Slashdot Mirror
Overclocking Calculators?
Klar writes "If you're looking for something new to prove your tech prowess, Richard Piotter has a great how to on overclocking Texas Instruments graphing calculators. You can actually double the cpu speed, which is noticeable when graphing complex functions."
But I get better results! Before, 1+1 was always 2, but now it's 2.0358!
Beowulf clusters of overclocked T.I. calculators!!!
Too Much Time On Their Hands Department.
The higher the technology, the sharper that two-edged sword.
Slashdot, putting the "New" back in news.
Personally I think my calculator calculates rather well. If I was going to use it on a gaming platform(what's the point?) then I guess something like this would come in handy.
Pfft, tell me when you've over clocked a pencil and paper.
I tried to overclock my slide rule, but it just went up in smoke.
The coolest voice ever.
This is soooo old. I overclocked my TI calc several years ago, putting a snazzy OC switch on the side. All of my friends were terribly impressed.
On the other hand, it didn't really help in my classes, except to get the wrong answer faster...
Will students be caught cheating with these overclocked calculators?
Rock that crushes, Paper & Scissors that don't matter.
Utilities have been coded to overclock HP48/HP49 calculators to a wide range of clock speeds - you can pick and choose what you like, up to 200MHz. This is pretty impressive too - that's more than a doubling of clock speed, IIRC.
tsk tsk tsk how lame from the editors
Did this back in '96 on my Ti85.
A witty saying proves you are wittier than the next guy.
I've seen this for the TI-83 a while ago. I have the TI-89 now and it's great for the classes I take. I've overclocked cpus (AMD K6-2), but you've got to have some balls or some money to try and overclock a $150 calculator.
It just seems to me that the risk outweighs the benefits.
ammm.... is this really a news item or just some sad person with way to much time.
Curently, the TI-81, TI-82, TI-83, TI-85, TI-86, TI-89, TI-92,a nd TI-92 Plus can be accelerated.
Pfeh. If I can't overclock my TI-2500 Datamath I'm not interested.
The coolest voice ever.
the Futurama cryogenic lab tech.... "Welcooome....To the WOOOOORLD of 5 YEARS AGO!"
Can I use a tunable capacitor instead of a switch with a cap in paralell?
eh, finally a chance to write a working Tetris for my TI82. Yes, wrote Tetris to it, but no amount of optimization could make it run at a speed that would make it any kind of challenge.
(the pacman on the other hand... I never finished it, hated myself for some levels design)
45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
...when plotting real-valued functions.
Ha ha. I kill me.
This has been known for years. Keep in mind that overclocking by 2x drains the batteries by 2x as well.
I overclocked my casio wrist watch. Now I have all the time I need.
which is noticeable when graphing complex functions
thats the point.
You should try putting a new processer in there. I put a Althon64 in my ti-89 and now its graphing ability goes at least 10 times faster than before.
The only problem is the heatsink and fan weighs about 5x as much as the calculator itself, and it is too loud to use in class.
But its really fast!!!
It really cranks away when graphing DiffEq's. It often takes more than a minute to finish graphing! Needless to say, bumping up the clock speed of the calculator 2-3X helps significantly here... especially when I'm taking an exam and every minute counts!
My userid is prime!
I don't know what's wrong with the slashdot submission process, but this isn't a new site.
That site has been around for nine years, and in fact it doesn't list any of the popular TI graphing calculators today. The TI-83 Plus, 84 Plus, 92 Plus, and Voyage 200 are all missing. (Incidentally, this French guide will show you how to overclock your 83 Plus).
Sure it's a great site for overclocking older calculators, but please don't say "something new" when this has been widely known for years.
I overclocked my TI-85 long ago, so that Daedalus (i think that was the name of it), a 3D grayscale game, would run better....
:)
it was nice. I even had the switch to turn it off so that my batteries would last longer during class
--buddy
Graphing complex functions is slow. Calculating integrals is slow. 3D graphs are abysmally slow. Speeding these functions up could be quite useful. Of course, you could just use Virtual TI on your PC if you wanted it to be really fast, or there's always Mathematica. I'm sure overclocking your calculator cuts the battery life in half or worse, which is why they are clocked so low by TI to begin with. Now if he could figure out a way for it to automatically overclock itself only while doing calculations (not waiting for input), then he might be onto something...
main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
I just discovered a bug/feature on the TI-85! If you do a full backup from another calculator or computer, you can have the PROGRAM commands set to arbitrary memory locations! This means that we can now run fast custom assembly language routines on calculators.
They can also run interpreted and assembler programs. These would also run faster, but that's not necessarily a good thing because many are games that may become too fast and unplayable.
This site was actually featured on ticalc.org extnsively a few years back. It's acutally nothing new.
Wow, the TI-89 uses an RC oscillator for its clock! That kind of clock is one of the cheapest and least accurate, so I wouldn't want to run a real-time-clock off of it. I wonder if they have some sort of calibration mechanism on the production line, or if the processors are so underclocked already that they will surely work with a large variation of clock speeds. Even after leaving the production line, RC clocks drift and are more sensitive to temperature, so TI must always leave plenty of speed margin.
HIV Crosses Species Barrier... into Muppets
Maybe we can do a slashdot version of Vh1's I love the 70's, 80's, and 90's.
I did this in highschool. The school I went to had lots of rich students and about 2/3 of them had graphing calculators. I used to charge them 50$ to overclock it.
I found that the battery life is signficantly reduced, and if you go too far overclocking them, the cpu will overheat playing tetris on warp speed after 20 mins and will cause the plastic case to melt and the cpu to die.
~ryan
Wow! TI calculators can graph complex functions? Cool. I wonder how they portray four real dimensions.
i'm sure the fact that theres more games then math programs in ticalc.org's asm sections will tell you what the extra cycles would be used for......
Overclocking was done with switch which added capacitance when in parallel to get 2X.
Switch was flipped with magnetic rubbed down side of case and reed switch flipped accordingly.
Worked well on several modaseels (C/CV/CX) I had for internal calcs but not for card reader though which was rate dependent though!
Speaking of which also did internal 10 bit machine code using EPROMS - anyone remember the really neat "microcode" listings "published" within the PPC club based in US?
We had some members in Sydney and Melbourne etc who did the hardware mods as well as providing some neat software and by combining overclocking with machine code exec I managed translation of FORTRAN programme running on VAX with parallel processor and made into just 8K (2 x 4K ROMS) of machine code steps and could do some (very) heavy duty calculations when doing field geophysics in the early 80's - all battery powered and pocketable!
Alex.
there are a few things like solving intercepts, and more likely basic games and programs. I remember a few times during math tests, when I finished early with the equation problems I knew how to solve, I would go back to the ones I didn't and try to solve them by writing a basic program that would try all possible solutions from 0 on up untill it started to zero in on the answer. Sometime it would come up with an answer, sometimes I ran out of time waiting for the calc to find a answer. An over clocked calc would have been a bit of an advantage.
So I was a dork... a dork who was bad at math, but good at solving problems.
Business News and Resources: www.usasource.net
Are you sure that wasn't doom II?
Actually, in a lot of my math classes these days, I wish my TI-89 was a little faster when doing Sum stuff or when doing three-dimensional graphs.
The articles discuss putting in a switch so you can choose normal or turbo speeds. Anyone know if you can switch on the fly or does the calculator have to be off?
Laugh all you want, these calculators are capable of stuff that's really time consuming.
Put
Y1=(somefunction)
Y2=FnInt(Y1(X),X,0,X)
Y2 displays integral of Y1. This isn't docummented anywhere and not without a reason. Getting the plot of even a simple function like Y1=sin(X) takes some 5 minutes as the integral is calculated separately for each pixel. Put more sophisticated function for Y1, or put Y3=FnInt(Y2... to get second integral and wait 2 hours or so for results easily.
In this case overclocking serves saving the batteries. True at double speed the batteries are used up nearly twice as much, but running for a hour at a single speed will drain them more than running for half a hour at double speed.
And yeah, these "insane" times are quite reasonable. I've been writing some cool stuff for my TI82. Generating a fractal took maybe a hour or so. "brute forcing" some logical problem lasted only 15 minutes just thanks to some luck (the solution was within first 5% tested). I found the graphs of integrals useful - I entered the function on the start of a test and could test whether my calculations were correct when it was drawn about the middle (and I had to use the calculator for other calculations). It was actually pretty fast at "your generic" numerical methods, and as we were free to choose the platform/language for writing our "numerical methods" programs, I didn't have to show up in the lab even once whole semester, wrote everything on the calculator.
One thing that sucks is lack of recursion support, Even the Prog[NAME]/Return function works only 1 level deep. But even this can be solved by using lists instead of local variables, matrices instead of lists.
45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
What happened to graphing calculator development? While I was in High School there was this burst of activity with the TI line, with frequent new models and upgrades. And then they stalled. And stymed. I got a TI-92 Plus my senior year in High School, and that has stayed TI's top-of-the-line ever since. It's like they've done zero development for the past ten years. You can get full color-screen Game Boy Advances with hardware far in advance of what you would find in a TI for about 100 dollars less, yet you have to use hardware trickery to fake greyscale on these dinosaurs. Their Ancient. Years after I've graduated college, they're still the best you can get. Now they're called the Voyage 200, but they're still the same 68000 - based calc with very similar limitations.
Where is somebody to steal TI's crown? Somebody has to recognize the power of full-color 3D graphics in mathematics. Doesn't anyone want the market TI has abandoned?
The ______ Agenda
Thats probably what the switch is there for. Pretty sure...
I think it is more than 2x, though. I thought it was 4x, but I could be wrong.
The overclock mode works great, except when you try to print through the IR port.
post everything on hack a day week? hackaday.com
Tip: it's not something simple like punching a few buttons or using a pencil to cross over certain lines. Check through the whole procedure and see if you have the required supplies...don't go taking out your batteries and trying to open the calculator like I did :(
Look what I got for the value of Pi after I overclocked my Ti! What a cool hack! 3.141592653589793238462643383279502884197169399375 105820974944 59230781640628620899862803482534211706798214808651 3282306647 09384460955058223172535940812848111745028410270193 8521105559 64462294895493038196442881097566593344612847564823 3786783165 27120190914564856692346034861045432664821339360726 0249141273 72458700660631558817488152092096282925409171536436 7892590360 01133053054882046652138414695194151160943305727036 5759591953 09218611738193261179310511854807446237996274956735 1885752724 89122793818301194912983367336244065664308602139494 6395224737 19070217986094370277053921717629317675238467481846 7669405132 00056812714526356082778577134275778960917363717872 1468440901 22495343014654958537105079227968925892354201995611 2129021960 86403441815981362977477130996051870721134999999837 2978049951 05973173281609631859502445945534690830264252230825 3344685035 26193118817101000313783875288658753320838142061717 7669147303 59825349042875546873115956286388235378759375195778 1857780532 17122680661300192787661119590921642019893809525720 1065485863 27886593615338182796823030195203530185296899577362 2599413891 24972177528347913151557485724245415069595082953311 6861727855 88907509838175463746493931925506040092770167113900 9848824012 85836160356370766010471018194295559619894676783744 9448255379 77472684710404753464620804668425906949129331367702 8989152104 75216205696602405803815019351125338243003558764024 7496473263 91419927260426992279678235478163600934172164121992 4586315030 28618297455570674983850549458858692699569092721079 7509302955 32116534498720275596023648066549911988183479775356 6369807426 54252786255181841757467289097777279380008164706001 6145249192 17321721477235014144197356854816136115735255213347 5741849468 43852332390739414333454776241686251898356948556209 9219222184 27255025425688767179049460165346680498862723279178 6085784383 82796797668145410095388378636095068006422512520511 7392984896 08412848862694560424196528502221066118630674427862 2039194945 04712371378696095636437191728746776465757396241389 0865832645 99581339047802759009946576407895126946839835259570 9825822620 52248940772671947826848260147699090264013639443745 5305068203 49625245174939965143142980919065925093722169646151 5709858387 41059788595977297549893016175392846813826868386894 2774155991 85592524595395943104997252468084598727364469584865 3836736222 62609912460805124388439045124413654976278079771569 1435997700 12961608944169486855584840635342207222582848864815 8456028506 01684273945226746767889525213852254995466672782398 6456596116 35488623057745649803559363456817432411251507606947 9451096596 09402522887971089314566913686722874894056010150330 8617928680 92087476091782493858900971490967598526136554978189 3129784821 68299894872265880485756401427047755513237964145152 3746234364 54285844479526586782105114135473573952311342716610 2135969536 23144295248493718711014576540359027993440374200731 0578539062 19838744780847848968332144571386875194350643021845 3191048481 00537061468067491927819119793995206141966342875444 0643745123 7181921799983910159195618146751426912397489
Already done - your job's been outsourced to India, where they do your paper-and-pencil work faster for a quarter of the price.
Oh, we're cutting costs, so make sure to return your pink slip with your badge so we can use them both again.
This web page has not been updated since 2000... I remeber back in the day this was new and cool. 5 years though in internet time is like rediscovering the slide rule -- good job guys! I hear IBM are releasing the teletype II any day :)
its funny the progression that this story has taken -- it went from hackaday --> fark --> slashdot, and doubtless appeared on hackaday due to someone trying this trick out.
This is the SECOND repeat of a hackaday post in less than 24 hours.
That makes 3 or 4 in as many days.
How about something original, not plagiarized from another site WHICH WAS PROMOTED ON SLASHDOT A LITTLE WHILE AGO!!!!
At least the TI calculator I have runs on a Z80 processor, which you can easily code for using a cross compiler. Fun stuff!
A friend of mine wrote a Windows clone for his TI-83. You would shit your pants. You could click the Start button, it would pop up a few applications and you could run clones of notepad and some other scary stuff. Had nested menus and a desktop. Had a built in remote chat app. Although it was nifty, it used up about 90% of your memory and all the CPU power. The irony did not escape us. But common sense did, and he lost the entire progran without making a backup.
Seriously, I am going to try and overclock my TI-83 because I use this regularly for physics and engineering problems and the equation solver is a godsend.
Why would you need a graphing calc in a diffyq exam? The questions are always theory-based and you can hardly copy-and-paste a picture of Legendre polynomials when you're asked to solve them from first principles.
Actual overclocking rate varied in actual speedup vs reliability. (nothing new under the sun!)
;-)
2x was rock solid across several models and I recall other members getting 2.something before straying into areas of unreliability above that.
Of course we "only" had air cooled models so perhaps some mad scandinavian with -40c temps managed 4x but with the thick gloves necessary perhaps was never able to actually press the little black buttons to use at that speed!
Alex.
For significantly overclocked calculators.
I remember reading about this last year, actually. I think all that changed is that they have a better, more collected website now.
It is pitch black. You are likely to be eaten by a grue.
I'm sure overclocking your calculator cuts the battery life in half or worse
It cuts the battery life in less than half and calculation time in half or better. Sure "idle" run drains battery way worse, but if you perform some time-consuming calculations you're better off than normally. (that is, on one set of batteries "till they die" you may get 1300 results in 13 hours instead of 1200 results in 24 hours.)
45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
We were overclocking our HP-41CVs a decade ago. I have this little work-horse sitting in front of me this very moment. It has a magnetic switch for enabling/disabling the speed improvement (pass a magnet across the back). The overclocking rates at about 1.8 times the original speed, but you sacrifice battery life for that performance boost. I don't bother kicking up the speed these days as I never do complicated calculations with it any more.
-- Will program for bandwidth
Does this work on the TI-86? because if it does, it means better Super Mario and better Tetris for all.
Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
PPC! I used to hang at the PPC headquarters in Orange County on the weekends. Obviously I did not have a life.
Yeah, I did the microcode stuff. I had the "dan rom" (I think that's what it was called) for easy entry of op codes. My big project was a microcode debugger that allowed you to single step through your code by emulating the instructions, but I never did release the program.
The one important thing programming the HP-41CV taught me was optmizing for space. We were always trying to remove just a few more bytes from the program due to the limited address space.
-- Will program for bandwidth
You forgot to put the entire installation into a sink, preferably in the kitchen.
You can't handle the truth.
Only if you type equations into the calculator at high speed, one after the other, constantly. If you use your calculator normally, >90% of the time it's sitting idle or taking typed input. If you're doing really long calculations *and* you're anal about turning it off every time you finish a calculation, you might cut that to 50%. During that time an overclocked calculator will be doing no work but using twice the battery power anyway. Which is why I say it would be useful to overclock only when doing calculations, in the manner of Intel's Pentium M laptops with the adjustable clock speeds.
main(c,r){for(r=32;r;) printf(++c>31?c=!r--,"\n":c<r?" ":~c&r?" `":" #");}
Once I wrote a passable Tetris clone in TI BASIC to waste my spare time in class. Then I ported it to QBasic, and it started running at acceptable speeds even on an old-ass 8088. Then I turned it into C and made it run inside a graphical environment; this formed part of freepuzzlearena. Years later, I added a hallucinogen-simulating graphic distortion layer, first for the PC and then for the Game Boy Advance, resulting in TOD.
When I got my TI-89 in 2000, the shop I bought it from offered an overclocked version for a small surcharge. At first, I went with this offer. What I got was a brand new calculator in original packaging that had been opened to install a tiny switch which would enable or disable a capacitor inside the calculator. It did work flawlessly, but I returned it because while opening the calculator, they had slightly scratched the case and who would want to pay big bucks for a brand new calculator with a scratch?
;).
Also, a few years before that, I overclocked my TI-86 in the same way. I removed a SMD capacitor and that made the calculator run at roughly twice the speed. This also meant it drained the batteries at twice the speed. My original intention had been to add a switch, but unfortunately that tiny SMD part just disappeared some day and now I am left with a TI-86 that is useless for the one thing I love to use it for - playing tetris
OK how to go about OCing a calculator that uses reverse Polish notation? Put an Intel 8086 on the barby?
First rule of holes; When in one, stop digging.
You can get full color-screen Game Boy Advances with hardware far in advance of what you would find in a TI for about 100 dollars less
But then you have to buy a flash card in order to be able to load custom programs onto the GBA, and a flash card costs oh, about 100 USD. In addition, how big is the GBA's keyboard?
Does this significantly shorten battery life?
They can also run interpreted and assembler programs. These would also run faster, but that's not necessarily a good thing because many are games that may become too fast and unplayable.
That's TI's fault for not including a real-time clock as a reliable timebase for animation. Use of timers inside a PC is why a game can run at the same speed on a 20 MHz 386 or a 2000 MHz Athlon. A faster clock speed coupled with a reliable timebase would allow for real-time software 3D engines.
It was called HYPER-41, from Synergistic Design. I got mine in 1987, although it first became available in 1985.
The exact percent of speed increase depended on the generation of 41C. For example, a second generation 41C has a typical increase of 80 to 90%, while the eighth generation CV/CX (sold after September 1985) had a whopping 180% to 210% increase.
The upgrade was designed as a do-it-yourself kit, but I remember that I couldn't complete it for some reason and sent it to the company to do it.
Having a clock speed upgrade on a calculator has got to be one of the true signs of geekdom.
Is why you wouldn't run equations like that on something with a bit more power. The PC does not lack for software that can do mathematical calcuations. You can do that stuff pretty fast is you throw a P4 at it.
I certianly don't discount the cool factor of OCing a calculator, however if I'm doing calculations on it that are taking over an hour, it's time to throw more hardware at the problem.
During normal idling/input there shouldn't be a significant drain.
I don't know how the z80 calcs manage thier power but this is how the ti89 does it.
There is a low power port, writing to it disables the cpu till one of several specified interupts occur. If you are actively typing then the cpu will write 0b11111 to the port, if the calc has been sitting idle for a few seconds it will write 0b11110. The difference in the last bit means that the fast timer (256hz/350hz depending on hw version) interupt will not be able to wake the cpu. (If you are typing you want a fast response so the cpu should not be disabled for too long, but if the calc is sitting idle then it will try to save more power.) In both cases the 20hz timer can enable the cpu to take care of things like cursor blinking. (bit #4 is the 20 hz timer, #3 is the link IO, #2 is the 1hz real time clock on a hw2/USB on HW3, #1 is a keypress indicator #0 is the the 256hz/350hz timer)
http://en.wikipedia.org/wiki/Jury_nullification
I don't suppose the same technique could be used to overclock the alread overclocked Ti83+ or 83+SE?
Remember children, all generalizations are wrong.
...so I can't wait to see their reaction to this.
it seems that many articles are being taken from http://hackaday.com This and the altiods mp3 player were both featured there.
Seriously, if it takes 5 minutes to do an integral, then those calculators are ripe for reprogramming.
h tm
Seriously.
You could quite possibly do a numeric integral, faster, with paper and pencil.
http://csm.jmu.edu/physics/rudmin/ParkerSochacki.
At this link, the author shows how to solve (exactly, numerically) a previously unsolvable system of differential equations using a relatively new (~12 yrs old) method.
Program your calculator to do that, and you'll be lightyears ahead of the competition.
Correct Horse Battery Staple: 72 bits of entropy. Enter "Correct H" into google. When it generates the phrase, that's
There are a fair number of c/asm games written by novices for ti calcs that use empty loops to waste time. But the properly made games use the timer interupts available.
http://en.wikipedia.org/wiki/Jury_nullification
Girlfriend??? Please explain.
I overclocked my TI-82 (one of those old rectangular grey models) and then really impressed my friends when it graphed functions faster than their new TI-89 titaniums.
No more lag in intense sessions of Block Dude.
I gave serious consideration to doing this exact mod to my TI-85 in highschool some 10 years ago, but could never bring myself to risk breaking my precious calculator.
It's still interesting purely for its hack value, but the opensource EasyCalc for PalmOS does most of the things that I used my TI calc for and it's much faster even on lower end PDAs. Plus the other applications and games are far richer than their TI-Basic or z-asm equivalents (if there were equivalents).
I recently sold my TI-85 and accessories for $50.
University - a box of academia nuts.
or play .ogg files?
Anyway, the TI-85 uses a RC resonator to clock the CPU. When a smaller cap (1pf in this case) is substituted for the original, the RC constant becomes roughly 150% faster (cap takes less time to charge) which increases the overall speed of the circuit. This allowed me to have a 15MHz TI-85 that mostly worked. Incidentally the use of an RC resonator is why the calculator gets slower when the battery starts to sag. Apparently TI was too cheap to use a $0.20 quartz crystal.
I just did the mod and it works fine on my TI-89 Hardware 2.0. How do I check the clock speed to verify?
br> I replaced the C4 capacitor on HW2 with 22pf. When graphing functions I can tell it is much faster.
This was going on when I was in high school, 10 years ago. (not that I'm incredibly old, but being ten years behind the curve is spectacular even for slashdot) You could overclock a TI-85 pretty easily, although it wasn't really necessary. The real joy was in installing a hacked ROM through an overflow on the link cable and running games written in Z80 assembly. It was the ultimate time-waster: a gameboy that your teachers allowed in class. TI even caught on later that their overflow bug had become a feature, and built in access to run assembly code on the TI-86.
There were some truly great games written, too. A few (Sqrxz comes to mind) even eventually made the leap to the gameboy.
...when someone posts an article describing how to double the speed of one of those--maybe by running them on 240VAC and using a Peltier cooler to keep the motor from burning out?--then I'll be impressed.
I'm afraid I don't personally know which is the wire on an IBM 650 accounting machine that can be cut to increase its performance by 50%, but I knew people who said they knew...
"How to Do Nothing," kids activities, back in print!
Here is one of the original overclocking articles with information about power consumption after overclocking.
p eople.ee.ethz.ch/~blutz/TI89Spec/TIAccelerate.html /a>
http://web.archive.org/web/20011031021144/http://
Considering I spent most of High School playing games on my TI-83+...
a bit more CPU performance would have been great for PimpQuest and Frogger.
Use an emulator (several can be found here):
Why?
That way you can have a TI-83 on a few GHz CPU(s).
But that's the way all slide rules work. And because you get used to the scientific notation and decimal places that bit becomes a snap. Try for something like 3.21 x 3.92.
This post written under Gentoo-linux with an SCO IP license.
When I am graphing an infinite series that doesn't converge, it will take 20 minutes instead of 45 on my Ti-89? Still faster to figure it out by hand (calculaters are evil in college, only help you stop figuring things out for yourself)
I overclocked my toaster and burnt my toast in one minute instead of 3! This is an amazing technique. I gotta try it on my high colonic machine!
Table-ized A.I.
I overclocked my TI-86 a few years back. It now graphs at amazing speed, fast enough to graph y2=fnInt(y1,x,0,x) within the limits of my patience.
That speed boost is a bane to those games which rely on looping for timing. Games such as Mario 86 and several Breakout games are now unplayable. It's a small price to pay, though, to be able to rely on brute forcing harder mathematical problems ("How many integers between 1 and 10 000 are multiples of 3 and 4 but not 5.").
I myself own one of the more recently manufactured TI-84s, and I notice that it is the only TI graphing calculator not listed on this fellow's site of otherwise great technical suggestions....
I would also be quick to remind everyone that http://www.ticalc.org/ has an extensive library of TI apps as well as links to other calc sites with more detailed overclocking hints and instructions.
Just overclock the hub!
This post written under Gentoo-linux with an SCO IP license.
wow - Nick Reid.. I googled for him a year or so ago in case he was anywhere - I recall doing stuff at his place in the Eastern Suburbs. Didn't meet John McG but of course I used ASM3 and subscribed to Melbourne notes religiously. I got a couple of articles published in Richard Nelson's journal - writing to display using PRPH SLCT if I recall. My ID was 10282 if you care to look up.. Good to see Richard alive and well. And yes, sigh, programming efficiency is a very expensive commodity I use all the lessons of hardcore 80's machine coding and like to think our cross platform desktop apps are a lean and flexible design internally yet still takes advantage of readability and lego-clock assembly into new variations reliably and quickly. (quickly did some neat car GPS based competitive dist/timing version for a recent car rally I drove in based on our "express" car tracking app for example). Alex.
Any news on the development of the Qonos?i les.jsp
http://www.hydrix.com/pages/body/products/qonos_t
But I really wanyed to overclock my TI/99....just wondering how fast the Wumpus could run.
Make America grate again!
Let me just pull out my PC while I'm sitting in Calculus class...
My high school issued out graphing calculators to the students in classes that needed them. Didn't even have enough for everyone, so some people had to share. Sucks when students live in different cities from each other.
ticalc.org Great site, which has linked to the site mentioned in this article for quite some time. Thing is, that site only talks about overclocking versions 1 and 2 or the TI-89 hardware, not 3 (titanium)
hello and welcome to 5 years ago
Dude I just Overclocked my... CLOCK!!!! I put a lawnmower engine on the dail on back and when i turned that baby on you should have seen the hands fly!!! I'm so 1337!!!!
Insert Pithy Quote here.
Hmm graph scatter plots an quadratic regressions at twice the speed? I'll take it!
Does anyone know if this'll work on a Ti-89 Titanium?-I just got one this year for class. Good stuff.
He's saying that TI could put together a calculator with the computing and display technology of a gameboy and the keyboard of a traditional graphing calculator.
Not necessarily:
Pro: My friends think I'm really cool.
Con: I don't know what time it is.
I swear by my 9850GB+. I'm forced to use a TI-83+ for school, and I hate it. The Casio is far easier to use.
... or did anyone else mistake the guy's name for "Richard Plotter"? I mean, the Dean of Civil Engineering at my university was named Russell Bridge; but a guy that overclocks his calculater named Richard Plotter would have beaten that hands down...
-- Your mother uses Emacs.
I could have used this about 4 years ago. :/
[%] Cingular Ringtones
One thing I must admit, is that I beleive his site goes into a lot more than what most sites do.
As a person wanting to learn more towrad the inner workings of electronic (Boards, circuits etc...) I see that most sites simply spit out. "Remove the T4-dydro disk, and replace that vaule with a n^4/5! to determine the new disks speed. OK.. next step..." And with that I'm already lost. While this site describes it down to how many screws your gonna remove... like baby step for those of us new to it. And I'd much sooner take my trail-and-error period of learning this and use it on a TI calculator and not a $2000 computer.
I say bravo!
Never try to beat a professional at his own game!
Is this realy news? This has been linked to ticalc.org for years now, anyone who would actualy do this has been there and seen this...
http://www.ticalc.org/hardware/overclocking/
Back when ticalc.org was really thriving, this was pretty commonplace to do..
I turboed my TI-85 back in 1998.
-Jope
That is the nature of the Internet and of this site in particular, if you don't like it, turn your computer off.
Refering to stuff in other site is not plagiarism. Don't be stupid.
The mass media, movie industry and the music cartels have brain washed you to a level that talkin about something interesting is frowned upon by you as plagiarism.
If that is the case we can't talk about anything, since by doing so we are plagiarizing ideas (according to your weird view of the world).
IANAL but write like a drunk one.
RPN is invaluable. It is the true strength of the HP. Nothing can blow through an equation like an RPN calculator, even with a small stack!
W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
... how to overclock my brain!
The Tao of math: The numbers you can count are not the real numbers.
Seems like there aren't as many nerds using casio.
I did it by basically shorting a resistor used in an RC oscillator. Luckily, it didn't prevent the oscillator from working but made it run at max speed.
At the time when the TI-57 had red LEDs (afterwards, they came up with LCDs)... I had asked TI for the schematics (I still have the 1 page document if anyone wants a scanned copy)... and I had modified the R-C bridge that was used as a time base for the clock and put a variable resistor... machine would go 16 times faster without making mistakes... beyond that, it was rather fun to watch. The calculator still works... but looks a bit tweaked (too many plugs into it, including a speaker, a reset button, an external keyboard and a connecter to trigger an external relay).
Gilles.