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P4 2.2GHz Overclocked to 3.5GHz
GraveD sent linkage to a site
explaining how a homemade nitrogen cooling system
overclocked a P4
from 2.2Ghz to an incredible 3.5ghz. There's plenty of stuff
to poke at over there. Update: 01/17 20:42 GMT by T : boaworm writes: "According to this paper, the Finnish geeks have successfully oveclocked a Pentium 4 to 3675 Mhz. They claim it is a new World Record, and it sure looks like they beaten another O/C'd Pentium 4 submitted earlier today on slashdot. (Summary in English in the end)."
Who falls for such ludicris, ridiculous claims? I can't imagine an IT guy taking any of Ellison's claims seriously. Maybe someone that went to DeVry...
We're waiting on moving to 9i. No, wait, we're not even waiting. We just moved to 8i last year and there's no reason to move to 9i for us now, no matter how "unbreakable" or not 9i is.
Happily, though, these holes will get plugged and when we *do* move to 9i, it might be closer to being *giggle* unbreakable.
Didn't they start this campaign to get 'hacked' ? so they could close some more holes they couldnt find them selves ?
Now i wonder, it worked they all readdy found 7!
Quazion.
By essentially daring people to find holes, Oracle gets QA for the cost of embarassment, which I suspect for L.E. is about one cent.
The clearance system sounds logical. It is not. It is completely arbitrary. -- John Bolton
After reading the article, it struck me as funny how things never change. There are tons of PHB's out there buying up any big flashy ad in their free (if you fill out free survey, otherwise pay $XXX a year) industry mags. I am a Windows user (yeah yeah) but at least I am not stupid enough to buy anything first from Microsoft until they come out with one service pack first. Of course, here at unnamed large x86 cpu company (my company contracts here), they have decided to move to Microsoft's tune within 90 days of them releasing a product. So we have people (not just IT people, HR people, finance people) etc... installing the wonderful IT "engineered" version of WinXP. (Don't get me started on how in the world they think they make Microsoft's stuff more stable through their "engineering".) That anyone would buy into Larry's BS is bizarre. But the PHB's are entirely ignorant of the real world and would gladly believe that Windows XP is crashproof and utterly stable if Bill told them so. I hope somebody has their Oracle9i system hacked and then sue's Oracle for false advertising, amongst other things. --Shango
--ngoy
It does -- at least according to Alan Cox.
The reasoning is that
- Oracle has several "access control" features
- Customers use those "access control" features to control copyrighted material
- An Oracle exploit would then end up being a copyright control circumvention of some customer or the other
No matter what, you can be sure that contrary to M$, these holes will be worked on 24/7 and fixed like yesterday. :)
As opposed to most of MS's exploits, which had patches out like 3 months before the exploit became widespread.
the byproduct of years of oppression by the white man
If it's "let's attack the binary and see if we can break it", that's potentially harder to catch something like this, but then again, how hard can it be to see if the binary links against the system C library at the known offsets of gets, fgets, sprintf, etc.
What would be lamest of all is if the certification process goes something like, "What's your security engineering process? Oh, sounds secure to us."
The unique thing about software is that it is infinitely clonable. Once you've written a subroutine, you can call it as often as you want. This means that almost everything we do as software developers is something that has never been done before. This is very different than what construction workers do. Herman the Handyman, who just installed a tile floor for me, has probably installed hundreds of tile floors. He has to keep installing tile floors again and again as long as new tile floors are needed. We in the software industry would have long since written a Tile Floor Template Library (TFTL) and generating new tile floors would be trivial.
h tml
from http://www.joelonsoftware.com/news/fog0000000337.
>We try harder." [Avis Car Rental] - Harder than >what? Yesterday?
You're too young, no doubt, to remember the Slogan Wars between Avis and Hertz of the early 60's.
In those days, it was considered taboo for an advertiser to directly mention the competitor's product when making comparisons. In fact, it was quite a shock when, in the mid 1970's we started seeing TV commercials where one brand explicitly stated that their product was better than a specific competitor's product. It's pretty common now, but you never saw it back in the day.
Anyway, some consumer survey gave Hertz marketroids the idea that they were the #1 car rental company (in an unbound domain, with unspecified terms, naturally). Hertz went to town
with this "fact." Worthy of note, the Hertz sign atop the infamous Texas School Book Depository building.
Avis countered Hertz with their own ingenious slogan: various flavors "We're #2, but we try harder."
At the same time, they made yet another marketing innovation -- they designed all their ads so that they could be distinguished at a distance of 40 feet. Thank Helmut Krone for that.
-fb Everything not expressly forbidden is now mandatory.
A 3.5GHz P4 probably would perform like a 2.5GHz Athlon, given the difference in IPC. However, factor in SMT (HyperThreading) into the equation and it gets a lot more interesting. Hammer will have some competition when it comes out, even with a PR rating of 3400+ - the P4 will probably get to 3GHz by the end of this year.
In the end, the consumer is the one to win. But remember, speed in a processor is only good if the rest of the system can keep up with it. Witness i845 (the SDRAM version) as a way of making a fast P4 perform even worse than before.
I am more interested in the upcoming GeForce 4 and R300 chips myself as a way to increase gaming performance - processor power is secondary, as long as it is sufficient. For rendering performance however, I am interested in fast processors, and it looks likely that SMT P4's will rock with Lightwave 7b on a quad CPU board (8 virtual processors!). Not that I could afford one of these anyway, so the point is moot.
the processor can only dissapate so much heat through the silicon/whatever and the heat sink. it seems that that is the weakest link, is the connection between the core and the sink itself. would the processor run cooler w/o the heatsink (as it is disapating heat into the liq nitrogen too, that is in turn cooling the core), or does it really need a heatsink at such absurdly low temps? i understand the need for higher surface area to heat ratio concept, but it seems like with temps as low as -250* F or so, that one wouldn't need that 2" square tubing of copper as a heatsink: just stir the liq nitrogen really well :)
as a side note, that site is entirely in japanese. when is babelfish gonna support japanese? all i got out of that was a picture of the boot screen saying 2250 that was undelined in red. i'd mirror it, but i don't see what you would get out of looking at a bunch of pictures that don't seem to support their claim.
moox. for a new generation.
I've got a plot showing SPECint2000 vs SPECfp2000 for eight different chips, including the Pentium 4 2.0 GHz.
From the looks of it, overclocking to 3.5 GHz might make the Pentium 4 almost equal in performance to the IBM Power4 running at 1.3 GHz.
"Provided by the management for your protection."
Damn, you were faster. :)
:-)
Here's that english summary from muropaketti:
English summary!
Today we cooled the new Intel Northwood 2,2GHz CPU with liquid nitrogen (LN2 -196C).
The motherboard used in the tests was Asus P4B266 based on the Intel 845 chipset (DDR). There was a voltage modification on the motherboard which allowed the VCore to be raised as high as we needed. The memory module was Crucial PC2100 128MB and memory settings were the fastest possible (CAS 2 2-2-5).
We used a copper bowl on top of the CPU and poured some LN2 into it. It took a while until the CPU temperature started to drop and when it was cold enough, we started the test.
First test was run at 3300MHz (FSB 150MHz) and with no problem at all (VCore 1,9V). The next step was rather high but after raising Vcore to 2,05V Northwood worked stable at 3520MHz (FSB 160MHz). We went on with the tests and finally hit the limit.
We were able to boot to Windows 2000 when the CPU clock frequency was 3675MHz (FSB 167MHz) but we couldn't run any benchmark programs. The highest STABLE CPU clock frequency we were able to reach was 3630MHz (FSB 165MHz). At 3650MHz we were able to run heavy benchmark programs such as SuperPi and Pifast successfully although the VCore was quite high (2,12V). It seems that Pentium 4 can handle it without any conflicts.
Check out the pictures above
I think the 3675MHz Wcpuid-shot we were able to get can be considered as the overclocking world record at this moment (17/01/2002), but I'm pretty sure the Japanese will try to beat it as soon as possible
BTW, Quake 3 Arena was quite fun to play when the CPU was running at 3500MHz! o_O
I got a P4 1.4GHz at work a few weeks ago. I have a Athlon 800MHz at home. The RC5 client from distributed.net runs at 2.9 Mkeys/s on my home system. My machine at work only runs the client at a whopping 2.4 MKeys. So based on my result, a 3.5GHz P4 would be like a 1.8GHz Athlon.
Flaming/joking aside - anybody know why the RC5 client does so poorly on a P4 compared to a much slower Athlon?
loads of people overclock their G3s and G4s you muppet. My G3 400 (Yosemite) runs very sweetly at 550Mhz with no additional cooling, and my G4 400 (Yikes!) runs at 500Mhz. Apple made it more difficult to adjust multiplier with the Sawtooth models onward - so I can't overclock my dual 533 Mystic without soldering :-[, but there's a japanese guy who overclocks EVERY machine Apple brings out. he got the G4 733 (Digital Audio) running at 1066Mhz, and there are several people who have upped the bus speeds on their iBooks recently.
That was classic intercourse!
I broke open my $1800 mac, trusting my non-existant soldering skills and did it, and a $20 upgrade for 25% extra performance was really something. I could almost run Marathon on it :>)
I sneer at the BIOS OCers, if it doesn't require solder then I don't want it :>)
But I didn't overclock the processor - I overclocked the ISA bus!
The standard speed for an ISA bus is about 8 MHz, but my motherboard had jumpers for running it at different speeds. I had that baby running at 20MHz, and was lucky enough to find an ISA video card and network card that could run at that speed!
It really helped bump up the FPS when playing doom. <g>
I'm a leaf on the wind. Watch how I soar.
i've played a little bit with cryogenics in Phys Chem lab, and while LN2 rocks, liquid helium is an order of magnitude colder (4K vs. 77K, also $14.99 a liter, $0.89/L for LN2)...begging the question, what would happen if you used liquid helium to cool your system? iirc, silicon is a superconductor at 4K. would the superconductivity short out the chip (by making the substrate conductive), or would you be able to crank it up to any speed you want, say a few THz? (/no/ resistance = /no/ heat) it'd be a real bitch to manage, and you'd have to sink your whole motherboard in the very-well-insulated LH (but then eveything would be @ 4K and superconducting...hmm...1GHz FSB?), but could it work?
just a little food for thought.
Facts do not cease to exist because they are ignored. - Aldous Huxley