I have a few Slot 1 systems that went from the slowest to the fastest CPU supported. The remaining ones all have the maximum amount of memory also.
Upgrading an AM2+, AM3, AM3+ from the slowest to the fastest supported CPU is conceivable but I probably will not bother upgrading my Phenom II 940 since the speed increase would be marginal. I might build a low power CPU system though as an auxiliary which could be upgraded later.
I've built a lot of computers and have never once reused a motherboard. MB cost is trivial and usually comes with improvements--such as a faster FSB/more memory slots, etc.
I just rebuilt my P3 workstation from 1999 because the cheapest Intel replacement would cost upwards of $800 since Intel no longer supports ECC on desktop systems. As it happens, that system started as a Celeron 300A overclocked to 450 MHz and is currently a 1.2 GHz P3. I guess technically you are correct though since I could have replaced it with a cheap AMD system.
I have a bunch of old Slot 1 ECC systems still in operation and someone asked why I didn't consolidate them using VMware or similar. "Oh. Do they have a driver now that implements galvanic isolation?"
Not only do you have to find a ship, but you need one that can load and unload the equipment without the dock facilities that the tsunami destroyed. You also have to find the generators using damaged communications systems and move the generators over damaged roads to where the ship will load them.
You can only get a different address within the subnet your provider assigns to you, so companies will simply maintain a table of which ISPs use which size of subnet, and ignore the corresponding variable part of the address.
Presto, unique ID per household again
But this is largely already the case with IPv4. Either your single IPv4 address rarely or never changes or even worse, reverse DNS will return your DNS address assigned by your ISP. Do those DNS addresses ever change?
At least some IPv6 tunnel brokers allow you to setup your own reverse DNS.
1: Pages in memory are 4mb instead of 4kb, some programs make silly assumptions about it and that decreases compability.
This can't be right.
PAE mode is enabled by default anyway to take advantage of DEP. The limitation for the consumer versions of windows is in using more than the first 4GB of physical address space.
Write-blocker. Also, here, we did not do any writes to the drive, only reads. I wasn't asking you to suggest a way in which an OS can (generally) overwrite deleted file data, that's easy. I was asking you to explain how that could happen in the experimental setup we described, if you're suggesting it wasn't the drive-based GC that did it.
I am suggesting the drive based GC could be active after the drive is powered up with writes blocked because of an earlier accumulation of deallocated sectors even without TRIM support or use.
Some compact flash cards are FAT/FAT32 aware for garbage collection purposes. The Linux/BSD people discovered this when they noticed that they had significantly lower performance with other file systems.
What happens when I format the drive with a filesystem the SSD doesnâ(TM)t know about? What happens when I use database software that demands raw access to an unformatted drive? Does it just fall back to the âold daysâ(TM) behavior, where the SSD is dutiful and ignorant, or is the SSD âsmartâ(TM) enough to complain and break the system somehow?
If the drive does not understand the file system, then it can just default to doing garbage collection based on overwritten sectors presumably with some performance loss.
It's not TRIM. We used a non-TRIM OS and a write blocker for this reason. The manufacturer has mentioned a garbage collector that works with NTFS, and the only way it could work is by zero-ing areas of the SSD using information gleaned from the metadata. Hope this clarifies the situation for you!:-)
Despite my other post, I am not surprised that some manufacturers do this because it is an easy way to improve performance. Some compact flash cards understand specific versions of the FAT file system and do the same thing. This was noticed because they behaved differently depending on which file system was used.
Hey there. Unfortunately, what you've written isn't correct, and I encourage you to read into modern SSD garbage collection. These drives really do open up the filesystem by themselves, and look for deleted files and purge them, without being asked to do so by the OS. Otherwise, can you explain how file deletion using a non-TRIM OS, followed by a drive being connected to a non-TRIM OS with a write-blocker, would result in data being purged? (we proved this experimentally, and you can reproduce it in your own home using the supplied software and experimental parameters).
Start with a SSD which has a rated capacity of 40GB and 10GB of extra space for garbage collection. Write 40GB of data to the drive using all of the rated capacity without overwriting. Now write 10GB of data to the drive overwriting 10GB of the data written earlier.
At this point, without having used TRIM and without the drive being able to understand the file system since we did not use one, the drive already knows that 10GB of the first 40GB of data is no longer needed and GC can take place freeing up 10GB of space for the over provisioned area. This can take place preemptively while the drive is powered without any further commands or later when space needs to be freed for further writes.
Without writing the last 10GB of data and overwriting some of the 40GB of data written earlier, file deletion has to modify data structures already written to the disk and those areas will be subject to garbage collection and erasure which could happen later.
DDR2, DDR3, and GDDR5 require skew compensation (and perhaps equalization) for various signals because of manufacturing variations in the signal environment (motherboard, sockets, DIMMs, Number of occupied sockets, DIMM or chip loading, etc.) and in some cases because of the design (DDR3 chains some signals from chip to chip) in order to meet setup and hold requirements. GDDR5 is sensitive enough to require retraining even with temperature variations.
One of the reasons I got my armature radio license was the W6FXN repeater at Buzzard Peak near Cal Poly Pomona which was tied to the Running Springs seismic station. When the station detected significant earth movement, the repeater would key up and repeat the audio modulated seismic tone in the background. Depending on the geometry, that provided up to about 30 seconds of warning for areas of southern California. There was talk at one point of building a network to provide a comprehensive early warning system for southern California but little interest from potential end users.
Listening to the seismometer's tone modulated output was interesting. With experience you could hear the difference between the S and P waves and it was sensitive enough to detect weapons tests at the Nevada test range as well as large earthquakes in the western hemisphere.
I wonder why nobody thought of it before, now with al lthe patents they get it might become mainstream in 20 years.
It has been thought of before. Ever notice that in band duplexors use cavity filters on both the receiver AND the transmitter? Why bother if you could just subtract the transmitted signal from the received signal as part of the receive process?
Just the out of channel but in band noise from the transmitter is enough to overwhelm the receiver so it has to be filtered out after the transmitter but before the antenna. You can see this effect with any SSB transmitter. When transmitting without any modulation, the amplified noise will blanket the entire band within the passband of any output filter. The noise level is not significant compared to the possible transmit power but it is a lot larger than any background noise because of proximity.
In this case, they have two transmitters with separate antennas and use a process akin to beam steering to create a null at the receive antenna but the noise is NOT going to cancel at the receiver because it is different for each transmitter. Just the noise by itself will place severe restriction on the receiver sensitivity.
About the only thing I would buy AMD for in the CPU/Chipset market right now is the low end, where performance really doesn't matter much at all, only price.
Or if you want to build an ECC system without paying the inflated price of an Intel Xeon CPU and motherboard.
It is not so much building a stockpile as it is keeping the manufacturing infrastructure in place to minimize disruption if they need new SRBs manufactured on relatively short notice. For the same reason they continuously build aircraft carriers and submarines instead of doing a big batch and then stopping. If they stopped, the delay in restarting production would be significant.
It is not enough to have the design and manufacturing plans. You need the workers and specialized infrastructure as well.
Application support for IPv6 is as thin on the ground as it is, and for IPv6 it will be a hard prerequisite. That's a lot of rewriting no one is going to do.
The three applications I regularly use with native IPv6 support are Firefox, x-chat (IRC), and uTorrent. I use a IPv4 to IPv6 port proxy so my IPv4 usenet client can access a couple of IPv6 NNTP servers.
What do you mean waiting? I have an iPhone app, Perpenso Calc 4 [perpenso.com] that offers the functionality of the non-graphing TI and HP scientific, statistical and hex calculators and more.
Do they run for weeks to months on 4 x AAA user replaceable batteries?
People tend to keep their phones charged. Face it, convergence has happened with standalone MP3 players and it is currently in progress with respect to dedicated calculators.
I actually have more of a problem with custom and non-user-replaceable batteries than convergence except when the later leads to planned obsolescence or mediocre quality, performance, and reliability. Every calculator I have used in the past 30 years is still usable but nothing with a custom battery format is from only 4 years ago. My FT-530 with AA battery pack works fine while my FT-51 without must remain in its power cradle. I would consider buying an AA powered rugged netbook in spite of the weight, size, and performance penalty.
Devices which rely on phone network reliability are notoriously unreliable. When you need them the most is when they become unavailable. My standalone GPS, standalone MP3 player, and standalone calculators have never failed for lack of network access, remote controlled DRM, or battery power. My Palm IIIx will never suffer from Amazon like ebook deletions. I have no interest in surrendering my 4th amendment rights to the third party data exception any more than necessary.
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I have a few Slot 1 systems that went from the slowest to the fastest CPU supported. The remaining ones all have the maximum amount of memory also.
Upgrading an AM2+, AM3, AM3+ from the slowest to the fastest supported CPU is conceivable but I probably will not bother upgrading my Phenom II 940 since the speed increase would be marginal. I might build a low power CPU system though as an auxiliary which could be upgraded later.
I just rebuilt my P3 workstation from 1999 because the cheapest Intel replacement would cost upwards of $800 since Intel no longer supports ECC on desktop systems. As it happens, that system started as a Celeron 300A overclocked to 450 MHz and is currently a 1.2 GHz P3. I guess technically you are correct though since I could have replaced it with a cheap AMD system.
I have a bunch of old Slot 1 ECC systems still in operation and someone asked why I didn't consolidate them using VMware or similar. "Oh. Do they have a driver now that implements galvanic isolation?"
Sure. But before the backup batteries go dead?
Not only do you have to find a ship, but you need one that can load and unload the equipment without the dock facilities that the tsunami destroyed. You also have to find the generators using damaged communications systems and move the generators over damaged roads to where the ship will load them.
It would be painted green?
But this is largely already the case with IPv4. Either your single IPv4 address rarely or never changes or even worse, reverse DNS will return your DNS address assigned by your ISP. Do those DNS addresses ever change?
At least some IPv6 tunnel brokers allow you to setup your own reverse DNS.
One of the easy technical solutions is beam or null steering which ITAR happens to forbid. As usual, politics is the largest problem.
The ITAR regulations also prevent the design and manufacturing of GPS receivers which reject interference through beam or null steering.
This can't be right.
PAE mode is enabled by default anyway to take advantage of DEP. The limitation for the consumer versions of windows is in using more than the first 4GB of physical address space.
PAE mode still uses 4kb pages by default:
http://en.wikipedia.org/wiki/Physical_Address_Extension
Not that Windows XP without any service packs can address more than 4GBs when in PAE mode.
I am suggesting the drive based GC could be active after the drive is powered up with writes blocked because of an earlier accumulation of deallocated sectors even without TRIM support or use.
Some compact flash cards are FAT/FAT32 aware for garbage collection purposes. The Linux/BSD people discovered this when they noticed that they had significantly lower performance with other file systems.
If the drive does not understand the file system, then it can just default to doing garbage collection based on overwritten sectors presumably with some performance loss.
Despite my other post, I am not surprised that some manufacturers do this because it is an easy way to improve performance. Some compact flash cards understand specific versions of the FAT file system and do the same thing. This was noticed because they behaved differently depending on which file system was used.
Start with a SSD which has a rated capacity of 40GB and 10GB of extra space for garbage collection. Write 40GB of data to the drive using all of the rated capacity without overwriting. Now write 10GB of data to the drive overwriting 10GB of the data written earlier.
At this point, without having used TRIM and without the drive being able to understand the file system since we did not use one, the drive already knows that 10GB of the first 40GB of data is no longer needed and GC can take place freeing up 10GB of space for the over provisioned area. This can take place preemptively while the drive is powered without any further commands or later when space needs to be freed for further writes.
Without writing the last 10GB of data and overwriting some of the 40GB of data written earlier, file deletion has to modify data structures already written to the disk and those areas will be subject to garbage collection and erasure which could happen later.
http://en.wikipedia.org/wiki/Kelo_v._City_of_New_London
At low enough input to output voltage differentials, linear regulators have higher efficiency than switching regulators.
DDR2, DDR3, and GDDR5 require skew compensation (and perhaps equalization) for various signals because of manufacturing variations in the signal environment (motherboard, sockets, DIMMs, Number of occupied sockets, DIMM or chip loading, etc.) and in some cases because of the design (DDR3 chains some signals from chip to chip) in order to meet setup and hold requirements. GDDR5 is sensitive enough to require retraining even with temperature variations.
One of the reasons I got my armature radio license was the W6FXN repeater at Buzzard Peak near Cal Poly Pomona which was tied to the Running Springs seismic station. When the station detected significant earth movement, the repeater would key up and repeat the audio modulated seismic tone in the background. Depending on the geometry, that provided up to about 30 seconds of warning for areas of southern California. There was talk at one point of building a network to provide a comprehensive early warning system for southern California but little interest from potential end users.
Listening to the seismometer's tone modulated output was interesting. With experience you could hear the difference between the S and P waves and it was sensitive enough to detect weapons tests at the Nevada test range as well as large earthquakes in the western hemisphere.
Has there been a net partition or what?
Via relativistic collisional habitat damage?
It has been thought of before. Ever notice that in band duplexors use cavity filters on both the receiver AND the transmitter? Why bother if you could just subtract the transmitted signal from the received signal as part of the receive process?
Just the out of channel but in band noise from the transmitter is enough to overwhelm the receiver so it has to be filtered out after the transmitter but before the antenna. You can see this effect with any SSB transmitter. When transmitting without any modulation, the amplified noise will blanket the entire band within the passband of any output filter. The noise level is not significant compared to the possible transmit power but it is a lot larger than any background noise because of proximity.
In this case, they have two transmitters with separate antennas and use a process akin to beam steering to create a null at the receive antenna but the noise is NOT going to cancel at the receiver because it is different for each transmitter. Just the noise by itself will place severe restriction on the receiver sensitivity.
Use of the carrot does not preclude use of the stick. I expect they are moving on several fronts.
Or if you want to build an ECC system without paying the inflated price of an Intel Xeon CPU and motherboard.
It is not so much building a stockpile as it is keeping the manufacturing infrastructure in place to minimize disruption if they need new SRBs manufactured on relatively short notice. For the same reason they continuously build aircraft carriers and submarines instead of doing a big batch and then stopping. If they stopped, the delay in restarting production would be significant.
It is not enough to have the design and manufacturing plans. You need the workers and specialized infrastructure as well.
The three applications I regularly use with native IPv6 support are Firefox, x-chat (IRC), and uTorrent. I use a IPv4 to IPv6 port proxy so my IPv4 usenet client can access a couple of IPv6 NNTP servers.
As usual, piracy and porn are leading the way.
I actually have more of a problem with custom and non-user-replaceable batteries than convergence except when the later leads to planned obsolescence or mediocre quality, performance, and reliability. Every calculator I have used in the past 30 years is still usable but nothing with a custom battery format is from only 4 years ago. My FT-530 with AA battery pack works fine while my FT-51 without must remain in its power cradle. I would consider buying an AA powered rugged netbook in spite of the weight, size, and performance penalty.
Devices which rely on phone network reliability are notoriously unreliable. When you need them the most is when they become unavailable. My standalone GPS, standalone MP3 player, and standalone calculators have never failed for lack of network access, remote controlled DRM, or battery power. My Palm IIIx will never suffer from Amazon like ebook deletions. I have no interest in surrendering my 4th amendment rights to the third party data exception any more than necessary.