Author: Aaron Gordon
Date: 07:18:42 12/02/02
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You can find out where the chip was made, when it was made and what stepping the CPU is. For example.. if someone walked up to you with three Thunderbird cpus. One was an AFFA stepping, one was a BXHA stepping and the other was an AXIA.. which would you choose? No idea? Only by LOOKING at the top of the cpu can you figure out which particular chip it is (I'm not talking about just the cpuid stepping info). Someone that knows what they're doing would choose the AXIA. It has a 1.5GHz core (doesn't matter what it's marked) and can run 1.5GHz without problems. BXHA can't do over 1.2GHz and an AFFA has problems hitting 1GHz. How about on the line below the stepping? There are two possibilities.. one will start with a number, the other with a letter. Any idea which one to choose? The CPU w/ a letter (usually a 'Y') can run a good 50MHz faster. If you don't like overclocking you can always drop the voltage and leave the chip at it's current clock speed. An AFFA Tbird at 1GHz would need 1.75v at the least. A 1GHz AXIA could run 1.3v. Thats going from 54.3 watts to 29.96 watts. If you get an AYHJA you can just do watts * 0.80. How about this one.. an AYHJA core. These run 20% cooler than standard Tbird cores. How do you know if you've got one? LOOK AT THE CHIP. Look at the AMD and Intel datasheets on their CPUs. Look at the information on where it was made, the area where it shows the date (what week of the year) it was made, etc. Another example.. Week 25 and newer Celeron 366's came with a 550MHz core. Every single one could do 550 at default voltage without problems at all. I wonder how you could tell? Hrm.. perhaps by LOOKING AT THE CPU. :) So, lets go back over this. By looking at the CPU you can figure out where it was made (has an effect sometimes on overclockability), what stepping the CPU is and you can possibly get a cooler running CPU. Yeah, looking at the CPU is useless. Good one Hyatt, very amusing. :)
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