CPU installed, but not as fast as it should be

[Peter McCoy]

EDIT: Disregard this post now since I've been able to get the CPU installed now, but if you think you might be able to help then check further down the page. Thanks in advance!

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I've just received an AMD Athlon XP 1600+ Socket A / 462 AX1600DMT3C CPU which I bought on Ebay. Its old, I know, but I'm on a budget and it's just my sisters old PC which I'm messing about on.

I can't see how to remove the heatsink. The lever which runs through the middle of the heatsink won't budge and I don't want to force it too much in case I damage it. I can't seem to find any info on how to get it off - probably because it's so old now. If I do need to give it some welly then fair enough, but I'm not sure. Other video's tutorials seem to suggest you should just be able to lift the lever to unlock it, but this think feels pretty solid in there.

If it helps (dunno of motherboard type is relevant) it's on an ASRock K7VT2.

Any help, or even a possible link, would be greatly appreciated. I've checked AMD's site and can't find any hlep, and all guides online are for heatsinks which do not look like the one I've got here. If needed, I'll see if I can upload photographs, but they may either be too dark or to bright (flash on the metal).

[Morgan Evanar]

Take a picture of it, it's probably pretty easy.

[Peter McCoy]

My dads mate did it. What I was trying was right, I was just unsure about how much force to apply.

[Peter McCoy]

Well after installing the CPU I checked it out and although it should be 1.6Ghz (rated) or 1.4GHz (real), both Windows and Belarc Advisor say it's a 1.04GHz. I've replaced my old one, which I believed to be 1.3GHz and voila - it was. I'm just wondering if there's something I need to do to get this other one up to 1.6GHz.

[Morgan Evanar]

Bus speed.

[Peter McCoy]

Thanks Morg. I mentioned it to my mate and he had a look at the manual for my motherboard online and he said the jumper likely needs changing from FSB 100 MHz to FSB 133MHz. A rough calculation puts it into perspective. If having it on 133 gives it a speed of 1.4GHz (which it should be) then the apparent current setting of 100MHz would approximately equal the 1.04GHz shown in Belarc Advisor and Windows.

1400 / 133 = 10.526 (call it 10.5)

10.5 * 100 = 1050 (1.05GHz).

I'll switch the jumper tomorrow night after work and change the CPU back to the new one and see if it works. No reason it shouldn't in light of what my mate said.

[Morgan Evanar]

Yeah you can always check this stuff with CPU-Z. It shows you the multiplier etc. Very handy when you aren't sure what kind of DIMMs or chipset is being dealt with either. http://www.cpuid.com/cpuz.php

[Peter McCoy]

CHanged the jumper - yay! 1.4GHz :)