Problem with Athlon XP1800+


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I have a ECS KS57A rev. 1 motherboard with the latest BIOS, 6/26/02, and I installed my 1800+. It 1st showed the speed as 1150mhz, so I went into the BIOS and changed the frequency to 100mhz/133mhz, and it rebooted as usual. The speed still showed as 1150mhz, so I went into the BIOS again and changed it to 133mhz/133mhz, but this time it did not post, a signal didn't go to the monitor. Even when I had only my hard drive and floppy, it didn't post. So I cleared the BIOS and changed it back to 100/133 with the speed as 1150mhz. I have a Allied 400W psu thats on the AMD recomended list. I tried this with my 300W psu but it didn't post on 100/100. 133/133 worked with my other cpu which was a AMD Athlon 1.0 T-Bird. Please give me any suggestions on what I can do to get this to work.

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Originally posted by Fedr0

Somewhere in your motherboard there's a jumper to select the 133FSB speed.

Spot on. On the last system i built, only a couple of weeks ago i had this problem. I removed the jumper from the board and voila. It was up and running full speed. Consult your manual if you are uncertain.

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Originally posted by sabwafare2001

Which jumper?

Well...it will vary, depending on the board. I cannot give you a definitive answer i am afraid. If you have the manual to your mainboard consult it. If not, visit your manufacturers website and see if you can get a schematic which details this. Most companies provide this.

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Another possibility is that your heatsink may be seated incorrectly, causing it to make bad contact with the CPU core. Try to shift it around a bit, that might help.

BTW, are you using any thermal compound on the CPU?

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