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CPU not detected by board?


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My system froze and I restarted to find that the LED never gets by the "CPU detected" LED. The "system startup" LED clears. I have the system OCed to 3000Mhz. I have the CPU at 1.5V and the memory at 3.6V. The load temps approach 60C but I don't believe it ever goes higher. The system froze while playing half-life 2 so I know the system was under stress when it froze.

 

I've tried resetting the CMOS and the Safe Boot jumper but nothing helps. The LED never gets by the "cpu detected" LED. I'm afraid the CPU is fried. Please help!!

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I will try a longer CMOS clear but I don't have another AMD CPU laying around. Is there any way to tell if the CPU is truly fried, like by looking at it after it has been removed? Thank you.

 

Unfortunately it quite difficult since the a64 chips have the heat spreader but you could always try removing it and find out :D

 

For your CPU hanging around 60 for extended times is a bit stressfull and may have popped it :angel: . Does your CPU socket look disfigured? Otherwise try another CPU...

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I took the CPU off and found nothing physically wrong with the CPU pins or the mobo.

 

Since my LED doesn't go past the "CPU Detected" LED, does this narrow the problem to the CPU or possibly memory?

 

A day previous to this problem, I turned my 3.3V rail on the PSU up to 3.76V in order to supply the vdimm with enough voltage to reach a steady 3.6V for my Mushkin Redline XP. The ram is actively cooled with a direct 80mm fan.

 

Is there any chance to problem is due to the increased voltage on the 3.3V rail even though the Mushkins and the mobo can handle it?

 

I don't want to RMA the CPU just yet until I know for sure the CPU is at fault. Thank you much!

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I took the CPU off and found nothing physically wrong with the CPU pins or the mobo.

 

Since my LED doesn't go past the "CPU Detected" LED, does this narrow the problem to the CPU or possibly memory?

 

A day previous to this problem, I turned my 3.3V rail on the PSU up to 3.76V in order to supply the vdimm with enough voltage to reach a steady 3.6V for my Mushkin Redline XP. The ram is actively cooled with a direct 80mm fan.

 

Is there any chance to problem is due to the increased voltage on the 3.3V rail even though the Mushkins and the mobo can handle it?

 

I don't want to RMA the CPU just yet until I know for sure the CPU is at fault. Thank you much!

sounds more like you kicked in the overvolt protection on the psu if you cranked it up that high...or cranking it up that high might have damaged the cpu, memory, motherboard...no real way of knowing without another cpu to test

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I read over the "over voltage protection" on the OCZ Powerstream but it mentions only removing the plug and having it rest for 30 seconds before reconnecting. I turned the 3.3V rail back to the normal 3.3V but nothing changes. I will buy a 939 processor tomorrow and find out if the original CPU was the problem.

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ExRoadie,

 

I will try the proper CMOS clear. I have done the standard CMOS clears a few times but I will try the insert and delete key trick. I will post my results (after the 8 hr CMOS clear if necessary).

 

Thanks.

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Hot diggity dog ExRoadie that did the trick.

 

Can you please explain the significance of that type of CMOS reset versus the standard CMOS clear? What do the insert and delete keys do?

 

Thanks again ExRoadie, you have allowed me to sleep in peace tonight!

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