Motherboard: Asus P5W DH
Memory: F2-6400PHU2-2GBHz
Processor: Core2 Quad Q6600
I built this machine up in October 2007 and it's worked quite well under XP Pro with everything stock and no overclocking. I did have to set the RAM voltage at 2.1V though before I could get several hours error free runs on memtest86+.
A couple of days ago I turned the computer on one afternoon and it wouldn't POST. So after trying to get the system to start up several times I pulled the AC plug off the back and removed the case panel to look things over. I reseated the the video card, checked all the cables, and tried to power up again but still no POST. The MB power light was on so I checked a few of the voltage lines on the power supply (Corsair 620W) and the 12V and 5V lines all appeared normal. I powered down again, reseated each of the two RAM chips and after powering up this time the system completed POST and XP booted normally. So after letting it run for an hour or so I shut it back down.
The next morning there was a repeat performance of the "no POST" situation, ARRRRrrrrg! Well, I knew where to start this time. I powered down and reseated the two RAM chips just as I had before and powered up ... still no POST. So after a couple more tries I pulled the stick at socket DIMM_B1 to try booting on the single stick at DIMM_A1. Again, no POST. I then replaced the stick at A1 with the one I had pulled from B1 and the machine booted.
After seeing the box running on that particular single stick I tried replacing it with the one that wouldn't POST singly the first time and verified that stick still wouldn't let the machine do the POST. So now for a couple of days I've had this machine limping along on the single 1GB stick w/o any other changes.
Any suggestions for anything else I might need to do to verify the problem here? I purchased the RAM NewEgg.
Regards, Charles
Memory: F2-6400PHU2-2GBHz
Processor: Core2 Quad Q6600
I built this machine up in October 2007 and it's worked quite well under XP Pro with everything stock and no overclocking. I did have to set the RAM voltage at 2.1V though before I could get several hours error free runs on memtest86+.
A couple of days ago I turned the computer on one afternoon and it wouldn't POST. So after trying to get the system to start up several times I pulled the AC plug off the back and removed the case panel to look things over. I reseated the the video card, checked all the cables, and tried to power up again but still no POST. The MB power light was on so I checked a few of the voltage lines on the power supply (Corsair 620W) and the 12V and 5V lines all appeared normal. I powered down again, reseated each of the two RAM chips and after powering up this time the system completed POST and XP booted normally. So after letting it run for an hour or so I shut it back down.
The next morning there was a repeat performance of the "no POST" situation, ARRRRrrrrg! Well, I knew where to start this time. I powered down and reseated the two RAM chips just as I had before and powered up ... still no POST. So after a couple more tries I pulled the stick at socket DIMM_B1 to try booting on the single stick at DIMM_A1. Again, no POST. I then replaced the stick at A1 with the one I had pulled from B1 and the machine booted.
After seeing the box running on that particular single stick I tried replacing it with the one that wouldn't POST singly the first time and verified that stick still wouldn't let the machine do the POST. So now for a couple of days I've had this machine limping along on the single 1GB stick w/o any other changes.
Any suggestions for anything else I might need to do to verify the problem here? I purchased the RAM NewEgg.
Regards, Charles
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