MrNick
04-06-08, 20:24
I got a Foxconn P9657AA-8EKRS2H from Aria last year and all went well for a while. Then the CMOS checksum failed.
I replaced the CMOS battery (CR2032) and all was well for a few weeks when the same thing happened again.
Replaced battery... and again.
Searching found that this appears to be a common and known problem. But I couldn't find a solution until I found this thread: http://forum.novatech.co.uk/viewtopic.php?f=4&t=23936
I emailed John Cooper and he kindly sent me instructions showing how to fix the problem. It's moderately scary as it involves removing a surface mount resistor from the motherboard.
Here are his instructions:
Here are the details on how to resolve the P9657AA CMOS Battery Drain
PIC 1 Shows location of offending chip.
PIC 2 shows a close up of Resistor R582, 583 and 584. The chip that causes the problem is R582 and this is the one that needs to be removed. R583 and R584 must remain in place.
Using a pair of needle nose pliers you should be able to grip R582 and with a small light twist just snap it from the board. This should resolve the battery drain issue.
http://kotarski.co.uk/UploadImages/1.jpg
http://kotarski.co.uk/UploadImages/2.jpg
Obviously this is for information purposes only and comes with a big HEALTH WARNING. And if it all goes horribly wrong it's your problem and not mine or John Cooper's. So there!
Nick
PS: I haven't had to change the battery so far (since middle May) and everything still works.
I replaced the CMOS battery (CR2032) and all was well for a few weeks when the same thing happened again.
Replaced battery... and again.
Searching found that this appears to be a common and known problem. But I couldn't find a solution until I found this thread: http://forum.novatech.co.uk/viewtopic.php?f=4&t=23936
I emailed John Cooper and he kindly sent me instructions showing how to fix the problem. It's moderately scary as it involves removing a surface mount resistor from the motherboard.
Here are his instructions:
Here are the details on how to resolve the P9657AA CMOS Battery Drain
PIC 1 Shows location of offending chip.
PIC 2 shows a close up of Resistor R582, 583 and 584. The chip that causes the problem is R582 and this is the one that needs to be removed. R583 and R584 must remain in place.
Using a pair of needle nose pliers you should be able to grip R582 and with a small light twist just snap it from the board. This should resolve the battery drain issue.
http://kotarski.co.uk/UploadImages/1.jpg
http://kotarski.co.uk/UploadImages/2.jpg
Obviously this is for information purposes only and comes with a big HEALTH WARNING. And if it all goes horribly wrong it's your problem and not mine or John Cooper's. So there!
Nick
PS: I haven't had to change the battery so far (since middle May) and everything still works.