I bought a used Compaq SR5110NX on eBay. It's an Athlon 64 3800+. Motherboard is an MCP61PM-HM. (I have another one just like it which behaves normally.) Everything works fine except the power behaves very oddly. If I press the power button (while it's on) or do a shutdown from Windows, it shuts down as expected. Except that the fans then go to full speed! And furthermore the power button will not turn it on again; I have to pull the power cord out and put it back in, then push the power button, and it will come back on. If I press the "sleep" button on the keyboard (while it's on), it will sleep (although the fans will keep running)--but I can't get it to wake up! I have to pull the power cord again. I've tried a different power supply, with no change.
The eBay seller did warn me about this odd behaviour, but I assumed it was just a bad switch. However, the switch seems to work, because if you press it while the unit is on, Windows gets the message and shuts down. It seems to me to be a BIOS issue. I did compare the BIOS revision with the other identical machine that I have, and this is a later rev. Does anyone think that flashing the BIOS will cure the odd behaviour? Back-revving? Thanks in advance for any helpful ideas! - JR
The eBay seller did warn me about this odd behaviour, but I assumed it was just a bad switch. However, the switch seems to work, because if you press it while the unit is on, Windows gets the message and shuts down. It seems to me to be a BIOS issue. I did compare the BIOS revision with the other identical machine that I have, and this is a later rev. Does anyone think that flashing the BIOS will cure the odd behaviour? Back-revving? Thanks in advance for any helpful ideas! - JR