Alas, same problem here.
This is my fathers PC, and I am house sitting for him. Last night, was listening to videos on Youtube on his system, no issues.
This morning, I go to put my 8800GT in his system to perform some testing, and voila, I get this over current error. Exasperated, I have searched these forums, and others for a solution. I have moderate PC knowledge, so many of these "fixes" were not outside of my ability.
Up until this post, I have:
1. Removed the CMOS battery for 15 minutes and reinstalled. I now have a CMOS checksum error also.
2. I did coincedentally find a jumper floating around in the bottom of the tower. This motherboard ( P5L-MX ), has 3 areas for USB Power. One is the default 1234, up near the top of the mobo. the second is in between the two PCI slots, label interestingly enough WIFI/USBPWR56. The last is by the botom of the motherboard, which is labeled USBPWR78 and connects to the front USB panel on the tower. I reconnected this stray jumper to 5/6 in the 1-2, 2-3, and 3-4 positions to no avail. The weird thing about that series of jumper pins, is that it is a 5x4 setup. I lost my manual ( argh ), and parallel to the 5 pins it says WIFI. Parallel to the 4 pins, it says USBPWR56. That bottom row is where I tried the jumper configurations. I tried removing the front panel USB wires ( USBPWR78 ) that go to the motherboard as well. I tried also playing with the USBPWR12 in different jumper configs as well. None of these attempt got rid of the error message.
3. I put his video card back in, and took mine out, no go on that attempt.
4. I downloaded an earlier bios revision and hooked up a floppy drive and a disk with bootable files on it. I used the method a gentleman listed above to get past the error by hitting F2. Everytime i hit F2 in that spot, it takes me to the error beeps and the message immediately. That being said, I cannot flash the bios to an earlier revision. The current revision I am using, is the one that came with the board, 1004.
I am so frustrated, that I am about to just buy a new damned board. I can get the same board for $35 new. It irks me that the simple switch of a video card, with safety precautions taken, could lead to such an issue.
Here is hoping that one of you techs can lead me to a solution that can help me before i go down that route. I did disconnect all of the USB devices except the mouse as well. My father has a 250GB extrnal HDD, and while it isnt connected, I notice that post seems to want to look for USB mass storage devices to which it finds 0.
I am using one stick of PC-5300 OCZ Ram as well. I had both 2GB stick in dual channel mode, but I took one out for testing, and it was working fine last night with the one stick.
Please help.
