DEAD PCI Express Slot?

Hello man

Honorable
Hi all,
My specs are listed in my sig. I am having a MOBO/GPU(?) issue, and I am out of ideas. Recently, I removed the 8800GTS I was using as a dedicated PHYSX processor for my GTX460 768MB. I had noticed it was quite dusty, and so I pulled off its heat sink, giving it a clean, and re-applied thermal compound. I put the card back in, plugged in the supplemental power connector, and fired off my system. It posted improperly. I tested the wires, moved them around and tried again. This time it worked, and I went into the BIOS, booting into start up repair to fix any issues that might have arose from the improper POST. After it completed, I booted windows. Everything went fine, but after the "Starting Windows" screen passed, I lost all monitor out. A simple press of the power button for a proper shutdown did nothing, so I was forced to hard shut down the computer. I tried start-up repair again, and it told me the problem could not be fixed automatically. So I removed the 8800GTS, and attempted to boot. It worked first try, and I was in to the OS. Naturally, this peaked my curiosity, and so I removed the GTX460 and put the 8800GTS in its place, booting with it. It went, but I had odd random ASCI characters as a screen after POST, which quickly vanished. I was left with the normal "Starting Windows" screen, but it had random green dotted lines in clusters across it. I installed the drivers for the card (for some reason they were missing and windows did not try to find them), then restarted. Everything went fine, until I had the same issue with no display out that was the problem in the first place. So I put the 460 back in, this time with a 7800GT in the second slot to test. I booted fine, but windows never recognized the 7800GT. So my question is, is it a bad PCI Express slot?
 

Sakhs Modioths

Reputable
May 26, 2014
16
0
4,510
Well try to clear cmos this may fix it some MOBOS have a falure protection exclusion.
this happened to me with a pretty much old mobo
1i was cleaning the dust of this machine
2i closed the box (forgot to plug the 4 pin molex to the drive)
3i pressed the power button
4i realised i forgot the power connector of the drive so i pluged it in while the pc was on
5 i heard a chack then th pc shuted down since then the mobo didn't recognised the drive yes it found others.
6 i cleared cmos
7 disk found
so the mobo thought it was the drives issue so it was stoping its operation by the time it recognised it
 

Hello man

Honorable


I don't really care about the 7800GT, it was just a test. What I really wan to figure out is the 8800GTS, and why it seems to be unhappy.
 

Sakhs Modioths

Reputable
May 26, 2014
16
0
4,510


well those artifacts are also caused by overvolting while overclocking try to insert the 8800GTS on the second slot without any other GPU
 

Sakhs Modioths

Reputable
May 26, 2014
16
0
4,510
If it still has artifacts the pci-e is not only dead but also provides wrong voltages killing any gpu attached to it.
If it is fine please try to clear cmos (you will lose time and date but you can fix that)
if the 8800GTS still shows artifacts it is dead as a gpu but during the falure voltage data changed on the cmos so by clearing it will be fix however you will have to check it by placing your last gpu 7800gt on it risking to kill it
 

Hello man

Honorable


I cleared the CMOS, it booted, but then lost display. I tried again, and got a blue screen of death, wch mentioned something that sounded like GPU drivers. My next step is to take out the 880GTS, use driver sweeper to remove the drivers, then boot and install. I will let you know if that works.