--- Update 2 ---
I tried enabling the "PEG Force GEN1" feature on the BIOS, but that did not fix the problem.
I removed the CMOS battery to reset it and the problem remains. I still get the 8 beeps and no display.
--- Update 1 ---
I installed a speaker to get beep codes. It played one long beep, 8 short beeps, and a long pause followed by one more beep.
According to the manual, 8 beeps in POST is a "Display memory error (system video adapter)". The troubleshooting instructions are "If the system video adapter is an add-in card, replace or reseat the video adapter. If the video adapter is an integrated part of the system board, the board may be faulty."
I have reseated the card a dozen times now and verified that it works on another device.
Also, I tried removing the only other PCI card - a wireless card plugged into a PCIe x1 slot. It did not fix anything, but I am leaving it out for future tests.
--- Original ---
I recently replaced the graphics card (an ASUS GTS 250) in an old computer with something a bit more modern (an EVGA GTX 670) so it could handle more games. After I made the swap, I was not able to get any display through the card - not even the POST screen.
Mobo: Biostar IH55A-MHS (BIOS rev 927)
CPU: Intel Core i3-540
Graphics: EVGA GTX 670
PSU: EVGA 650 BQ
RAM: 8 GB DDR3
OS: Windows 10 (64-bit)
Is it possible this is due to a PCIe incompatibility? Both the CPU and GPU are supposed to support PCIe gen 2... but I can't think of anything else at this point.
More Background
The computer worked fine with the old graphics card. When it didn't work with the new one, I figured it must be the new graphics card, the BIOS, or the power supply.
I tried swapping the graphics card in my main PC for the GTX 670 and it worked, so it must not be the new graphics card.
I put the old GTS 250 back in and it worked, so I must not have broken the PCIe slot or the motherboard. I then updated the BIOS to the most recent revision from the manufacturer's website (rev 927). I then swapped the cards again and it still didn't work.
I put the old GTS 250 back in, uninstalled the graphics driver, and configured Windows to start in Safe Mode. I swapped the cards again and it still didn't work.
The old power supply - a Logisys PS575XBK - might not have provided enough power (even though it was supposedly rated for 575 W) and it was probably a fire hazard anyways, so I swapped it for an EVGA 650 BQ. Still nothing. I put the GTS 250 back in to verify I didn't miss any connections.
Other Notes:
I tried enabling the "PEG Force GEN1" feature on the BIOS, but that did not fix the problem.
I removed the CMOS battery to reset it and the problem remains. I still get the 8 beeps and no display.
--- Update 1 ---
I installed a speaker to get beep codes. It played one long beep, 8 short beeps, and a long pause followed by one more beep.
According to the manual, 8 beeps in POST is a "Display memory error (system video adapter)". The troubleshooting instructions are "If the system video adapter is an add-in card, replace or reseat the video adapter. If the video adapter is an integrated part of the system board, the board may be faulty."
I have reseated the card a dozen times now and verified that it works on another device.
Also, I tried removing the only other PCI card - a wireless card plugged into a PCIe x1 slot. It did not fix anything, but I am leaving it out for future tests.
--- Original ---
I recently replaced the graphics card (an ASUS GTS 250) in an old computer with something a bit more modern (an EVGA GTX 670) so it could handle more games. After I made the swap, I was not able to get any display through the card - not even the POST screen.
Mobo: Biostar IH55A-MHS (BIOS rev 927)
CPU: Intel Core i3-540
Graphics: EVGA GTX 670
PSU: EVGA 650 BQ
RAM: 8 GB DDR3
OS: Windows 10 (64-bit)
Is it possible this is due to a PCIe incompatibility? Both the CPU and GPU are supposed to support PCIe gen 2... but I can't think of anything else at this point.
More Background
The computer worked fine with the old graphics card. When it didn't work with the new one, I figured it must be the new graphics card, the BIOS, or the power supply.
I tried swapping the graphics card in my main PC for the GTX 670 and it worked, so it must not be the new graphics card.
I put the old GTS 250 back in and it worked, so I must not have broken the PCIe slot or the motherboard. I then updated the BIOS to the most recent revision from the manufacturer's website (rev 927). I then swapped the cards again and it still didn't work.
I put the old GTS 250 back in, uninstalled the graphics driver, and configured Windows to start in Safe Mode. I swapped the cards again and it still didn't work.
The old power supply - a Logisys PS575XBK - might not have provided enough power (even though it was supposedly rated for 575 W) and it was probably a fire hazard anyways, so I swapped it for an EVGA 650 BQ. Still nothing. I put the GTS 250 back in to verify I didn't miss any connections.
Other Notes:
- ■ The case lights come on and blink normally
■ The fans on the CPU, case, power supply, and graphics card all spin
■ The mechanical harddrive spins
■ The CPU runs at a cool 70 degrees Fahrenheit
■ I made sure to use both 6-pin power connectors on the GTX 670
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