I've tried looking through various other posts but no-one seems to quite have the same issue, or they have a working solution which has not worked for me. Recently my PC which has run successfully for several years suddenly stopped working properly. While browsing, the computer suddenly made a device disconnected sound, and the screen went black.
After restarting the PC, POST is always successful, but the monitor loses signal after the windows loading screen and freezes, I am unable to even shut down without forcing reset. However, to further make things interesting, if I instruct the system agent in bios to use the iGPU, the system boots without issue, leading me to suspect a GPU issue, though I'm confused as the POST never indicates any problems. A friend says he suspects possibly issue with the north bridge, but this doesn't seem correct to me, as I understand Ivy-Bridge CPU have all north bridge functions integrated in the CPU and I would figure a CPU test would detect if this is a problem.
Things I've tried/observed so far to figure out if there are issues:
- Temperatures are all good
- Power supply is supplying correct voltages, and should have plenty of capacity for this rig.
- Memtest86 revealed no errors during full test, though did note some memory is vulnerable to high frequency hammer (?)
- CPU test revealed no problems and prime runs without any issues, and without reaching unreasonable temps
- I have cleared all drivers for the GPU using DDU, and the system still fails to boot using the default windows driver as well as the latest GPU driver which I reinstalled.
- Sometimes running programs off the iGPU causes the system to hang, even though they are not intensive programs.
- Completely removing the GPU also allows the system to boot without issue
- The wireless card also uses a PCI slot (Small slot) which appears to be working with no problems.
If anyone has any advice which could help me locate the source of the problem it would be a big help.
Although it would be ideal, I do not have another motherboard I can try to plug the GPU into to test, but could probably ask at a pc repair center if necessary.
My system specs are:
Intel I7-3770k @ 4.2 ghz
Corsair H100 Water Cooler
Sabertooth Z77 Motherboard
32GB DDR3 Ram @ 2400 MHZ
Nvidia GTX 690
Samsung EVO SSD
Corsair 1200AX PSU
After restarting the PC, POST is always successful, but the monitor loses signal after the windows loading screen and freezes, I am unable to even shut down without forcing reset. However, to further make things interesting, if I instruct the system agent in bios to use the iGPU, the system boots without issue, leading me to suspect a GPU issue, though I'm confused as the POST never indicates any problems. A friend says he suspects possibly issue with the north bridge, but this doesn't seem correct to me, as I understand Ivy-Bridge CPU have all north bridge functions integrated in the CPU and I would figure a CPU test would detect if this is a problem.
Things I've tried/observed so far to figure out if there are issues:
- Temperatures are all good
- Power supply is supplying correct voltages, and should have plenty of capacity for this rig.
- Memtest86 revealed no errors during full test, though did note some memory is vulnerable to high frequency hammer (?)
- CPU test revealed no problems and prime runs without any issues, and without reaching unreasonable temps
- I have cleared all drivers for the GPU using DDU, and the system still fails to boot using the default windows driver as well as the latest GPU driver which I reinstalled.
- Sometimes running programs off the iGPU causes the system to hang, even though they are not intensive programs.
- Completely removing the GPU also allows the system to boot without issue
- The wireless card also uses a PCI slot (Small slot) which appears to be working with no problems.
If anyone has any advice which could help me locate the source of the problem it would be a big help.
Although it would be ideal, I do not have another motherboard I can try to plug the GPU into to test, but could probably ask at a pc repair center if necessary.
My system specs are:
Intel I7-3770k @ 4.2 ghz
Corsair H100 Water Cooler
Sabertooth Z77 Motherboard
32GB DDR3 Ram @ 2400 MHZ
Nvidia GTX 690
Samsung EVO SSD
Corsair 1200AX PSU
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