Hello, it's my 1st post here (long time lurker) and I apologize in advance for the extremely lenthy wall of text that's about to follow. My potato (old but very rarely used) has started acting a bit strange. I have tried to do all that I can (following the usual troubleshooting measures), but to no avail. So any help would be much appreciated.
Components:
AMD Phenom II 550 BE
Asus M4N68T MLE V2
2x 4GB DDR3 1600mhz
Zotac GTX 750 Ti
Corsair 2TB HDD
Antec VP500P (also tested with a 'known good' Corsair VS450)
OS is Win7 64bit Ultimate
Okay, so a few days ago, when shutting down my PC, I noticed that it displayed 'Shutting down' and then the display went off as usual, but I could still hear the hard drive and the fans. I waited around 5 mins (it usually shuts off completely just seconds after the display turns off) and after that I lost patience and held the cabinet's power button to force it to shut down. The next day when I turned it on, the fans, hdd, etc started spinning, but there was no signal on the monitor. I opened the cabinet and refitted the gpu and the dvi-d cable, but still the same thing. Then after taking everything out one by one (RAM, PSU, GPU again, usb devices and even the CMOS battery) and connecting them back, the display came back on and everything seemed normal. Then after using it for a while, I powered it off. At next boot up, I started seeing 'KBC BAT test failed' and 'Fatal error, system halted' and it wouldn't post. Changing the keyboard then fixed that. But next day again the error returned.
Now the computer only boots up when there's no keyboard or mouse connected. And it still shows ne error messages when booting up such as 'Keyboard/Interface error'. And after booting into win7 and then connecting the input devices it says that I have to reboot apply the changes which it didn't do when connecting/disconnecting a usb keyboard/mouse before.
At one point it was also showing me 'CPU Fan error' and 'CPU overvoltage error'. But now that doesn't seem to happen.
My first thought was that it's the PSU, but the problem persists with two known good PSUs. I've tried disconnecting the GPU and using the IGP, and using different ram/ram slots. Haven't tried taking out the cpu/hsf 'cause I don't have thermal paste.
So am I right in thinking that it's the mobo? Or can it be something else?
Components:
AMD Phenom II 550 BE
Asus M4N68T MLE V2
2x 4GB DDR3 1600mhz
Zotac GTX 750 Ti
Corsair 2TB HDD
Antec VP500P (also tested with a 'known good' Corsair VS450)
OS is Win7 64bit Ultimate
Okay, so a few days ago, when shutting down my PC, I noticed that it displayed 'Shutting down' and then the display went off as usual, but I could still hear the hard drive and the fans. I waited around 5 mins (it usually shuts off completely just seconds after the display turns off) and after that I lost patience and held the cabinet's power button to force it to shut down. The next day when I turned it on, the fans, hdd, etc started spinning, but there was no signal on the monitor. I opened the cabinet and refitted the gpu and the dvi-d cable, but still the same thing. Then after taking everything out one by one (RAM, PSU, GPU again, usb devices and even the CMOS battery) and connecting them back, the display came back on and everything seemed normal. Then after using it for a while, I powered it off. At next boot up, I started seeing 'KBC BAT test failed' and 'Fatal error, system halted' and it wouldn't post. Changing the keyboard then fixed that. But next day again the error returned.
Now the computer only boots up when there's no keyboard or mouse connected. And it still shows ne error messages when booting up such as 'Keyboard/Interface error'. And after booting into win7 and then connecting the input devices it says that I have to reboot apply the changes which it didn't do when connecting/disconnecting a usb keyboard/mouse before.
At one point it was also showing me 'CPU Fan error' and 'CPU overvoltage error'. But now that doesn't seem to happen.
My first thought was that it's the PSU, but the problem persists with two known good PSUs. I've tried disconnecting the GPU and using the IGP, and using different ram/ram slots. Haven't tried taking out the cpu/hsf 'cause I don't have thermal paste.
So am I right in thinking that it's the mobo? Or can it be something else?
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