Hi everyone,
I'm at a loss here so would like to see if I can get any help or suggestions. This will be a long post, so if you could help, please read everything in case there is a hint to the solution. I will try to keep it as tidy as possible.
Here is the original spec:
MoBo: asrock b85 pro4
Memory: hyperx fury 8gb ddr3
CPU: i5 4460
GPU: GTX 970 stryx DC2OC
1 TB Seagate HDD
1 DVD Rom
550w bronze 80 integra m 550w
Case: Zalman Z9 plus
A few months ago my PC crashed. Would not turn on anymore - kept turning fans and lights on and off every couple of seconds until forcefully turned off (through the I/O switch).
I tried removing component by component but it wouldn't help. I cleared the CMOS by pulling out the battery and after that it started. It ran for 30 or so minutes (I left it on and went away, didn't work on it) before crashing again. After that, I couldn't get it to run. It didn't turn on and off anymore, it stayed on but wouldn't display anything. I tested the PSU (paperclip test), everything was fine. I tried a brand new PSU from work, again without results. I tried new power cable, new DVI, new HDMI, another monitor, nothing. Tried it with all components down to only CPU and RAM. Nothing.
Last week I finally looked for a new MoBo (everyone I know who is even remotely into PC's suggested it was a mobo if the PSU is OK). I bought a used MSI Z97 Gaming 3 in a really clean condition.
Hooked everything up, PC turns on and off again. So with the new mobo it doesn't even stay powered. Again, everything hooked up to just CPU and RAM hooked up - same result. I did notice that if I remove the memory and leave just the CPU (other components can be connected or disconnected), it stays powered on but no display obviously.
I tried my RAM in my work PC - RAM is fine.
So, naturally, I bought another (used) CPU. i5 4690.
Same thing, turns on and off until I disconnect RAM. No matter what else is hooked up.
Right now I have both mobos out of the case and on a wooden table. Since it is a modular PSU, I unplugged every cable apart from the mobo cables.
I have PSU powering only the mobo and only CPU and RAM installed. I even took the i/o switch out of the equation and am turning them on and off by shorting the pins.
Results are like this:
B85 and 4460 - stays powered, no display
B85 and 4690 - stays powered, no display
Z97 and 4460 - turns on and off (stays powered if RAM is removed)
Z97 and 4690 - turns on and off (stays powered if RAM is removed)
I have no idea what I'm doing anymore. I'll try and find a third PSU just to be safe.
Does anyone have another idea or a suggestion I could try?
Cheers and thanks for reading.
I'm at a loss here so would like to see if I can get any help or suggestions. This will be a long post, so if you could help, please read everything in case there is a hint to the solution. I will try to keep it as tidy as possible.
Here is the original spec:
MoBo: asrock b85 pro4
Memory: hyperx fury 8gb ddr3
CPU: i5 4460
GPU: GTX 970 stryx DC2OC
1 TB Seagate HDD
1 DVD Rom
550w bronze 80 integra m 550w
Case: Zalman Z9 plus
A few months ago my PC crashed. Would not turn on anymore - kept turning fans and lights on and off every couple of seconds until forcefully turned off (through the I/O switch).
I tried removing component by component but it wouldn't help. I cleared the CMOS by pulling out the battery and after that it started. It ran for 30 or so minutes (I left it on and went away, didn't work on it) before crashing again. After that, I couldn't get it to run. It didn't turn on and off anymore, it stayed on but wouldn't display anything. I tested the PSU (paperclip test), everything was fine. I tried a brand new PSU from work, again without results. I tried new power cable, new DVI, new HDMI, another monitor, nothing. Tried it with all components down to only CPU and RAM. Nothing.
Last week I finally looked for a new MoBo (everyone I know who is even remotely into PC's suggested it was a mobo if the PSU is OK). I bought a used MSI Z97 Gaming 3 in a really clean condition.
Hooked everything up, PC turns on and off again. So with the new mobo it doesn't even stay powered. Again, everything hooked up to just CPU and RAM hooked up - same result. I did notice that if I remove the memory and leave just the CPU (other components can be connected or disconnected), it stays powered on but no display obviously.
I tried my RAM in my work PC - RAM is fine.
So, naturally, I bought another (used) CPU. i5 4690.
Same thing, turns on and off until I disconnect RAM. No matter what else is hooked up.
Right now I have both mobos out of the case and on a wooden table. Since it is a modular PSU, I unplugged every cable apart from the mobo cables.
I have PSU powering only the mobo and only CPU and RAM installed. I even took the i/o switch out of the equation and am turning them on and off by shorting the pins.
Results are like this:
B85 and 4460 - stays powered, no display
B85 and 4690 - stays powered, no display
Z97 and 4460 - turns on and off (stays powered if RAM is removed)
Z97 and 4690 - turns on and off (stays powered if RAM is removed)
I have no idea what I'm doing anymore. I'll try and find a third PSU just to be safe.
Does anyone have another idea or a suggestion I could try?
Cheers and thanks for reading.