Computer won't turn on sometimes

[blargin10]

So 4 years ago I built my computer and it's always had this problem of not being able to turn on somtines. When this happens, the computer turns on, then turns off a couple of seconds later, then turns back on with no usb devices or monitor running. I have to keep turning the computer on and off until usb deivices and monitor turns on. Any idea as to what is causing this bevahior/ what computer part could cause this to happen?

 

[1LiquidPC]

What are your full specs? It's been this way the entire time?

 

[blargin10]

What are your full specs? It's been this way the entire time?

Specs: https://imgur.com/a/ExNJThy https://imgur.com/a/nKCJZDl yes it has been doing this ever since I built the rig.

 

[1LiquidPC]

What power supply are you using? Startup issues can be caused by a faulty one, though strange the issue would be the same after all these years. Have you tried reseating the CPU, cooler assembly, RAM, GPU, cables, ect. in all this time to narrow down an intermittent connection. Tried removing GPU to see if it occurs using only onboard video?

 

[blargin10]

What power supply are you using? Startup issues can be caused by a faulty one, though strange the issue would be the same after all these years.

I believe the psu is CORSAIR CX600M Power Supply ‑ 80 PLUS Bronze ‑ 600W. I have reseated everything before when I got a new motherboard.

 

[1LiquidPC]

It should be ok for a basic system, but still low on the PSU Tier list for overall quality. Just wanted to be sure it's not an "off brand" situation. Do you have any kind of overclock going on for CPU or RAM? Has the BIOS been updated as new releases were made available?

 

[blargin10]

It should be ok for a basic system, but still low on the PSU Tier list for overall quality. Just wanted to be sure it's not an "off brand" situation. Do you have any kind of overclock going on for CPU or RAM? Has the BIOS been updated as new releases were made available?

No overclocking, I will try updating the BIOS.

 

[1LiquidPC]

OK. RAM issues can cause boot problems as well. Any tests with software such as Memtest86?

 

[blargin10]

OK. RAM issues can cause boot problems as well. Any tests with software such as Memtest86?

I have tested the ram with memtest86 and it is ok. I doubt it is the motherboard causing the problem because this rig has had an older motherboard on it with the same problem.

 

[incorrector]

sounds like chipset problem but you have to clear the RAM contacts and mobo RAM pins to be sure.try to clear the RAM contacts using isopropanol alcohol and carefully clear the mobo RAM pins using isopropanol and a a small brush.let it dry

 

[1LiquidPC]

What components have changed over the years and what has stayed?

 

[blargin10]

What components have changed over the years and what has stayed?

The only thing that has changed is the motherboard.

 

[1LiquidPC]

OK. Any way to borrow a PSU?

 

[blargin10]

OK. Any way to borrow a PSU?

Unfortunately no

 

[1LiquidPC]

Is RAM set to XMP if available? If so, I would set to stock DDR3 speeds and disable to test. A possible memory training issue.

 

[blargin10]

Is RAM set to XMP if available? If so, I would set to stock DDR3 speeds and disable to test. A possible memory training issue.

XMP is disabled in the BIOS and I believe the ram is set to stock ddr3.

 

[1LiquidPC]

OK. Running out of ideas. Being it happened with different board eliminates that. At this point though, I think you would need other hardware to test with to figure out the culprit.