Hello,
In short: brand new assembled computer won't start. I know y'all have a lot of these topics, and I've searched them. But I think my problem is quite weird.
So when I press the power button, the power light turns on for a split second -- barely noticeable -- before shutting off. And it only happens the first time after the power cable is plugged in. Any subsequent button presses will yield nothing, I have to replug the cable to get the split second of life.
I found the handy stickied guide on this forum and followed all of its instructions (found here: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems). No dice.
So I figure it's got to be the PSU (Corsair CX500). But I do the paperclip test and the fan spins -- it works. So I figure it must be the motherboard (Gigabyte GA-970A-UD3P). But during troubleshooting the PSU, I plugged in a different PSU that I know works -- everything turns on just fine.
So it can't be the power switch cable, a short on the motherboard, or the motherboard failing to send the power on signal, otherwise it wouldn't have worked with the good PSU. I already checked to make sure the 24 pin connector is solidly on there, clip and all (hard as it was). The cpu power cable is connected. The graphics card is properly connected. The CPU is properly installed with no bent pins.
Setup:
CPU: AMD 6-core FX-6300 3.5g
Memory: 4Gx2|G.SKILL F3-12800CL9D-8GBXL
Motherboard: Gigabyte GA-970A-UD3P
Graphics card: MSI Radeon 270X
PSU: Corsair CX500
Thank you.
In short: brand new assembled computer won't start. I know y'all have a lot of these topics, and I've searched them. But I think my problem is quite weird.
So when I press the power button, the power light turns on for a split second -- barely noticeable -- before shutting off. And it only happens the first time after the power cable is plugged in. Any subsequent button presses will yield nothing, I have to replug the cable to get the split second of life.
I found the handy stickied guide on this forum and followed all of its instructions (found here: http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems). No dice.
So I figure it's got to be the PSU (Corsair CX500). But I do the paperclip test and the fan spins -- it works. So I figure it must be the motherboard (Gigabyte GA-970A-UD3P). But during troubleshooting the PSU, I plugged in a different PSU that I know works -- everything turns on just fine.
So it can't be the power switch cable, a short on the motherboard, or the motherboard failing to send the power on signal, otherwise it wouldn't have worked with the good PSU. I already checked to make sure the 24 pin connector is solidly on there, clip and all (hard as it was). The cpu power cable is connected. The graphics card is properly connected. The CPU is properly installed with no bent pins.
Setup:
CPU: AMD 6-core FX-6300 3.5g
Memory: 4Gx2|G.SKILL F3-12800CL9D-8GBXL
Motherboard: Gigabyte GA-970A-UD3P
Graphics card: MSI Radeon 270X
PSU: Corsair CX500
Thank you.
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