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Computer won't post, help!

Gesus
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I had a issue with my PC losing power, I found spots of corrsion on the motherboard and the outside of the PSU. I ordered a new case, motherboard and PSU.

 

I have all the new bits, put it together and when I hit power it turns on for a few seconds then turns off, after a second it then turns back on the whole process repeats.

 

I noticed some red LEDs on the motherboard first the CPU light flash's red for 0.5-1 sec then the goes off, then DRAM light goes for about 2 sec then it goes off then the vga light goes on for a instant before the whole thing powers off.

I have 2 sticks of RAM I have tried running with both sticks individually in all slots.

 

I live in a small town and don't have anyone to borrow parts off for testing.

 

Really don't want to fork out for a new GPU or CPU without being fairly certain the old one is buggered.  

 

Motherboard is H370 Aorus

 

Please help?! Anything else I could try?
 

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Are the motherboard standoffs properly installed?

M.S.C.E. (M.Sc. Computer Engineering), IT specialist in a hospital, 32+ years of gaming, 20+ years of computer enthusiasm, Geek, Trekkie, anime fan

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50 minutes ago, Gesus said:

I had a issue with my PC losing power, I found spots of corrsion on the motherboard and the outside of the PSU. I ordered a new case, motherboard and PSU.

 

I have all the new bits, put it together and when I hit power it turns on for a few seconds then turns off, after a second it then turns back on the whole process repeats.

 

I noticed some red LEDs on the motherboard first the CPU light flash's red for 0.5-1 sec then the goes off, then DRAM light goes for about 2 sec then it goes off then the vga light goes on for a instant before the whole thing powers off.

I have 2 sticks of RAM I have tried running with both sticks individually in all slots.

 

I live in a small town and don't have anyone to borrow parts off for testing.

 

Really don't want to fork out for a new GPU or CPU without being fairly certain the old one is buggered.  

 

Motherboard is H370 Aorus

 

Please help?! Anything else I could try?
 

Have you remembered to install ALL necessary power connectors? Could sound like a component needs more power than it gets

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Have you tried running without the GPU?

QUOTE ME IF YOU WANT A REPLY!

 

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2 hours ago, Gesus said:

I had a issue with my PC losing power, I found spots of corrsion on the motherboard and the outside of the PSU. I ordered a new case, motherboard and PSU.

 

I have all the new bits, put it together and when I hit power it turns on for a few seconds then turns off, after a second it then turns back on the whole process repeats.

 

I noticed some red LEDs on the motherboard first the CPU light flash's red for 0.5-1 sec then the goes off, then DRAM light goes for about 2 sec then it goes off then the vga light goes on for a instant before the whole thing powers off.

I have 2 sticks of RAM I have tried running with both sticks individually in all slots.

 

I live in a small town and don't have anyone to borrow parts off for testing.

 

Really don't want to fork out for a new GPU or CPU without being fairly certain the old one is buggered.  

 

Motherboard is H370 Aorus

 

Please help?! Anything else I could try?
 

Similar issue happened with one of the PC at work, PC kept turning off and on. I just left it that way and it booted itself after a while. First I thought it was PSU issue but even after replacing..... it was doing that. 

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16 hours ago, Fiskelord said:

Have you remembered to install ALL necessary power connectors? Could sound like a component needs more power than it gets

I have a EVGA 650w should be plenty of power.  

 

Graphics card has all the slots are plugged in.  All the squares and rounded bits matched. (3+4)

 

CPU power has a 2+2 the first one the patterns match the 2nd one they don't, I looked on line and it said only the 1st is required the 2nd is for extreme overclocking.    I have tried just plugging in the first and tried having both plugged in, same result.

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