Can't get new PC to boot

Ish

Ish

Ish

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Joined
11 Jan 2006
Posts
1,815
Location
West Midlands
Hi

I have put together a new PC and can't get it to boot. When I press the power button the red LED for CPU & DRAM light up on the motherboard for like a quarter of second and then go out.

i7-10700
Asrock B560 Pro
Corsair CMK32GX4M2A2666C16 Vengeance LPX 32 GB (2 x 16 GB) DDR4

I know the CPU and ram are working as I tried it in another PC.

What else could be wrong?
 
All connections connected?
Try ram in different slots?
Mobo case/front panel connectors all okay?

It seems silly to do this but plenty of us have forgotten something such as cpu power lead...
 
Bickaxe said:
All connections connected?
Try ram in different slots?
Mobo case/front panel connectors all okay?

It seems silly to do this but plenty of us have forgotten something such as cpu power lead...
Click to expand...

Both power connectors are plugged in. I have also jumped the power switch pins just in case it is a faulty switch.

I borrowed a Asrock B460 board from someone and that did the same thing of quick flash of the LED on the board.

I have tried both the cpu and ram in my other PC which has a Gigabyte B460 board and it powers up.

It probably is going to be something simple but I haven't found what it is yet!

I have also swapped the psu which made no difference
 
Finally worked it out.

On the mobo there is a 8 pin power connector. I was plugging in an 8 pin connector from the psu in to this. I tried plugging in the 2 x 4 pin connectors and everything has started working!
 
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