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No POST/ No Video - Order Which Components Go Through POST?

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Hi guys, quick question for you all: Just finished a new build, and I'm getting no beeps at post and no video output.

I stripped my system down to 1 memory module, CPU, and CPU Fan.

  • With memory in, there are NO beeps.
  • Without memory, it successfully gives me the no memory beep.
  • With the 4pin CPU 12v UNPLUGGED and NO memory - NO beep.
  • With the 4pin CPU PLUGGED in and with NO memory - There IS a beep.

The motherboard is fine. I just replaced it 2 times. Plus the fact that it beeps when there's no RAM in, makes me think it's fine as well. Rule out the mobo.

So is it:

1.) RAM – With the RAM installed i get no beeps. With no RAM i get beeps.

2.) CPU – It is producing some warmth. It gets mildly warm after powering on for 2 minutes. Could it still be defective?

3.) Power supply – The PSU fans remain on and it's running my case fans, my video card fans, and its blue light stay on. Could it be a faulty PSU?

Or maybe the CPU? I heard if there's no beep then it might be a dead CPU. However if I'm getting the no-ram beep then is my CPU ok?

What's the order that the post goes through? Is my CPU passing and the RAM defective?

Unfortunately this is my only desktop so I can't test components.

Mobo is Asus P5QL Pro, CPU is Intel Q9400, PSU is Rosewill Stallion Series RD500-2DB 500W, RAM is Mushkin 996587

Thanks in advance.

Edited by arh2o, 11 February 2009 - 10:57 AM.

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My first assumption would be bad memory being that when the memory is in you have the problem.. but i'm no expert. I found this A+ certification training page that will help you out with this issue A+ Hardware
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