Newish Computer Not Posting

Dec 13, 2012
47
1
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#1
Hi all,

My Ryzen 5 1600 computer was working well. I left it alone for 3 months. When I got back, the computer would not post and goes on an infinite reboot cycle. So far I replaced the power supply, memory, motherboard, and graphics card. I unhooked the hard drive to reduce variables. Computer will still not post. Any suggestions?

Specs
Ryzen 5 1600
8x2 GB Crucial Ballistix DDR4 2400
ASRock AB350 Pro4
eVGA 750W G3
RX 580
 

UsandThem

Super Moderator
Super Moderator
May 4, 2000
10,795
547
136
#2
Try clearing your CMOS (and possibly replace the CMOS battery) to see if that fixes your woes.
 
Dec 13, 2012
47
1
71
#3
Hi UsandThem, I tried doing both on the old mobo before deciding to replace it. New mobo exhibited same symptoms.
 
Nov 30, 2016
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#6
If you have tried everything else it must be the cpu I guess. You said you tried it without a disk drive. Did it get to the no boot volume detected message?
 

Ketchup

Elite Member
Sep 1, 2002
14,457
31
106
#7
Either the CPU or something inside your case is causing a short. I recommend running the system outside the case to test before replacing anything else.
I short video if you need:
 

Steltek

Golden Member
Mar 29, 2001
1,636
0
81
#8
Either the CPU or something inside your case is causing a short. I recommend running the system outside the case to test before replacing anything else.
I short video if you need:
You posted while I was typing. I guess demented minds think alike.

If you can, try to pull the motherboard from the case and place it on a piece of cardboard or a static bag. Try starting it up by grounding the jumpers and not by using the case switch to see if you might have a grounding problem with your case.
 
Dec 13, 2012
47
1
71
#9
No video signal, no beeps or error message of any kind. I took the motherboard out for a bench test and place it on an antistatic bag. Shorted power button jumper. No change in symptoms, still no post, no video, infinite reboot cycle. Is it the CPU I guess? I thought CPUs rarely go bad.
 

Ketchup

Elite Member
Sep 1, 2002
14,457
31
106
#10
Yes they rarely go bad but unless you leaving something out that's about all that is left.
 

aigomorla

Cases and Cooling Mod PC Gaming Mod Elite Member
Super Moderator
Sep 28, 2005
17,250
79
126
#11
No video signal, no beeps or error message of any kind. I took the motherboard out for a bench test and place it on an antistatic bag. Shorted power button jumper. No change in symptoms, still no post, no video, infinite reboot cycle. Is it the CPU I guess? I thought CPUs rarely go bad.
This is one of the reasons why i dont buy boards which do not have a LCD diag display.

OK... going from what you listed...

It seems the Board is dead, or the CPU is dead.
No beeps, unless you do not have a speaker connected to the board directly, means the board is not even cycling.

That means its not going past initialization to give you diag beeps. Again you must have a speaker connected to the board via header, and not via rear speaker plug. It should look something like this:



otherwise you wont hear the beeps the board makes.
 
Dec 13, 2012
47
1
71
#12
Looks like it was the CPU. Got my replacement CPU in today. Computer now works. I guess I got unlucky?
 

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