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Windows 7: After a few hours, my new PC build decides to stop coming on

24 Jul 2013   #11
Teekay

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by keebsuk View Post
I'm sorry to hear of your problems. Don't worry, you will get it sorted.
Thank you...

Quote   Quote: Originally Posted by keebsuk View Post
When your PC actually works, how long is it before it shuts down?
Each time it shut down (save for the first time) it happened roughly 1-2 minutes after being turned on.

Quote   Quote: Originally Posted by keebsuk View Post
Do you get any error code?
Nothing. Screen just goes black and the PC shuts off. The few times I booted back up, there were no errors that I could see.

Quote   Quote: Originally Posted by keebsuk View Post
How hot is your PC getting prior to shut down?
Not hot at all. Every time I've checked my CPU and MB temps they've been within 5 degrees of 30*Celsius.

Quote   Quote: Originally Posted by keebsuk View Post
Check the event viewer and under "Custom Views-"Administrative Events" what error codes do you get?
I think you've misunderstood - my PC won't turn on anymore, so I can't view that.

Quote   Quote: Originally Posted by keebsuk View Post
Some motherboards are notoriously difficult when only 1 stick of RAM is used. From experience I have always found a pair of matching RAM modules is far better. Can you exchange your 1 stick for a pair of 4GB modules?
Nope.

Quote   Quote: Originally Posted by keebsuk View Post
If you cannot exchange, try your stick of RAM in each slot and see what happens.
No results... same as before:

Standby LED is glowing green when the PSU is plugged in, but any attempt at booting the PC results in nothing. No spinning fan, no other LEDs, no beeps or BIOS screen... nothing.


As it stands, I think I'm about ready to buy a replacement motherboard. I'll check here within the next few minutes for any replies, but then I'm heading out.


My System SpecsSystem Spec
.
24 Jul 2013   #12
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

A couple of thoughts.
Every thing works out of the case but not in the case. That could be the motherboard stand off's are in the wrong location and shorting out the motherboard.
I'm not familiar with your case but I don't think it has a removable motherboard tray. Is that correct?
Next I recommend reading and understanding your motherboard manual. Many new motherboards really don't know what to do with one stick of memory. Never assume where the memory modules go. Install only as per motherboard manual. The first slot closes to the cpu is not always used as a starting place.
Their are many things that can cause this problem. Check and make sure that all connection do not have any side tension on them. The cable when routed should not be tugging on the connection.
My System SpecsSystem Spec
24 Jul 2013   #13
Teekay

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
A couple of thoughts.
Every thing works out of the case but not in the case. That could be the motherboard stand off's are in the wrong location and shorting out the motherboard.
I'm not familiar with your case but I don't think it has a removable motherboard tray. Is that correct?
Next I recommend reading and understanding your motherboard manual. Many new motherboards really don't know what to do with one stick of memory. Never assume where the memory modules go. Install only as per motherboard manual. The first slot closes to the cpu is not always used as a starting place.
Their are many things that can cause this problem. Check and make sure that all connection do not have any side tension on them. The cable when routed should not be tugging on the connection.
Let me be clear: it doesn't work in or out of the case. Plus, I did read the MB manual and I made sure to place the RAM in the correct slot.

But regardless, I've bought a new MB... I'll let you know if I keep having problems.
My System SpecsSystem Spec
.

24 Jul 2013   #14
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Quote   Quote: Originally Posted by Teekay View Post
Well today was interesting...

I unplugged everything and tied another bench test, and to my surprise everything came on. I plugged everything back in, one by one, and it still worked. I finally got it all back into the case, and I decided to turn it on as a quick test. It booted fine, no problems or errors, and all of my devices were detected... but it shut off after about a minute or so.

I unplugged everything AGAIN, and it STILL wouldn't turn on. I tried numerous times and was able to receive a POST screen once, but it shut off once again after about a minute. I've since been unsuccessful in getting it to POST.

I did try to plugin another power supply and it made no difference. As before, the stanby LED turns green on the MB, but nothing boots. I also tried my new power supply on another PC and it works fine over there.
I thought you meant with the board out of the case all was well too. Otherwise, I'd also suspect the board. Been there done that 5-6 times. There was a rash of ASUS board that came with bent pins. Carefully inspect the ones in the new board.
My System SpecsSystem Spec
25 Jul 2013   #15
Teekay

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by Britton30 View Post
Quote   Quote: Originally Posted by Teekay View Post
Well today was interesting...

I unplugged everything and tied another bench test, and to my surprise everything came on. I plugged everything back in, one by one, and it still worked. I finally got it all back into the case, and I decided to turn it on as a quick test. It booted fine, no problems or errors, and all of my devices were detected... but it shut off after about a minute or so.

I unplugged everything AGAIN, and it STILL wouldn't turn on. I tried numerous times and was able to receive a POST screen once, but it shut off once again after about a minute. I've since been unsuccessful in getting it to POST.

I did try to plugin another power supply and it made no difference. As before, the stanby LED turns green on the MB, but nothing boots. I also tried my new power supply on another PC and it works fine over there.
I thought you meant with the board out of the case all was well too. Otherwise, I'd also suspect the board. Been there done that 5-6 times. There was a rash of ASUS board that came with bent pins. Carefully inspect the ones in the new board.
At that time it WAS out of case and worked, but later it wouldn't work whether it was in or out of it.

However, I think it's very very safe to say that my motherboard was the problem. I went through with buying a new one and surprise - everything works perfectly. No issues as of yet.
My System SpecsSystem Spec
25 Jul 2013   #16
madcratebuilder

Win8/8.1,Win7-U64, Vista U64, uncounted Linux distor's
 
 

Glad you have it up and running. Building a new box and getting a defective major component can be very frustrating.
My System SpecsSystem Spec
25 Jul 2013   #17
Layback Bear

Windows 7 Pro. 64/SP-1
 
 

Teekay are you angry at me for my post?
My System SpecsSystem Spec
25 Jul 2013   #18
Teekay

Windows 7 Home Premium 32bit
 
 

Quote   Quote: Originally Posted by Layback Bear View Post
Teekay are you angry at me for my post?
Not at all! Sorry if it sounded like I was.

I really appreciate everyone's help. *If* something goes wrong with this new motherboard (and so far nothing has), I'll be sure to come back, but otherwise it looks like I won't need to return for a while.
My System SpecsSystem Spec
25 Jul 2013   #19
Britton30
Microsoft MVP

Windows 7 Ultimate X64 SP1
 
 

Good news at last.
My System SpecsSystem Spec
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 After a few hours, my new PC build decides to stop coming on




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