PC wont start up, not sure where the problem is?

Abacus

Abacus

Abacus

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21 Sep 2011
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Hi, looking for some help please.

My pc is about 4-5 years old, nothing has been changed or been added since I built it. All components have been run at stock no oc'n at all.

PC was running fine but I decided to get a new aio coller to give my cpu some better cooling, it was running on the stock amd cooler, and the fan was getting a bit loud.
Removed the fan cables then pulled the cooler out, unfortunately the cpu came out with it. Managed to pry the cpu off with a hairdryer and a thin blade.

Removed the ram to get better access to a couple of pins. Put the new cooler in, mounted the cooler and connected the power cables. The cooler has some rgb features so attempted to attach it to the correct pins. Unfortuantely two pins broke off the motherboard where both the rgb cables fit in, but I am guessing they are not essential and I can always buy a controller later.
Put the ram back in and pressed the power button and nothing happened. The pc was running fine before so wasn't sure where the problem might lie. Its not the power cord nor the psu as I tested both of them. Tried putting the ram in to all the sockets, one stick at time but no difference still wouldnt start. I am guessing that it is likely to be the cpu or the board, although where the board is concerned a desk lamp that is attached to a top side usb is fine suggesting power is getting to the mobo. The motherboard seems to give a white flash when i connect the power sometimes, other times nothing.

After that I am at a loss, I dont have other parts to swap in and out to help test.
Any advice or help would be appreciated. Looked at a few guides and vids but not sure what to do next.

Thanks:confused:
 
Reseat memory again, reset CMOS. If that doesn't work, remount the cooler and once you start feeling a bit of resistance on the screws, turn each one a quarter of a turn and try again.
 
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Assuming you're on AM4 due to the CPU coming out of the socket ?
Try the above, also check you've not loosened any cables whilst tinkering, I'm sure I'm not the only one who has forgot to put the CPU or other cable back in after a build.
High chance its the pins though.
 
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Bit late obviously
But for future reference
Before removing the heatsink
Run the pc for a while to heat it up
Then use a twisting movement to break
The thermal paste suction between the cooler
And the cpu
Instead of just pulling upwards

Pins would be first things I would check
And snapping off some pins from
Rgb connector shouldn't cause an issue
As long as you found them
And they're not lying around on the motherboard
Or fell into gpu etc
Rgb connectors really should be a better design
 
Hi, first off thank you very much for the replies.

I did what you suggested and installed the ram and reset the cmos. Sadly no difference.

However checked the cpu and I had a couple of bent pins, just as you all thought.
Straightened the pins and put in the cooler. Things looked better as the gfx lit up and all the fans were running but no signal getting to the monitor and my mouse, keyboard etc dont light up. Also a long press of the power button doesnt power down the system as it does normally I have to turn off the power on the back which obviously isnt great.

So its progress but not quite there yet.
 
And also ensure that the cooler isn't too tight. What I usually do is install, do what I said above about bit of resistance and a quarter turn on the screws. Then measure temp under load. If it's too hot, then another quarter of a turn on each corner sequentially, so tighten one corner then the opposite corner. Quarter turns until temps are what they should be.

Definitely worth rechecking those pins, I reckon one or two are still not right.
 
Hi, sorry didnt have my pc to allow me to reply sooner.

Tried the battery pull but no change. Removed the cooler again and did indeed find(just :D ) 2 bent pins that required straightening. After fixing them pc started up and is working fine.:)

Thank you SO much for all your help, its been great.

ps if anyone needs has a use for Isopropyl achohol let me know..........I got a bit carried away and order a litre:rolleyes:
 
plenty other people have bent the pins before
just one of those things
just remember in future warm it up
and use a twisting motion
and you should be fine

main thing is you didnt snap any pins
and all sorted in the end luckily
 
Mcnumpty2323 said:
plenty other people have bent the pins before
just one of those things
just remember in future warm it up
and use a twisting motion
and you should be fine

main thing is you didnt snap any pins
and all sorted in the end luckily
Click to expand...
The warming up first is a really good shout to know for next time, makes it so much easier.
 
Thanks again guys. I did attempt to heat up my system before trying to remove the cooler but I think I caused the problem when I lifted the cooler off. A twisting motion would have been a better way to go.

Anyway as you say good to get it sorted, really appreciate the help.
Thank you again folks :D
 
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