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PC Not working after reapplying thermal paste

Just a thought, depending on the socket style, removing a CPU cooler can pull the processor out of the socket. Usually the chip will pop right out attached to the cooler by the thermal compound but sometimes it will unseat it just a little. AM4 would be susceptible to this issue. It's not likely since you already put the cooler back on but it is possible.

Post a pic for us, a many guys on here have been doing this a long time and may notice something you are not seeing.
 
Zareek said:
Just a thought, depending on the socket style, removing a CPU cooler can pull the processor out of the socket. Usually the chip will pop right out attached to the cooler by the thermal compound but sometimes it will unseat it just a little. AM4 would be susceptible to this issue. It's not likely since you already put the cooler back on but it is possible.

Post a pic for us, a many guys on here have been doing this a long time and may notice something you are not seeing.
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With the cooler on?
 
Photo of everything in the case with the side panel removed. Adequate lighting would help.
 
Oh god yes, please: Get some light in there and get us clear pictures that aren't blurry. If you're bad at photos, some good light will help us a ton, to see what we need to (flash isn't always good because of reflections)
 
Mussels said:
At first yes - we might see something obvious like a disconnected cable or loose item.
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My cable management is no good, currently doing schoolwork but when i get the chance i will

Not sure if this helps hopefully it does
 

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The CPU power port on the MB. Your board has an 8pin (CPU_PWR1) and a 4pin (CPU_PWR2).

In the picture, it's hard to see, but it appears you have a 4pin plugged into the CPU_PWR1 spot and a 4pin plugged into the CPU_PWR2 spot. I don't know what PSU model you have, so you could have a dedicated 8pin power connector for the CPU_PWR1 port or you could have 2 - 4pin power connectors. You need to make sure you have the proper cables from your PSU plugged into the 8pin power CPU_PWR1 port.

I'm not sure why you need that extra 4pin power port for the CPU, maybe it's for the higher-end CPUs (such as 3900x) to help deliver enough power....? I haven't read anything specific about the needs for the second power port in the manual, but I didn't search through it that well.

I don't believe you need to have anything plugged into the 4pin (CPU_PWR2) port to power your CPU - some reddit posters have mentioned they do not use the second, 4pin (CPU_PWR2) port, they just plug in the necessary power cable(s) to the 8pin port and their systems run fine.
 
AlexKedz said:
My cable management is no good, currently doing schoolwork but when i get the chance i will

Not sure if this helps hopefully it does
Click to expand...

neatfeatguy said:
The CPU power port on the MB. Your board has an 8pin (CPU_PWR1) and a 4pin (CPU_PWR2).

In the picture, it's hard to see, but it appears you have a 4pin plugged into the CPU_PWR1 spot and a 4pin plugged into the CPU_PWR2 spot. I don't know what PSU model you have, so you could have a dedicated 8pin power connector for the CPU_PWR1 port or you could have 2 - 4pin power connectors. You need to make sure you have the proper cables from your PSU plugged into the 8pin power CPU_PWR1 port.
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Yes, that is the way i has it before and it worked then. don’t know why that is but it is.
 

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AlexKedz said:
Yes, that is the way i has it before and it worked then. don’t know why that is but it is.
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Move the power cabling to the 8pin port. don't use the 4pin. I've seen folks mention the 4pin isn't necessary and it's just a gimmick....but I didn't follow up with any links they provided on where they heard it.
 
Those two fans (top and rear) are backwards, btw.

Can we get a non-blurry pic of the CPU power pins? Most boards work fine with just a single 4 pin, but its worth looking closer at - as mentioned above, you may have it in the wrong 4 pin side (and 8 pin if available should be your first choice)

Everything else looks reasonable, have you tried booting with just 1 stick of ram? If the board detected a hardware change, it may have booted with default settings that dont like your memory.
 
I know this probably isn't your problem, but a couple weeks ago I was working on a person PC, it was dead, nothing happening. Well being in the A/C business I always start at the power box, then move forward, guess what, it was a bad power cord. I have never in my 30 years of troubleshooting PC's seen this issue, of course me like probably everyone else has 20 power cords, one more happy customer, well probably like some of us, not a paying customer. I never charge anyone anything, now if they shove money in my face and threaten me, I'll take it. :D
 
Mussels said:
Those two fans (top and rear) are backwards, btw.

Can we get a non-blurry pic of the CPU power pins? Most boards work fine with just a single 4 pin, but its worth looking closer at - as mentioned above, you may have it in the wrong 4 pin side (and 8 pin if available should be your first choice)

Everything else looks reasonable, have you tried booting with just 1 stick of ram? If the board detected a hardware change, it may have booted with default settings that dont like your memory.
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Will do. I also know the fan is backwards haha

Is this what you were asking for?
 

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AlexKedz said:
Will do. I also know the fan is backwards haha

Is this what you were asking for?
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The arrangement of the 8 pin from the power supply split into two 4 pin connectors over the 8 pin connection on the board , and the 4 pin connection isn’t correct. Try just the 8 pin connection on the board with the split 8pin from the power supply combined into the 8 pin connector.
 
I am starting to think it is an issue with the CPU, I tried putting in an 8 pin adapter, then put in the 4 pin with the 8 pin and nothing worked.
 
AlexKedz said:
I am starting to think it is an issue with the CPU, I tried putting in an 8 pin adapter, then put in the 4 pin with the 8 pin and nothing worked.
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You have another power supply laying around?
 
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It looks like you split the 8 pin and connected them weirdly - they should be joined together, and connect then.

Fix that, then try with just one RAM stick. If that fails, off comes the CPU cooler -
take a photo of the CPU in the socket
clean the paste off, remove it flip it over and take a photo of the CPU pins and the CPU socket (clear pics, no blur!)
 
Mussels said:
It looks like you split the 8 pin and connected them weirdly - they should be joined together, and connect then.

Fix that, then try with just one RAM stick. If that fails, off comes the CPU cooler -
take a photo of the CPU in the socket
clean the paste off, remove it flip it over and take a photo of the CPU pins and the CPU socket (clear pics, no blur!)
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I tried all of those things also it’s a bit late and the CPU pins are not bent or broken i checked multiple times
 
pics are for us to see what you've missed - have you changed the 8 pin connector yet?
 
AlexKedz said:
I tried all of those things also it’s a bit late and the CPU pins are not bent or broken i checked multiple times
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You said you tried an 8 pin adapter and then the 4 pin, you didn't say if you tried the 2 x 4 pin plugs together in the 8 pin socket.
 
I don't know why some users suggest it could be a PSU fault. Please remember the PC was working until the OP decided to change the thermal paste.

EDIT: If the PC is coming on but no boot i would just try booting with less ram installed. Try just one stick of memory.
 
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delshay said:
I don't know why some users suggest it could be a PSU fault. Please remember the PC was working until the OP decided to change the thermal paste.
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I suggested that, because I’ve personally seen PSU’s fail for no reason at all in my past experiences. In troubleshooting most all electronics, I personally always start at the beginning of the power input. Yes, probably not his issue, but it doesn't hurt to start there, and rule that out. I guess we all troubleshoot differently, when someone brings me a dead PC, the first thing I grab is another power supply.
 
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Isn't the 8 pin on the left and 4 pin sup on the right?

Yup, 8pin should be plugged into the left cpu voltage connector.
 
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Hi,
4 pin is optional but 8 pin has to be filled first.
Wouldn't call additional 4 pin a gimmick though it's for additional power for overclocking which is no gimmick it's good clean fun :-)
 
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