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Thermal paste

Sean19
By Sean19
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Just now, Sean19 said:

If I don't add enough thermal paste can this lead to the pc turning on but the monitor freezing and the keyboard and mouse not working. Please help. I replaced a i5 to a i9 same socket and everything lg1151

Not having enough thermal paste can lead to higher temperatures, but it shouldn't lead to a non-POST scenario.

What motherboard are you using?

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

mini_cardboard: a 4% keyboard build log and how keyboards work: https://linustechtips.com/topic/1328547-mini_cardboard-a-4-keyboard-build-log-and-how-keyboards-work/

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Posted
2 minutes ago, Sean19 said:

If I don't add enough thermal paste can this lead to the pc turning on but the monitor freezing and the keyboard and mouse not working. Please help. I replaced a i5 to a i9 same socket and everything lg1151

it might come down to mounting pressure or a bad seating of the chip. If you try reseating it and it still has trouble and doesn't post, I would check the socket or pads on the CPU to make sure they are clean. A bad seat or dirty pins/pads can sometimes lead to no-post scenarios. Threadripper chips have that problem a lot for bad seating or incorrect mounting pressure if you don't have the torque wrench provided, so a bad seat causing a no-post isn't unheard of and is probably the best case scenario for you. 

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Just now, Sean19 said:

It a mobo that came with the pc from lenovo 

What i5 CPU did you have before?

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

mini_cardboard: a 4% keyboard build log and how keyboards work: https://linustechtips.com/topic/1328547-mini_cardboard-a-4-keyboard-build-log-and-how-keyboards-work/

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Posted
20 minutes ago, Sean19 said:

If I don't add enough thermal paste can this lead to the pc turning on but the monitor freezing and the keyboard and mouse not working. Please help. I replaced a i5 to a i9 same socket and everything lg1151

You might also be running into validation issues if it's something like a ThinkCenter prebuilt for business. Not all socket-compatible chips are validated for every chipset or board. Riley and Linus ran into a similar issue with the $69 gaming PC with the Extreme Edition CPU they wanted to put in. It was socket compatible, but DELL had never validated that chip for that board.

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8 minutes ago, BiotechBen said:

You might also be running into validation issues if it's something like a ThinkCenter prebuilt for business. Not all socket-compatible chips are validated for every chipset or board. Riley and Linus ran into a similar issue with the $69 gaming PC with the Extreme Edition CPU they wanted to put in. It was socket compatible, but DELL had never validated that chip for that board.

Its a gaming pc from lenovo legion 

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17 minutes ago, Sean19 said:

OK so I put the i5 back into the pc and worked fine and then tried the i9 again but that didn't work.

9900k or 9900ks? most people don't realize you will need a bios update for the ks, some people have had issues with instability due to that. The joys of you being vague

edit: looking at the specs depending on your build the power supply might be a bit on the light side since apparently you could have one of the following. You may be having heavy droop as cpu is loaded a bit during bootup

280 watts, autosensing, 85%
350 watts, autosensing, 85%
450 watts, autosensing, 85%
500 watts, autosensing, 85%

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