CPU without cooler: how long for test bench -> post

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i386

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Mar 18, 2016
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I fried a pentium d 930 back in 2006 (or '07) that way...

Your question reached fever dream levels :D
Even for scientific reasons: don't think of touching the cpu lids with your fingers, some cpus generate per mm² more heat than a stovetop (and you can cook a thick ribeye there...)
 

fatherboard

Member
Jun 15, 2025
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anyone who see this here, don't ever try this at home (and not anywhere)
never run a SP5 system without cooler.
I fried a pentium d 930 back in 2006 (or '07) that way...
I think I'd go a step further and say never run any CPU ever without a cooler...
Thank you guys for the crystal clear answers, couldn't be clearer. Much appreciated.
I've done it a few months ago with an AMD Threadripper Pro 64 Cores for a few moments to check if it posts, it did. That's what made me dare ask the question about the SP5. but, noted, don't even think about it.

How about this:
Can I safely run an air cooler without thermal paste?
Since I'm waiting for the AIO cooler (being produced as we speak), I can buy a proper air cooler only for testing purposes.
Applying the thermal paste and removing the AIR cooler later could possibly damage the CPU, break the silicon or stuff like that. Thst's the only reason I'm asking about without paste.

Regardless of my earlier non-sense, even the air without paste, how would you do it? just to test if it posts, perhaps even configure somethings while waiting for the final cooler.
 
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fatherboard

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Jun 15, 2025
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all SP5 cooler i know have thermal paste pre-applied.
So what do I do? these CPUs are rather expensive, I'd like to know early enough if they even work.
Is there a way to safely remove the cooler with thermal paste without damaging the CPU?

I'm happy to get 2 AIO coolers that will stay there till the new AIO is ready in a couple of months. Then use the 1st AIOs as permanent test coolers for the next machine, only if I can safely remove them with paste form the CPUs.
 

Tegan

New Member
Jan 31, 2011
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How did you do it the first time with the Threadripper CPU? Doesn't your success with that CPU suggest that it *might* also work with an EPYC? Is this personal experience more or less informative than advice from internet strangers? If you were confident in running the Threadripper CPU without a heatsink, without first asking here, why didn't you do the same with this one; what changed? If you do try to run these EPYC CPUs without a heatsink and they don't POST, would you conclude that they arrived non-functional, or that they died from being run without a heatsink?
 

kapone

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May 23, 2015
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So what do I do? these CPUs are rather expensive, I'd like to know early enough if they even work.
Is there a way to safely remove the cooler with thermal paste without damaging the CPU?

I'm happy to get 2 AIO coolers that will stay there till the new AIO is ready in a couple of months. Then use the 1st AIOs as permanent test coolers for the next machine, only if I can safely remove them with paste form the CPUs.
1. You're not getting a 160 core CPU. You know it, I know it.
2. I don't know if this is trolling...or you're just bored with nothing to do, or just plain batshit ***zy.

You want to run a $10K 160 core CPU without a cooler to see if it works? Ever heard of something called a warranty? You buy it, and if it doesn't work, the seller/manufacturer replaces it.

I mean, the fact that you had to ask this question...
 
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Tegan

New Member
Jan 31, 2011
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I want to see an EPYC POST without a cooler. Obviously @fatherboard knows what they're doing if they managed to do it with a Threadripper without issue.
Remember, @fatherboard , post a video or it didn't happen.

Come on everyone, chant with me:

Turn it on.

Turn it on.

Turn it on.
 
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TrevorH

Active Member
Oct 25, 2024
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Ever heard of something called a warranty? You buy it, and if it doesn't work, the seller/manufacturer replaces it.
They do if you haven't abused it by running it without an adequate heatsink.
 

autoturk

Well-Known Member
Sep 1, 2022
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Applying the thermal paste and removing the AIR cooler later could possibly damage the CPU, break the silicon or stuff like that.
This has to be trolling. You want to run $20k worth of CPUs, but think an air cooler will damage the CPU when you take it off. You similarly think that running them without a heatsink is okay to even think about? Again, for CPUs that cost $10k each?!
 

T_Minus

Build. Break. Fix. Repeat
Feb 15, 2015
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big`ol chunk of copper sitting on the cpu will give you enough time, im just picturing a 2"x2"x48" piece of copper resting on the cpu as you test :D
 

SnJ9MX

Active Member
Jul 18, 2019
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This has to be trolling. You want to run $20k worth of CPUs, but think an air cooler will damage the CPU when you take it off. You similarly think that running them without a heatsink is okay to even think about? Again, for CPUs that cost $10k each?!
There is a reason OP has limited their profile from being viewable.. tons of posts that could be considered a form of trolling
 
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