Question Crazy temperature jumps with a used 9700k ?

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ASonic

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Dec 31, 2013
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Hi,

I have an Asus H310M-E motherboard , which had a 8400 i5 installed on it, and I didn't want to change the motherboard , so I decided to get a 9700k CPU to replace the older one. Ordered used from ebay , 100% rated seller. So it has arrived, took it to the tech center. The guy, installed it with my old fan and it was overheating like crazy so we thought I needed a new fan, I bought a 100 watt one, he installed it, and the temperature is still jumping like crazy. From 70 to 100 then down to 80 and so on. The radiator itself is cold and no hot air comes out of the case. The motherboard does get heated a lot at the spot though. The tech is suggesting the seller sold a broken CPU, but the seller has 100% rating and says they've sold thousands of CPU's before with no issues like that. What could be the case here? My tech says it can be faulty CPU that is heating inside. The issue was a problem with both coolers, old and new. How dangerous is it to keep using it like this, even for a couple days until I decide if I should return it or not?

Thanks
 
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You would do good if you went with a Z series(370/390) motherboard with a beefy VRM heatsinked area to pair with that unlocked K suffix processor. You should also keep in mind that the unlocked processors don't come with a boxed cooler, since people who buy an unlocked processor get a beefy aftermarket cooler which also helped Intel negate some expenses during packaging.

Just an FYI, the board you currently have is meant to be an entry level board to pair with locked processors.

Please list the specs of your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Since you preformed an upgrade, we'll be seeing a before and after of your specs.

How dangerous is it to keep using it like this, even for a couple days until I decide if I should return it or not?
If you want a new system, you're headed down the right path. If I were you I'd protect whatever investments you've made on your build thus far.
 
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Lutfij said:
You would do good if you went with a Z series(370/390) motherboard with a beefy VRM heatsinked area to pair with that unlocked K suffix processor. You should also keep in mind that the unlocked processors don't come with a boxed cooler, since people who buy an unlocked processor get a beefy aftermarket cooler which also helped Intel negate some expenses during packaging.

Just an FYI, the board you currently have is meant to be an entry level board to pair with locked processors.

Please list the specs of your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Since you preformed an upgrade, we'll be seeing a before and after of your specs.

How dangerous is it to keep using it like this, even for a couple days until I decide if I should return it or not?
If you want a new system, you're headed down the right path. If I were you I'd protect whatever investments you've made on your build thus far.
Click to expand...
Hi, thanks for quick reply. If I wanted to change the motherboard, I'd have gotten a newer CPU with it. So for now the situation is this. There's not really a before/after thing. I just added a CPU and that's all.
 
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ASonic said:
The guy, installed it with my old fan and it was overheating like crazy so we thought I needed a new fan, I bought a 100 watt one, he installed it, and the temperature is still jumping like crazy.
Click to expand...
What cpu cooler?
Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)

If you're using Intel stock cooler, then most likely is is improperly installed.
Black push pins need to be turned to specific orientation, when you reinstall the cooler after it being removed.

And 100W TDP cooler is not enough for 9700k.
It requires minimum 120W TDP cooler (more like 150W TDP).
 
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SkyNetRising said:
What cpu cooler?
Can you show a photo of your system with side panel removed?
(upload to imgur.com and post link)

If you're using Intel stock cooler, then most likely is is improperly installed.
Black push pins need to be turned to specific orientation, when you reinstall the cooler after it being removed.

And 100W TDP cooler is not enough for 9700k.
It requires minimum 120W TDP cooler (more like 150W TDP).
Click to expand...
Hi, I'll try to upload soon, but the cooler is https://www.deepcool.com/products/C...le-Tower-CPU-Cooler-1700-AM5/2022/16203.shtml this one. Can this issue alone cause it to jump like that? The thing is that the sink itself is cold, seems like transfer isn't happening?
 
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mdd1963 said:
An 8400 was known to throttle, or early so, using it's own stock supplied Intel fan/heatsink..

Care to guess how well it will cope with the 9700K? :

Hint: you see the results, high temps; fan/heat sink completely inadequate.
Click to expand...
it's not the stock heat sink, I left a link with the new cooler. I read that VRMs on my motherboard aren't good enough for 9700k. So I just don't know at this point, if it's incompatible and needs to be returned/sold, OR if its a heating issue that can be resolved. Please help
 
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SkyNetRising said:
Still too weak.
Look for 4heatpipes/120mm fan minimum.
Deepcool Gammaxx 400 - for example. Or better.
Click to expand...
Thanks, so you think that is the issue and not heat transfer? Cause the heat sink itself is super cold. If it was the cooler issue, wouldn't we get a heated up heat sink and hot air blowing out of the case ? the only thing that gets heated is the mainboard and the cpu itself.
 
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ASonic said:
Thanks, so you think that is the issue and not heat transfer? Cause the heat sink itself is super cold. If it was the cooler issue, wouldn't we get a heated up heat sink and hot air blowing out of the case ? the only thing that gets heated is the mainboard and the cpu itself.
Click to expand...
That AG200 is right on the edge of able to cool a 9700k, probably fail to cool it in bad vented case, Yeah you do want something a little more to keep temps in check, I just sold a 9700k with a old Coolermaster Hyper 212 and it did alright, temps did still get to 80C at stock in a Q300L, known for not great air flow so.
 
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Yea the AG200 is not enough cooler, for that CPU. I would go with at least something like a Thermalright Assassin King. Also make sure you are doing a good clean and fresh CPU paste application, when changing coolers.

PCPartPicker Part List

CPU Cooler: Thermalright Assassin King SE ARGB 66.17 CFM CPU Cooler ($19.29 @ Amazon)
Total: $19.29
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2023-12-20 17:59 EST-0500
 
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ASonic said:
Thanks, so you think that is the issue and not heat transfer? Cause the heat sink itself is super cold. If it was the cooler issue, wouldn't we get a heated up heat sink and hot air blowing out of the case ? the only thing that gets heated is the mainboard and the cpu itself.
Click to expand...

Certainly the heatsink should be hot if it was being overwhelmed, assuming heatsink has proper/even contact with CPU's heatshield, a thin layer of thermal compound, an of course, no sticker inadvertently left on bottom of heatsink, etc... :)
 
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DSzymborski said:
So far, the likeliest is improper installation of the cooler. It's a simple physical process and if it's installed correctly, it *will* transfer heat.
Click to expand...
its not the case, i've been to second service center today, they all install it properly and it works on my previous CPU as well, so its not that. They say could be a problem with the updated bios and can try to downgrade it. Another case could be sensor faulty on CPU.

The question is this now: If it doesnt change, do I risk anything running that CPU like that? I don't mind if it gets fried (it doesnt even throttle at 100 degrees or shut down), but is it possible for motherboard to get damaged? Could the voltage issues be a problem? I'm kind of lost with this
 
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SkyNetRising said:
You said your cpu was bought as used.
May be it has been delidded before and improperly reassembled after that.
Now heat transfer from cpu die to heat spreader is compromised.

If cpu is overheating constantly, it can not be normally used.
Click to expand...
it doesn't show any signs of that, the seller has 100% rating on ebay and selling since 1998. That would be quite weird if he didn't run any tests before selling. But everything is possible. I'm just not sure if its actually overheating or if its the sensors lying. Cause there's no throttle, no shut down, no blue screens, just jumping allover the place.
 
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bill001g said:
So if this will fit in your case buy this instead. It is cheaper and is one of the top rated coolers. It can even cool 13700k if you leave the power limits at stock settings

https://www.amazon.com/Thermalright-Peerless-SE-Aluminium-Technology/dp/B09LGY38L4
Click to expand...
I think it's too big , Deepcool 400 barely fit my case. https://forum-en.msi.com/index.php?threads/using-i7-8700-processor-with-h310m-motherboard.380579/ Also found this thread, if my mainboard is so underwhelming, will the cooler make it safer to use at all? Or will i risk burning it regardless? And any tweaks i can do to prevent Motherboard damage?
 
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Maybe I should not have been so general. The peerless assign is only 2mm taller than deepcool 400. More the issue is one of the fans overlaps the memory. If you have very tall memory you might have to offset the fan. The other issue is on some small motherboards the vrm heatsinks can conflict with the fan. Not having vrm heatsinks solves that at least.

In general if a chipset is actually rated to work with a certain cpu the manufacture of the motherboard will have designed it so it will not overload the vrm or other components.
You would think they just would not update the bios to include support of cpu chips that were not compatible that come out later.

Mostly the VRM issue is related to overclocking. This is why even if you were to buy a "K" series intel cpu if you do not actually buy a motherboard with a chipset designed for it you can not use the overclocking options.
 
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bill001g said:
Maybe I should not have been so general. The peerless assign is only 2mm taller than deepcool 400. More the issue is one of the fans overlaps the memory. If you have very tall memory you might have to offset the fan. The other issue is on some small motherboards the vrm heatsinks can conflict with the fan. Not having vrm heatsinks solves that at least.

In general if a chipset is actually rated to work with a certain cpu the manufacture of the motherboard will have designed it so it will not overload the vrm or other components.
You would think they just would not update the bios to include support of cpu chips that were not compatible that come out later.

Mostly the VRM issue is related to overclocking. This is why even if you were to buy a "K" series intel cpu if you do not actually buy a motherboard with a chipset designed for it you can not use the overclocking options.
Click to expand...
I get it, but I'm not overclocking it and it's still hitting 100 degrees on full load with a Deepcool 400. Would a fan upgrade change anything? I'm afraid to damage the motherboard, don't care if the cpu will die or not at the moment..
 
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The cpu will actually reduce its power consumption when it hits it thermal limits so it actually put slightly less stress on the motherboard. Its been a while since I looked at the older cpu details. Things like a 13900k intel says can run at 100C constantly. It will reduce it clock a bit to prevent it from going above but for people that want the absolute maximum performance set the power limit to unlimited and it will hit 100c even on many water coolers.

Its hard to say the cooler you have shouldn't have a issue. The specs say your cpu is less than 100 watts, since you can not overclock it on a h310 board. The g400 says it is rated to 200 watts so even if they lie a bit you should still be good.

All I can think of is the cooler is mounted wrong or the mount is somehow defective.

I would run hwinfo64 and check the obvious to be sure it really is a 9700k. Then check the numbers to see what the clock rates etc are set to and make sure that they are defaults. Not so much a issue with a low end chipset like a h310 but many motherboard makers set overclock values by default on z series chip sets.

You should also be able to see if the chip is going into thermal limits...which means it won't burn itself up. Also it would be interesting if it was only some cores that overheat that tends to be bad thermal paste.
 
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