CPU overheating. Disable OC.
CPU overheating. Disable OC.
I just checked the BIOS and found an over temperature warning at 89 degrees. I’m not sure if the OC is turning it on automatically. What should I do?
The 2700 RPM seems acceptable, making it unlikely the issue is due to trapped air—though it was still worth a shot. I recommend attempting to remove the pump assembly, cleaning both the CPU and cooler with isopropyl alcohol, then reapplying thermal paste and reinstalling the cooler. You'll need new thermal paste since using the original after removing the cooler will reduce cooling efficiency. Have you adjusted any parameters in the Extreme Tweaker settings within BIOS? Those are where the overclocking options reside; unless everything is set to safe defaults, consider loading optimized defaults to reset all configurations.
When using BIOS, attempt to "Load Optimized Defaults", save, and reboot. Observe the temperatures.
Additionally, consider whether you recently added the ASUS cooler or moved your PC around. With those conditions, it's possible the unit isn't properly seated or air is obstructing the pump. I moved my AiO raditor earlier from the front to the top of the case, but left the pump assembly untouched. It had been functioning well until then.
When I started my PC, I received the same warning you mentioned—same motherboard and CPU, 9900K temperature spiking to around 90°C. I also observed that the AiO pump RPM was significantly higher than expected at about 3200 RPM (the pump is usually capped at 2700).
I suspect air might be trapped inside the pump. I disconnected my PC and gently shook the case in various directions, almost flipping it over. After reconnecting everything, temperatures returned to normal, confirming the air issue.
EDIT: If you continue experiencing overheating alerts after loading optimized defaults, it may be necessary to reinstall the ASUS cooler. Ensure it's seated correctly and has good contact with the CPU heat spreader. Consider removing the thermal paste and reapplying it.
So I tried adjusting it, but it didn't work. Still at 89 degrees. The aio pump is running at 2700 rpm. I'm considering removing the cooler and applying some paste to it. It might have come with a paste block, and maybe I misplaced it too. I plan to try again tomorrow. I've been working on fixing it for about 5 hours and don't want to make any big mistakes.
The 2700 RPM reading seems plausible, so I’m unlikely it’s just trapped air—but it was still worth a shot.
You might want to attempt removing the pump assembly, cleaning both the CPU and cooler with isopropyl alcohol, then reapplying thermal paste and reinstalling the cooler.
New thermal paste is necessary here, since you shouldn’t reuse the paste already applied after the cooler has been taken out, or cooling efficiency will drop.
Have you adjusted any parameters in the Extreme Tweaker settings within BIOS? Those are where the overclocking options reside; unless everything is set to safe defaults or defaults, consider loading optimized defaults to reset all configurations.
You can preserve your current settings under User Profiles before applying defaults, allowing you to reload them easily once you confirm no hidden overclocking is active (the system will prompt you to disable OC even if you’re not actively increasing performance).
I haven't adjusted any settings myself. The OC settings are set to auto. I attempted a reset to default but didn't make any changes. I believe I should remove the thermal paste and add more as instructed. I plan to try this tomorrow and let you know the outcome. By the way, do you need to apply more of the paste that came with the cooler? Isn't the included paste sufficient?
Oh sorry, I assumed the thermal paste was pre-applied to the pump assembly - but if it was included seperately, there should be sufficient for a new aplication. So If that's the case, you are good to go
😉
Make sure you thighten any screws in a criss cross pattern so you apply even pressure across the cooler and CPU for the best possible thermal transfer.
EDIT:
On a side note, you should change the following setting to prevent your 9900K from power throttling on this board.
Not because the board isn't good enough, but ASUS has chosen to stick very closely to Intel's 95W TDP specification, which means the 9900K CPU will power throttle, no matter how good hardware you have.
The setting is called
"CPU Current Capability"
and is found under
"External Digi+ Power Control"
in the
"Extreme Tweaker menu"
.
It should be set to
maximum
, which is
140%
(unless you are on an old BIOS version, in which case it goes all the way to 170% - 140% is sufficient)
This is a safe setting, which is not to be confused with overclocking. It will not negatively impact your CPU or anything else, but it will allow your CPU draw the needed wattage to run at 4700MHz (all core) continously without power throttling to stay at 95W TDP.
If you haven't already, you should also enable XMP for your RAM, and select
"Yes"
when you are asked if you want to allow ASUS to set some tweaked settings for best overall performance.