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- HP Community
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- Desktop Hardware and Upgrade Questions
- HP Elitedesk 800 G1 TWR - cpu cooling upgrade options

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01-19-2025 06:15 AM
Hey, a few days ago I changed the CPU from an i5-4590T to an i7-4790K, everything works as it should, but in games I have temperatures of 80+, I was thinking of drilling a hole in the side and putting a fan right in front of the processor to blow cold air. Does anyone else have any other ideas on how to improve cooling on this computer? I looked at some other fans, but HP seems to have some non-standard placement of the CPU FAN pins. I have such a cooler now https://www.ebay.com/itm/284376390057 and I used Grizzly Kryonaut thermal paste. I would be very grateful for any advice.
01-19-2025 11:28 AM - edited 01-19-2025 11:29 AM
You went from a 35 watt CPU to an 88 watt one. That fan on eBay is not adequate for 88 watts, you will need an aftermarket cooler for an LGA1150 socket (in my opinion).
That being said, our upgrade expert @NonSequitur777 was able to add a fan as shown here
I recommend his fan more than this one.
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it
01-19-2025 12:00 PM
Yea, the OP should indeed copy what I did to my HP EliteDesk 800 G1 TWR, and use a beefier cooling fan, such as this 4-pin PWM 0.90A 9025 fan as seen in this eBay-US listing: https://www.ebay.com/itm/325999519930?_skw=9025+4-pin+PWM+cooling+fan&itmmeta=01JHZYPZ9BFG9NMV5Y0QJX....
An i7-4790K is a remarkably well-performing gaming processor, but it isn't called the "Devil's Canyon" for nothing!
Kind Regards,
NonSequitur777
01-19-2025 12:09 PM
So if I add cooler like this, will it cool down my temperature a bit? Because it's pretty hot. I bought M2 to PCIe adapter and
want to buy new PSU ,later new gpu but biggest problem is to keep cpu on normal temps.
But thank you for respond.
01-19-2025 12:12 PM
To keep the CPU from overheating you can temporarily set the percent processor speed to %99
this will keep it out of turbo mode which can make a huge difference in temperature.
Enter the phrase 'edit power plan' in the window search box
Then select the 'Advanced' tab
To keep the CPU from overheating , consider
using %99 instead of %100.
if this is a gaming system then the game hub overrides the power setting.
Make the change in the game hub.
Verify CPU speed using this tool (CPU-Z)
You might be able to check for GPU/CPU temperature problems using this tool (GPU-Z) and selecting 'sensors';
Thank you for using HP products and posting to the community.
I am a community volunteer and do not work for HP. If you find
this post useful click the Yes button. If I helped solve your
problem please mark this as a solution so others can find it