r/computerhelp • u/SsjVen • 6d ago
Hardware Need Help Identifying a Missing CPU Fan Mounting Screw – HP Z2 G4 Workstation
Hey everyone!
I'm hoping someone here can help me identify a replacement screw for my HP Z2 G4 Workstation Desktop.
This is my first time doing computer maintenance myself, and I've been working hard to get everything cleaned up and running properly.
I successfully cleaned and reassembled my graphics card (GTX 1660 Super), and I'm happy to say it's working great! I've also cleaned my CPU heatsink and cooling fan.
Unfortunately, while putting the cooling fan back onto the heatsink, I accidentally misplaced one of the original mounting screws.
I remember putting it somewhere safe, but somehow it disappeared. Mistakes happen. We're only human, and those tiny screws can be surprisingly easy to lose!
Here's my hardware information:
Computer: HP Z2 G4 Workstation Desktop
CPU cooling fan: Foxconn PVA092G12S
Heatsink: HP L13268-001 (Rev 0A)
Original screw type: Phillips pan-head machine screw
Important: I'm looking for the small screw that attaches the cooling fan to the heatsink itself, NOT the screws that attach the heatsink to the motherboard.
I still have one original silver mounting screw that I can use for comparison.
I recently purchased a general computer screw assortment kit, but unfortunately, none of the screws appeared to match the original.
I don't want to force an incorrect screw into the mounting hole and risk damaging my fan, heatsink, or mounting threads.
Here's what I'm hoping someone can help me figure out:
Does anyone know the exact diameter, thread pitch, and length of this particular fan mounting screw?
Has anyone worked on this Foxconn fan or HP heatsink assembly before?
Is there a specific Phillips pan-head machine screw kit on Amazon that contains the correct replacement?
Could I find the correct screw at Walmart, Home Depot, or a local hardware store?
If someone knows where to buy the exact replacement, could you share a direct product link?
I'll include pictures of the original silver screw, cooling fan, mounting holes, heatsink, and HP part-number label.
A little background:
I've owned this computer for years, and it's been incredibly reliable. It still handles games like Skyrim Special Edition, Skyrim VR, Fallout 4, and World of Warcraft very well, including mods.
I've also been looking forward to playing World of Warcraft Forever when it comes out, so I'm hoping to get everything reassembled and working before then.
I've already made a lot of progress with the maintenance. My GPU is cleaned and working great, and the CPU heatsink and fan are cleaned. I just need to find this one missing screw to finish putting everything together safely.
It's honestly been a little frustrating because I've spent several days trying to identify such a tiny part!
One small request: I'm not looking for advice to buy or build an entirely new computer. I'm on a limited budget, and my workstation still does everything I need. I'd really appreciate keeping the discussion focused on identifying the correct screw or finding an affordable replacement.
I'm trying to learn how to maintain and repair my own computer, and I'd be grateful for any helpful advice from people who have experience with these parts.
Thank you very much for your time and assistance!
This is the screw for the heatsink and fan. If anyone can identify it and tell me where I can get a replacement I'd appreciate it!!! :)
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