Looking for CPU and case fan size and if anyone knows compatibility

[briznasty]

Product: OMEN By HP 875-1000 Obelisk Desktop PC (5MG70AV)

Operating System: Microsoft Windows 10 (64-Bit)

Just looking to see if anyone knows what fans are compatible with my PC?

I would like to get some Noctua fans if anyone can point me to compatibility there.

[itsmyname]

@briznasty -- is this your computer: OMEN by HP 875-1000 Obelisk Desktop PC (5MG70AV) | HP® Customer Support

One of the available "manuals" could be a "Servicing & Maintenance Guide", that describes how to disassemble your computer, to allow you to physically view the internal fans.

If you do not have the technical skills to disassemble/reassemble your computer, I recommend that you pay a certified computer technician to upgrade your fan(s).

[DGroves]

or break out a tape measure and find out the width/height yourself

also note the plug end is it 3 wires or 4 

common sizes are 80mm/92mm/120mm/140mm in width and  25mm for height for case fans with 120 being the most popular size for tower case fans

[briznasty]

Another question!

On the mobo, the cpu fan is plugged into something labeled "CPU_LC FAN". Next to it, there is another 4 pin slot labeled "LC_PUMP".

Could I potentially just run another fan into "LC_PUMP" if i chose to do so?

[DGroves · Accepted solution]

no that header is not usually a speed adjustable one on most motherboards 

it's a header that is set to run at a single speed for a AIO water cooling pump