What physical size motherboard fits in my Omen 25L

[jscity720]

Hello there,

i am interested in upgrading the HP motherboard that came with my Omen 25L. I determined that the motherboard model is the BlizzardL motherboard: https://support.hp.com/us-en/document/ish_5799854-5799957-16

My question is, exactly how large can the new motherboard be and still fit inside the 25L case? The support page says that my current motherboard is:

Form Factor

• Micro ATX, channel board exchangeable

• Dimensions: 24.0 x 24.0 cm (9.45 x 9.45 in)

 So I began looking for other Micro ATX motherboards, but the standard Micro ATX motherboard dimensions are 244 x 244 mm (9.6 x 9.6 in) which is bigger than my current motherboard size.

 Could you tell me if the slight difference in size (4mm) of a standard Micro ATX motherboard will cause problems during installation or not?  Are there other motherboard options that are exactly 240 x 240 mm instead of 244mm square?

 Thank you in advance for your help.

[NonSequitur777]

@jscity720,

An Omen 25L Gaming Desktop GT15-0xxx offers plenty of performance options as you can see here: UserBenchmark: HP OMEN by HP 25L Gaming Desktop GT15-0xxx Compatible Components.  Meaning, the upgradeability of your Omen shouldn't make upgrading your motherboard a particularly high priority in my honest opinion.  Rather, upgrade your graphics card.

However, if despite this you are interested in a non-HP Gaming motherboard (Asus, Gigabyte, MSI, etc.), find a good deal via eBay as I did recently:

And buy an industry standard gaming (m)ATX PC case via Amazon.

Kind Regards,

NonSequitur777

[jscity720]

Hello NonSequitur777, thank you kindly for your reply. The reason I was considering an upgrade now is to take advantage of the Black Friday sales happening now, and I hoped to use the Omen 25L case as the starting point. But since you recommended getting a new standard Micro ATX case if I wanted to get a new motherboard, I guess that confirms my fear that the Omen 25L case will not fit a standard size 244 x 244 mm motherboard, unless I find a replacement motherboard that is a non-standard 240 mm size.

Also as you said, I think my money would be better spent upgrading the graphics card while keeping the HP motherboard. Thank you for your feedback!

[NonSequitur777]

@jscity720,

You're welcome!

Kind Regards,

NonSequitur777