My HP Omen 25L that is about 2 years old - need help with correct new power supply

[elecho1]

The less than 2 year old PC is acting up, starting with a power supply. I bought a new ATX unit but the pins for the CPU connector do not seem to align. The ones that are square vs. rounded/cut corners are not the same. Its a split 8 pin, so 2 4 pin connectors on the motherboard to connect into. 

[NonSequitur777]

@elecho1,

Welcome to our HP Community forum!

Your OMEN by HP 25L Gaming Desktop PC GT15-0000i as fitted with the BlizzardL motherboard (SSID: 894A) with p/n: M81915-603, requires two CPU 4-pin power supply cables:

An industry-standard ATX power supply comes with either one or two 8-pin CPU power cables.  Each of these 8-pin CPU power cables are meant to separate into two 4-pin CPU power cables. These two 4-pin CPU power cables connectors are slightly different:

You'll have to match each of them to fit into your two motherboard CPU power connectors.

That's really all there is to it.

Kind Regards,

NonSequitur777

[elecho1]

Thank you for the response. I bought a new standard power supply, and one of the 4x4 connectors works, the other does not. It appears the motherboard accepts the type shown on your connector on the right, but you can see the pins that are square or rounded off are different on the one shown on the left. Seems odd yes, but that's how it is.

[NonSequitur777]

@elecho1,

My bad, I see what you mean:

My goodness -quite honestly, this is a terrible HP-proprietary CPU power supply modification compared with industry-standard (gaming) motherboards. Why not sticking with commonly accepted NORMS: using a single (or more with some) 8-pin CPU power connector rather than two separate 4-pin power connectors? -But I digress.

Well, the only solution that comes to mind is that you'll need a power supply that comes with two 8-pin CPU power cables, splitting them both, and plugging in the 4-pin power connectors that fit.  I suppose the reason why HP probably did this is to make sure you're using two separate (power rail) CPU power cables.

Kind Regards,

NonSequitur777