400 Watt 400W TFX Power Supply Upgarde Replacement for HP PCI-Express SATA

I was trying to upgrade a 'slim'-cased Gateway with this and made careful measurements in the case before shopping for a P/S. Although a nice compact unit the specs were not quite tight enough on the dimensions and now I need to mod the case to get this in.As a result it still sits in its shipping box awaiting my attention and surgical cure for it's long-(rather than short)comings.Sigh.

I replaced my old 220w PSU in my HP Slimline s5623w with this 400w TFX PSU. Took the old one out plugged this one in and bang. This was an essential upgrade to top out my small form pc. With this 400w unit I can run the best low profile ready video card that will fit in my case; the EVGA GT 620 2GB card. I am also putting the best CPU my motherboard will handle the AMD Phenom II x4 850 with a TDP of 95w which is the highest value the motherboard will accept.This PSU will deliver all the power I need and Fit perfectly inside the case and snapped right into all the tabs. Perfect! I highly recommend this KDM power supply!

HP, for some reason, doesn't not want you upgrading your power supply. In order to insure that you don't, they make every HP computer with a different proprietary connector. There are many 3rd party power supplies like this one that claim HP comparability, but they don't say to which HP model. It's a surprise I guess.If you're upgrading for a graphics card, you can get a graphics card with an external 6-pin PCIe power port, stick a jumper (paper clip) in the 20+4 (look for more than 2 illustrations on how to do this, some people post wrong examples), cut a hole through your case, and connect this power supply up. I got it to work, but your results may vary.

it has been at least 4 months since i ordered the psu and i still works perfectly. i am able to power on oc'ed 7750 and quad core with ease on it. it serves its purpose.