HP EliteDesk 705 G1 Not booting and fan running full speed.

[jedi_jackson]

It is not. Only 6 pin

[phillpower2]

You are going to struggle to find an appropriate replacement PSU I`m afraid, you can get 24 to 6 pin adapters for use with a standard ATX PSU but yours does not look the same size and shape so a standard ATX PSU may not fit in your case.

[phillpower2]

Any update for us

[jedi_jackson]

I was able to get the computer to boot into Windows one time only for about 30 seconds and black screen again and fans running full speed. I haven’t been able to get an adapter yet to try another PSU. Probably going to order a PSU and give that a try. Since I was able to get it to boot into Windows I am hoping it is the PSU and not the motherboard.

[phillpower2]

Get the adapter first and try it with one of the standard PSUs outside of the case, less expensive that way if it turns out that the MB is bad.

[jmarket]

If I may chime in here,

If it’s going to black screen and fans are spinning at full speed, it means the PC rebooted and is failing POST. Do you get any beep codes?

[phillpower2]

Thread closed due to lack of feedback from the OP.