HP small form factor PC - wont power up.

fcek
fcek used Ask the Experts™
on
Customer says small power light on back but of pc but won't power up.

Tested elec socket - ok
Swapped power cable to monitor - same
Held in power button for 20 seconds - same

Are Hp mobo proprietary ? I.e. If it's the mobo
Any point in getting another mobo from another manufacturer?

I've to go on site in an hour


Thanks
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Commented:
do you get any pre/post bootup sounds/beeps?
Most Valuable Expert 2013
Commented:
If you replace the mobo with non-HP and this has an OEM Operating System Windows will no longer activate.  Do you have a spare PSU you can take with you?
Commented:
If the light on the rear of the motherboard is coming on but the power button does nothing then my guess would be that the mother board has failed.  If there is no light on the MB then the PSU may have failed.  The board would probably be unique to that range of PC's.

You should try reseating the memory and any riser cards, then try removing all but the essetials (1 stick of RAM and the CPU) to see if it will then start.  If you still have nothing it may be worth checking the HP web site to see if by some miricle the warranty was extended when it was purchased.

Hope this helps

Priz
Acronis in Gartner 2019 MQ for datacenter backup

It is an honor to be featured in Gartner 2019 Magic Quadrant for Datacenter Backup and Recovery Solutions. Gartner’s MQ sets a high standard and earning a place on their grid is a great affirmation that Acronis is delivering on our mission to protect all data, apps, and systems.

Author

Commented:
On site In a few mins thanks for tips
Commented:
Swap out power supplies or test with another power supply. You can use a standard ATX power supply for testing. Just connect the main and auxiliary CPU power connectors.

I suspect you have a failed power supply. The motherboard LED only shows that 5VDC standby power is present and LED on back of power supply shows that AC power is present. Neither one indicates that power supply is functional.
Top Expert 2013
Commented:
it can be nearly everything, but the PS is the first one to check, as said
you can use this guide to assist your troubleshooting :
http://www.experts-exchange.com/Hardware/Components/Motherboards/A_1945.html                  (Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post)
Iain MacMillanIT Regional Manager - UK
Commented:
HP mobo's and PSU are proprietary and usually unique to that range of systems, sounds like its the PSU @ fault, they usually are the first to go, unless you see any other damage inside the system.  I had one leak silicon oil all over a DC7700 CMT when the PSU failed.

use the HP spares number to get a replacement.

Author

Commented:
They had two identical PCs - 1 working and 1 not.  I swapped everything and the only remaining ? was the mobo. <br /><br />Thanks again.
Top Expert 2013

Commented:
tx for feedback

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial