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10-23-2020 04:04 PM
Product: ProDesk 400 G3
Operating System: Microsoft Windows 10 (64-bit)
The computer will not power on. When I press the power button (pb) the small LED to the left of the pb lights up and goes out very quickly as well as the LED on the pb. If I press and hold the pb the led on it will flash white about once ever two seconds, and nothing else ever happens no matter how long I hold it for. Along with the flashing LED, the cooling fan will spin slightly every time the pb LED flashes.
The Motherboard is getting power as the network cable lights indicate connectivity and traffic, as well as the green light in the computer is on.
I have tried reseating the memory and hard drive as well as changing both. I have also tried a different power block. All changes have made no difference.
Does this sound like a motherboard issue?
1 REPLY 1
10-27-2020 04:48 PM
Certainly sounds like a motherboard issue -- but you will have to run diagnostics to find out.
To determine the cause with hardware failures, you have to be able run diagnostics. We have no way of accessing your PC from here, so we can not do that for you. You have to do it yourself.
You do this by pressing the Esc key repeatedly when rebooting and then, when the HP Startup Menu appears, selecting Diagnostics (usually F2) and letting it run.
If it is NOT possible to run diagnostics, or if that does not work, then there is NOTHING more you can do by yourself -- and there is NOTHING we can do because we have no way of accessing your PC from here to run diagnostics or repair hardware.
You will need to have the PC physically examined in a service facility by folks that can run their own diagnostics to determine what is wrong with it.
If your PC is still under the original one-year HP warranty, or if you have purchased an extended warranty from HP and this is still valid, then having HP do this is an inexpensive option for you. In that case, you should contact HP Customer Support to see about having it repaired or replaced under warranty.
To contact HP Support see the following link to create yourself a case number, then call and it may help speed up the call process:
Step 1. Here is the link: https://support.hp.com/us-en/contact-hp
Step 2. Enter Product number or select to auto detect
Step 3. Scroll down to "Still need help? Complete the form to select your contact options"
Step 4. Scroll down and click on: HP contact options - click on Get phone number
Case number and phone number appear.
If your PC is no longer under warranty, then it will cost you up front to have HP examine your PC. If you want to do that, you will have to contact an HP Repair or Service Center to see if they can examine the PC to determine the cause(s) of the problems, if it can be repaired, and an estimate of the repair costs.
Since you live in the U.S., here is a link to the HP Service Repair Centers:
If that link does not provide the results you want then use the main HP link:
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