04-08-2018 04:18 PM
04-08-2018 09:02 PM - edited 04-08-2018 09:05 PM
@Angierose76, welcome to the forum.
What happened to your son's computer is very common. The computer is running great, but when it is shut down it doesn't boot. This is because one of the components is ready to fail and one last surge of power takes it out.
If you have followed this Troubleshooting Guide, the only suggestion I can give you is, test the AC power adapter to assure that it hasn't failed.
Please click the Thumbs up + button if I have helped you and click Accept as Solution if your problem is solved.
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
Custom build: Corsair 750D Airflow (Full Tower); MSI MEG z390 ACE; i9-9900K processor (OC'd 5.025); Corsair H150i cooler; Corsair Vengeance Pro 3200 memory ( 32 GB ); MSI RTX 2080 Gaming X Trio video card; Samsung 970 Pro 512 GB; Samsung 860 EVO 1 TB
HP Spectre 360 Convertible; i7-7560U; 16 GB memory; Intel® Iris™ Plus Graphics 640; 512 GB PCIe® NVMe™ M.2 SSD; 13.3" diagonal 4K UHD UWVA eDP BrightView WLED-backlit multitouch-enabled edge-to-edge glass (3840 x 2160); Windows 10 Pro 64 with Windows Ink
HP Photosmart 7520 AIO
I am not an HP employee.
04-12-2018 07:24 AM - edited 04-12-2018 07:52 AM
HP Pavilion 23-q055na Touchscreen All-in-One PC
my guess is this. it.
try a new power pack?> (LED mean little, 2v and they glow)
use voltmeter to check power pack voltage. 19.5vdc,
3 years old
screen dead. never a logo or text ever. now.
if the power pack is good, what else is there,. well 2 things,
1: bad main board.
2: or anything module-wise plugged into it shorted. HDD, Display, RAM. so we remove those and see if at least the fan wakes up. or screeen shows any thing, get BIOS screens working first.
if you go to shop and spend $300
and later find the $15 Power pack was bad, be a shame. no? ebay that pack, see? 90w /19.5vdc pack
i see it uses the very common HP coax power connectors there, fat and strong .
ALL PCs die, not one lives for ever.
just like cars. and ....
top failures on old PC not same as new. (BOTH)
Bad battery, RTC TINY coin cell or if A laptop its main HUGE battery is #1 all time failure of PCs.
Bad HDD. (they last 10years.) or less.
Bad LCD BACK lamps, (CCFL) , on old LCD older than 2010 year. but if PC dead silent, fan and HDD, this is not it.
Power pack died. eaSsy to buy , easy to plug in and and cheap, why wait? (or learn how to test it, ask?
the pack is 90watts not 65w.
The HP parts pages show, they sell near nothing for this PC. (lists them and snows N/A)
even the main boaRD IS MISSING in the list, tells me the PC is toy grade. (lacking P/n for that !)
this is your MOBO
The coin cell is tested first 3.3v good below 2.9v bad. some last 5 to 7 years, but luck can be bad on all batteries made.
then test it with ram sticks 1 by 1, in bank 0 first.
see if one stick is bad or shorted. that way.
unplug all HDD, or ODD (dvd option is present)
I see this sold on EBAY for $20 smackers. if it proves dead. (says pulled from new PC)
my comments are mine and mine alone, im not HP and I am a retired tech.
This is a long post, due to the odd nature of all-in-one PCs, (non standard,) on real desktops we have vast options.
08-31-2019 06:32 AM
I had the same issue 3 days ago; i disassemblied the PC and when I pushed the button on the circuit board, it worked.
It was just a mechanical problem : the plastic device didn't work properly
Hopefully it Will help you
Sorry for my english, I'm french