⟐ Commented April 02, 2026 at 1:46 MST

Translation French → English

Hi, I have an HP Pavilion 23. When I connect it and then press the power button, the screen remains completely black. I cleaned the RAM stick and removed dust from the fan. Then I turned it on again, and the screen is still black. Please, I tried the Windows + B and Windows + V combinations, but that didn't work either.

⟐ Edited March 31, 2026 at 21:18 MST

Please help!!!

I'm currently running windows 8.1

1tb hard drive, with 8gb of ram..

Thanks

Please email me with the correct information, at chadamoore80@gmail.com

Much appreciated

⟐ Answered March 31, 2026 at 16:57 MST

⟐ Commented March 30, 2026 at 23:20 MST

⟐ Commented March 29, 2026 at 23:58 MST

⟐ Answered March 18, 2026 at 0:58 MST

⟐ Commented March 17, 2026 at 13:17 MST

I am a repair technician and I am working on a customer's hp all in one desktop and I cannot figure out how to remove the plastic covering that encases the lcd for the computer and was wondering if anyone could help.

⟐ Edited March 17, 2026 at 1:27 MST

⟐ Answered March 07, 2026 at 21:55 MST

1. Turns on when you connect power. You do not need to press the power button. It just turns on.
2. CPU, GPU, and PSU fans all spin. PSU will start to spin aggressively if left on for a while. (I don't remember if the memory fans spin; I took that assembly out so I could see).
3. No video output. Can't try onboard graphics because it has a Xeon CPU. So no iGPU.
4. No beep codes, blink codes, or other errors.

I would specifically like to know if the PSU is at fault (it's my current theory). Problem being. it's a proprietary power supply.

So. How do I test it? I am probably going to take the housing off and just look. But NOT TOUCH anything because I don't have a death wish. But I'm invested. And this is taking up residence in my brain.

PSU in Question. Specs/model number and weirdo connectors.

I'll probably cave and buy a new one, but I would rather be sure before I invest $$.

Stuff I have already tried. In case someone has other ideas that aren't Power Supply.

• Parsing down to minimum config (Only CPU, one stick of RAM)
• BIOS recovery
• Installing a known good GPU
• Remounting the CPU
• Swapping RAM sticks around (It has 8 slots. 3 were populated. I verified they were in the correct layout and tried various sticks in the Number 1 slot.

UPDATE 04.20.2024 - Somehow this thread keeps finding people and I have still not fixed this or found a definitive answer to my question, but hopefully these voltages will help someone, or at least contribute to this discussion. I should add, I do not believe these voltages are correct.

Measured voltages on my connector when both connectors are attached to the board and power on is attempted.

Colors are constent with typical markings

• Orange = 3.3V
• Red = 5V
• Yellow = 12V
• Black = Ground or Voltage measured
• Purple = 1V (I am not convinced this is normal, but nevertheless have nothing specific to compare to).

Even though my device powers on almost immediately after the PSU is connected to power, I can power off. Voltages with the power off.

Anything not marked has no voltage and all previously 12V lines have very nominal voltage (~.08V).

I am again starting to think the PSU is to blame. I have checked the board pretty thoroughly previously for shorts, but since it is a rather large board, this is somewhat difficult.

⟐ Answered March 03, 2026 at 6:06 MST

⟐ Answer accepted March 02, 2026 at 3:46 MST

⟐ Commented February 22, 2026 at 5:33 MST

⟐ Answer edited February 21, 2026 at 23:04 MST

⟐ Answer edited February 27, 2026 at 20:01 MST

⟐ Answered February 14, 2026 at 23:20 MST

⟐ Commented February 07, 2026 at 11:21 MST