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Questions tagged [post]

Power On Self Test, a routine that a device runs immediately after turning on.

0 votes
2 answers
25k views

Harddisk SMART failure detected, turn off check on every boot

I have windows 10, updated to 1903 a few days ago. I have the Asus z170 motherboard and have three Hard drives, one an SSD which has my windows installed on it and another one is 1tb Seagate and ...
krv's user avatar
  • 699
2 votes
4 answers
7k views

Computer won't POST after power outage

I had just turned my computer on and windows was loading when the power in my neighborhood went out. Normally, when I turn my computer on, the video card fan spins up, then slows down, POST and ...
aaron's user avatar
  • 31
23 votes
5 answers
76k views

Why does pulling the power cord then pressing the power button fix a non-booting PC?

I've been working at this institution for about 6 years. One thing thing that I've always found curious is that sometimes—especially after a power outage—we find a PC that won't boot when the power ...
Justin Force's user avatar
3 votes
1 answer
4k views

Enabling AHCI causes BIOS to hang on POST

I have an ASUS P5QL Pro motherboard and a Seagate 7200.10 HDD. When I enable AHCI in the BIOS the BIOS hangs when detecting the HDD. After having searched around the web for a while this seems to be ...
Mircea Chirea's user avatar
3 votes
2 answers
11k views

What does this beep code mean?

When I wanted to start my laptop today (an Acer Aspire 8920G), the laptop started beeping. I know this beeping is a POST error code, but I can not figure out which one it is. The motherboard of the ...
Jaspack's user avatar
  • 95
3 votes
3 answers
341 views

No POST on previously working system

About four years ago I built this system: Biostar TForce4 AM2 motherboard AMD Athlon 64 3800+ @ 2.2GHz 2x512MB Corsair CM2X512A-6400 DDR2 ATI Radeon X1800XT (512MB RAM with dual outputs) Antec ...
Troy's user avatar
  • 33
2 votes
2 answers
3k views

Is my new Graphic Card cause for my PC hanging?

My Computer Specification My Motherboard specification My new Graphic Card Some days ago I bought a GeForce 8400 GS Graphic card. My computer satisfied all the minimum system requirements it ...
Anirudha's user avatar
  • 151
4 votes
2 answers
3k views

After working for over 4 years, a custom PC won't POST

Configuration: CPU: Intel Core i7-4790K Motherboard: ASUS Z97-A ATX DDR3 2600 LGA 1150 RAM: Crucial Ballistix Sport XT 16GB Kit (8GBx2) DDR3 1866 PSU: Corsair RM750 When I turn the PC on, the ...
user1566515's user avatar
4 votes
1 answer
2k views

Connecting a hard disk causes computer to not even POST

As a power user and a long time computer enthusiast, I'm flabbergasted by this problem. I've seen many things in my lifetime, but this one is new to me. This is a long post, but an interesting ...
Andrej Peterka's user avatar
4 votes
10 answers
20k views

Motherboard won't power-on until it rests for ~10min with no power plugged in

I have a strange ASUS Rampage Formula motherboard issue. When the computer is off — I can't power it on: 'Power' button press gives just a short impulse on fans. When I disconnect the power cable and ...
kolypto's user avatar
  • 3,071
3 votes
1 answer
1k views

"Do UEFI specifications completely replace the BIOS?"

Do UEFI specifications completely replace the BIOS? (From uefi.org/faq) The UEFI specifications define an interface and the BIOS refers to a specific implementation of the firmware that ...
nicanz's user avatar
  • 141
3 votes
1 answer
1k views

PC hangs during post when webcam is plugged in

My PC keeps hanging during POST, just before identifying the amount of RAM, anytime I have my webcam plugged in. If I unplug the webcam, it will unhang and continue to boot up just fine. It also ...
Jason Kelley's user avatar
3 votes
3 answers
2k views

My computer won't POST when I install my new video card

My current Windows 7 32-bit system won't POST when I install my new Radeon HD5770 video card. When I pull out my new video card and replace it with my old nVidia 8800 GTS, it boots into windows fine. ...
dr dork's user avatar
  • 370
2 votes
2 answers
2k views

New computer won't boot

I've recently purchased a set of components and set about building my own desktop. It is not booting and I am stuck. When I hit the power button, the fans spin, but that's all. There is no video. ...
Chris Nielsen's user avatar
1 vote
2 answers
2k views

Video card not detected in POST on initial boot

I have a minor problem with my desktop computer after cleaning it out for dust. When I first boot up the computer, the video card does not get detected so I can't see anything. In POST, I'm getting ...
Jeff Mercado's user avatar

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