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Active: 1941 users

Computer starts but won't go to BIOS

Forum Index > Tech Support
Post a Reply
Ghyslyn
Profile Joined September 2010
Canada130 Posts
September 13 2015 21:06 GMT
#1
Left my computer running last night. When I got back home it was off. Attempting to start it again results in it stopping at the green screen (see img below). I can then press del or tab successfully but that just stucks me on the next screen as seen in the next img.


[image loading]


[image loading]


Additional details:

All fans working properly.

Attempted fixes:
Unplug replug system
Unplugged and replugged hdds, ram, video card
Removed CMOS battery and let sit for 3min while psu set to off and unplugged.

All attempted fixes resulted in no change.
베이컨
Steelo_Rivers
Profile Blog Joined January 2011
United States1968 Posts
Last Edited: 2015-09-14 14:02:47
September 14 2015 00:45 GMT
#2
unplug all of your case usb ports as well as any memory card adapters.

Edit: Sorry, I should've been more clear about this. Try booting your pc with all USB hubs and Memory card adapters, that are connected to your motherboard via the USB headers, unplugged. Also, if that doesn't help, Try booting with everything unplugged except your Keyboard (connected directly through your motherboards USB Ports), PSU, Monitor, and 1 stick of ram. If you can get into bios like that then something is damaged. You said that your pc was on when you left it and off when you came back, maybe there was a power surge. It could be that your PC bsod'd and never restarted.
ok
Ghyslyn
Profile Joined September 2010
Canada130 Posts
September 14 2015 03:50 GMT
#3
Just unplugged all usb devices and hard drives. No change. I'll try again using integrated graphics instead of my card and with 1 usb stick at a time as you recommended.
베이컨
Ghyslyn
Profile Joined September 2010
Canada130 Posts
September 14 2015 03:59 GMT
#4
Update: running on one stick with integrated card. Got into bios successfully. Gonna try different RAM combinations to see if that was the problem. If still successful gonna try GPU with different RAM combinations.
베이컨
Ghyslyn
Profile Joined September 2010
Canada130 Posts
September 14 2015 04:25 GMT
#5
Everything plugged in minus video card and all seems to work. Unless I'm mistaken there are teo possible options:

1. Video card is causing the trouble. But then I'm confused as to how I was still able to get to the green screen.

2. PSU can't provide enough power to work the video card. I might test another PSU Tomorrow if I have enough time.

If you guys have any other suggestions or ideas let me know. Big thanks to Steelo_Rivers for helping me isolate the issue.
베이컨
Steelo_Rivers
Profile Blog Joined January 2011
United States1968 Posts
Last Edited: 2015-09-14 08:34:52
September 14 2015 08:33 GMT
#6
Actually, it might be easier if you have another video card on hand to try first. If it has that same problem with other video cards, then it may be your mobo. I'd assume PSU though due to how you described how the issue began. But yea man, sorry for not being more clear about it the first time. Don't really know what I was thinking by saying something so vague.
ok
Ghyslyn
Profile Joined September 2010
Canada130 Posts
Last Edited: 2015-09-14 22:01:17
September 14 2015 21:26 GMT
#7
Free time now. Gonna try different PSUs. I don't have any spare vider cards on hand to try so we'll see how this goes.

Edit: Everything booted successfully with backup PSU. It's a lower wattage so I'm running a stresstest to see if it can handle things and if not that's a problem for another day.


FINAL VERDICT: PSU wasn't working hard enough. Possibly damaged while I was AFK the other day. Solution was to replace the PSU.
베이컨
WonnaPlay
Profile Joined September 2010
Netherlands912 Posts
September 15 2015 11:15 GMT
#8
Yes correct. It is most likely your PSU.

To answer this question
1. Video card is causing the trouble. But then I'm confused as to how I was still able to get to the green screen.


Up untill within windows (depending on if the drivers are installed or not), the computer won't use the videocard.
If you would unplug the video card (on the faulty PSU), it is also highly likely you can boot into windows.
Cyro
Profile Blog Joined June 2011
United Kingdom20322 Posts
September 16 2015 14:31 GMT
#9
Most PSU's are pretty awful

Up untill within windows (depending on if the drivers are installed or not), the computer won't use the videocard.


with screen plugged into GPU, it will be used for bios display etc. The drivers don't come into play until OS is loaded though
"oh my god my overclock... I got a single WHEA error on the 23rd hour, 9 minutes" -Belial88
WonnaPlay
Profile Joined September 2010
Netherlands912 Posts
September 17 2015 10:50 GMT
#10
On September 16 2015 23:31 Cyro wrote:
Most PSU's are pretty awful

Show nested quote +
Up untill within windows (depending on if the drivers are installed or not), the computer won't use the videocard.


with screen plugged into GPU, it will be used for bios display etc. The drivers don't come into play until OS is loaded though


Yeah, I meant that if you haven't installed the driver, it's possible Windows won't use the GPU at all (depending on where you plugged it in)
KT_Elwood
Profile Joined July 2015
Germany1093 Posts
September 17 2015 19:09 GMT
#11
Do you still have IDE/ P-ATA devices? If yes unplug them from the mainboard. Unplugging powercable only does not help, POST will detect the drives, but since lacking power, they can not answer.
"First he eats our dogs, and then he taxes the penguins... Donald Trump truly is the Donald Trump of our generation. " -DPB
Ghyslyn
Profile Joined September 2010
Canada130 Posts
October 29 2015 03:04 GMT
#12
CHECK YOUR RAM

For anyone having similar issues:

After replacing the PSU everything was working "fine" but my computer would regularly crash. I've just isolated the issue and determined that one of my two sticks of RAM was also damaged. Easy fix but still a pain in the butt until you figure it out.
베이컨
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