0
votes
2answers
30 views

Computer is Shutting off Randomly Throughout the Day - Need to Tilt Case to Restart

Throughout the day, my Windows 7 desktop system is shutting down without warning every 2-6 hours or so. The frequency seems to be getting greater, but I'm not yet completely sure of that fact. This is ...
0
votes
0answers
15 views

Computer starts and shuts down. After pushing the power on, it functions normally

Enviroment: * I have a working room with a common power switch for all the room. Every time I leave the room I switch the power off. * In this room I have a Fujitsu Siemens computer running Windows ...
0
votes
0answers
17 views

PC Shut Down & Blue Screening?

I have recently upgraded my motherboard in my computer before that I had a standard small board but now I have a big gaming one (forgot the exact size names think its atx or something) Anyway, ...
3
votes
1answer
144 views

PC not turning off

I am trying to shut down my PC but it is not shutting down! I am using windows 7. When I say shut down (from start menu), windows is shutting down screen comes up. After several seconds display goes ...
2
votes
3answers
461 views

Computer shut down while playing a game

Fourth edit: I removed my graphic card. I installed Intel HD Graphics 4000 driver and then I did a test (graphics test). There is a similar sound like the one of my graphic card: ...
1
vote
0answers
80 views

Sudden and spontaneous shutdown when using ACPI

On a Dell Optiplex 755, when I bring the system out from ACPI S3 (suspend) to S0 (normal running mode), the system stays on for perhaps 10 seconds, maybe more. Then it very suddenly shuts the power ...
-1
votes
1answer
66 views

Computer randomly shuts down with a fading alarm power button and CD drive

I am currently experiencing something very very odd. Having build my PC myself, I have never had any issues (or anything heat related). A few moments ago my computer shut down very randomly and ...
11
votes
4answers
4k views

Can PSU cause my PC to reboot?

I'm having an issue with my PC: It is rebooting sometimes, and I am suspecting the PSU, so I want to confirm a few things. It is a new PC and the first issues started occuring roughly one month after ...
0
votes
1answer
41 views

Probe in USB Socket Caused Computer to Power off

A 110V-220V Electronic Tester Screwdriver was inserted into USB Slot and the entire computer was powered off. I thought the PSU might have been short circuited. I pressed the power button several ...
1
vote
1answer
266 views

Desktop PC won't turn off (turns back on)

I have an old (2006/2007) Medion 8818 desktop of which i replaced the broken FSP300-60GTM 300W PSU with a new LC500H-12 V2.2 500W PSU. It has no HDD. Thermaltake's Dr.Power II said my new PSU is fine. ...
3
votes
1answer
4k views

My computer doesn't start - it is stuck in a turn-on, turn-off loop

When pressing the power button, my computer starts making start-up noises, but after a few seconds it shuts down. Then, after 2-3 seconds, it automatically starts turning on again and a few seconds ...
0
votes
3answers
907 views

Sudden PC Power Loss - New Computer

I just recently (last week) built a new PC. Upon initial assembly, I had issues getting it to power up. When I turned on the power supply nothing seemed to happen. I tried disconnecting and ...
2
votes
0answers
431 views

Computer randomly turning off after BIOS update?

I recently built a new PC, which has been running fine up until a BIOS update yesterday. I normally wouldn't update BIOS unless there were issues and in this particular case, the AMD FX-6100 CPU I'd ...
2
votes
2answers
162 views

Computer won't turn on

I moved my computer about a week ago, and I haven't plugged it in since… I see the power supply lit up, and the mobo is lit up as well, indicating power. However, when I press the button, the fan ...
6
votes
2answers
449 views

Computer randomly shuts itself off

I have not been able to determine a pattern for why this happens, despite my best efforts. I've attempted to run it on full power with Prime95 and this doesn't trigger a restart. Generally the ...
2
votes
3answers
168 views

Random desktop powerdowns - what else can I check?

My main PC, an 8-year old Dimension 2350, started powering down randomly today (as in monitor says "no signal" and all power is cut, and NOT the progressive Windows shutdown that happens you ...
2
votes
2answers
226 views

Possible PSU Issue?

I have a computer that is about 4 years old and has an even older PSU. A few weeks ago, it started behaving strangely. The system seems to be running as normal in most cases- except when I fire up ...
1
vote
2answers
360 views

My PC keeps restarting!

I have had this weird issue for a month now. I sometimes have trouble trying to initiate the PC to work. It has XP on it. When it boots it loads the progress bar then a power failure occurs. Sometimes ...
1
vote
2answers
1k views

How to force a hard drive to shut down

I have a hard drive in my computer that I'm not using. I want Windows 7 to shut it down. I don't want to have to manually remove the cable. (The reason is that for some strange reason my computer ...
3
votes
1answer
10k views

Power cycles on/off 3 times before booting properly from cold start, no other issues (New System)

Relevant Specs: Sapphire 5850, core i7 920, Seasonic x750 power supply, ECS X58B-A2 mobo. From a cold boot, meaning all power totally disconnected at the wall, the system will power on for less than ...