Tagged Questions

0
votes
0answers
20 views

Power-on button takes a long time to work after PSU is turned on

I have a four-year-old Dell Inspiron 530 desktop with onboard video and recently it started to show this weird behavior (sorry, it’s a long post…). The computer is connected to a voltage regulator, ...
7
votes
2answers
109 views

New build not powering up at all after connecting psu cables to hard drive

I recently decided to build myself a new, cheap(ish) rig mainly for HTPC use and I have now run into a BIG problem. The system simply refuses to show any signs of life. Problem: When I press the ...
0
votes
0answers
32 views

PC powers off after standby

Whenever I resume my PC out of standby, the PC immediately shuts off. Then when I press the power button, nothing happens. I have to flip the power supply switch on the back a couple times before I ...
0
votes
2answers
312 views

Computer making strange sound when turned on, ever since power outage

Recently we experienced a power outage, and the PC was off. However, once the power came back, I switched on the PC and heard a strange noise - almost as if the hard disk or fans were struggling to ...
1
vote
0answers
169 views

Computer Won't Boot After New Power Supply

I recently bought a Rosewill 750-M PSU to replace an Antec Earthwatts 500. My computer worked fine before making the switch. After installing the Rosewill PSU, I attempted to boot. Fans spun up for a ...
5
votes
2answers
224 views

On warm (re)start, computer powers off instantly. After unplugged, it starts and runs ok

My computer fails to start from any power-state other than power-off: ASUS UEFI MB (F1A75-V Pro) with AMD Llano APU 12G RAM (passes memtest) 3x HDD Thermaltake semi-passive PSU Cold start works ...
0
votes
1answer
1k views

Switching power supply from 115V to 230V and back again allows PC to boot--why?

I support a refurbished Dell Dimension 3000 PC (c. 2004) which occasionally will not boot: no POST or video signal, but the fans will begin blowing and an LED on the mainboard lights up. I believe the ...
0
votes
2answers
133 views

Old HP computer powers off after seconds, hard drive still spins. Power supply? Motherboard?

Someone called me saying their computer keeps shutting off. I brought it home to troubleshoot. It's an HP Pavilion 513c The computer powers on normally, but almost immediately powers off. ...
0
votes
0answers
132 views

Supermicro X8SIL-F with Enermax Modu82+ 625W PSU booting issue

I am assembling a custom PC. The configuration is below: Motherboard: Supermicro X8SIL-F Processor: Intel Xeon 3430 Power Supply: Enermax Modu82+ 625W. Memory: Kingston KVR1333D3LQ8R9S/8GEC 8GBx1 ...
0
votes
0answers
57 views

Computer will turn on, but not turn off, without any display or beeps [duplicate]

Possible Duplicate: What Reasons Would A Computer Power Up But Not Boot? I press the power switch and my computer turns fans and LEDs on. However I can't turn it off by holding the power ...
2
votes
2answers
973 views

Boot up troubles, power related - system always stable once booted

I've got a system that's been causing me a lot of trouble over the last few months. Below is a somewhat lengthy saga of my experience with it but it should hopefully provide some thorough problem ...
0
votes
0answers
236 views

Cannot boot anymore, power supply broken?

My desktop computer is not able to boot anymore. Currently I have breadboarded my computer taking everything out of the case so the motherboard is only connected with: 500W power supply, connected ...
1
vote
1answer
169 views

PC won't power on due to graphics card loop

One day when I decided to turn on my PC, something strange happened. All the fans were running, but I had a blank screen. I then heard my graphics card's (ATi 5770) fan go in to a loop, turning on for ...
0
votes
2answers
2k views

Computer starts without pressing the power button

When I open the switch of the power supply, the Computer automatically starts up and then in three seconds automatically shuts down. I have tried shutting down windows properly but this unusual ...
3
votes
1answer
484 views

New Power Supply doesn't work with a specific motherboard

I just bought a new power supply Corsair CX430 V2 in order to meet the needs of a new graphics card I hope to install. The motherboard is the micro-ATX form factor Asus P5KPL-AM/PS running a Intel C2D ...
1
vote
2answers
4k views

Asus P8P67 Rev. 3.1 Motherboard issues powering on and saving settings

Edit: New Information Have some updated information from the old question below: So basically my issue right now is somewhat similar, but I've been able to rule out a couple of things. I don't think ...
0
votes
1answer
173 views

Computer Restart : it shutdown but it never power up

I am seeing an used desktop computer with MSI motherboard and runs Windows XP, the problem is when i restart the computer using Windows >> shutdowns >> Restart, the computer shutdown but never power ...
16
votes
3answers
4k views

Why does my PC successfully boot only when unplugged for more than a few minutes?

I have an HP Pavilion Elite desktop computer, model HPE-490t. I like it because it didn’t cost too much, boots itself from an SSD, came with 16 GB of RAM, and has 6 CPU cores for editing video and ...
1
vote
4answers
833 views

PC takes one hour to start from pressing power-on

When I press the Power-on button on my PC, it takes 1 hour before it starts. If we wait for one hour or so then lights will glow and booting starts, and then everything is normal. Once the computer ...
1
vote
1answer
1k views

Computer turns off 20-30 seconds into the boot process

I have a Intel Core i7 system, ASRock MoBo, triple channel memory, EVGA graphics card. This is a ~2 year old build, that have been running perfectly until now. Whenever I turn it on, it turns off ...
0
votes
2answers
1k views

Computer shuts down straight away without getting to BIOS

The other day when I was to use my computer it had locked up, it didn't responde to keyboard so I pressed reset. Instead of restarting it simply shut down. Pressing the power button resulted that the ...
2
votes
3answers
377 views

New power supply and now HDDs are not recognized

So I upgraded to a new X4 ULTRA power supply that was recommended to me by a local TigerDirect store. After installing it along with a new liquid cooling system, I booted it up and it automatically ...
0
votes
2answers
123 views

P.O.S.T issue and keyboard failure

I have bought an 4core1600twins-p35 motherboard a few month ago and am only testing it now. When i plugged it in, the keyboard light automatically turns on. and when i boot computer it freezes right ...
2
votes
0answers
103 views

Power supply broken? [duplicate]

Possible Duplicate: How to test a power supply? I was switching internal hard drives while the computer was still running and then the computer shut down and won't boot now. I am thinking I ...
1
vote
2answers
869 views

HP Compaq T5000 won't power up

So, just took an unused HP Compaq T5000 out of storage, originally bought in 2006, so thought I'd power it up and look into how I could repurpose it at home.... except that it wont start up :( When I ...
1
vote
1answer
215 views

How to boot computer after shutdown during updates?

I shut my computer down while doing updates in Windows Vista. Now it will not turn on, and I get no response when I hit the power button. Do I have to take it to a professional?
3
votes
3answers
323 views

Random booting and rebooting

I have a very strange problem that I can not understand nor explain and is driving me crazy. I have a Fujitsu Siemens Esprimo Edition P2411 tower PC. It has been running Windows XP from new quite ...
5
votes
6answers
783 views

Can a grounding problem damage computers immediately?

Can a grounding problem damage computers immediately ? I have transferred my office. New office did not have grounding. I tried to boot 4 computers. Two of them booted. One of them hung while ...
0
votes
1answer
65 views

Power up problem maybe PSU or powerswitch

I have computer that occasionally fails to start up. It has the following symptoms: You can push the power up button and nothing happens. You can push the power up button and it looks it starting to ...
1
vote
1answer
211 views

Troubleshooting desktop PC not booting if network and USB ports are connected

My current desktop machine is composed by: Intel q6600 Gigabyte EP43-DSL3 4GB DDR3 2HD S-ATA 750MB Seagate DVD-RW S-ATA Keyboard, webcam, headphones and the usual stuff connected to the USB ports. ...
1
vote
0answers
183 views

Keyboard light on after computer shutting self down

I've been having problems getting my desktop to boot as of late. There are a few possibilities as to why this is, but it turned on yesterday while I was in class and I decided to leave it on. Today ...
0
votes
2answers
161 views

Motherboard POSTs only once in a while

It's a Gigabyte GA-8S661FXM-F... Intel P4 HT Prescott 3 GHz installed, along with Kingston 1GB PC3200 DDR400 RAM and a Fujitsu 20GB IDE HDD. I've tried a Sparkle 300W PSU, an OKIA 300W PSU and a ...
1
vote
3answers
2k views

Computer suddenly shut down - won't start again

Last night my computer seemingly broke down completely. I wasnt looking at it when it happened, but I could hear the entire thing shut down. It was only idling in desktop at the time... Afterwards I ...
2
votes
4answers
2k views

DISK BOOT FAILURE after upgrading power supply

After upgrading my power supply, I get the following error message when trying to boot into Windows 7. DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER My Windows 7 installation is on a SATA ...
2
votes
1answer
6k 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 ...
3
votes
7answers
13k views

Power supply issue? New Radeon5850's fan runs at full speed and PC doesn't boot

I recently bought a new ASUS EAH5850 graphics board. I installed it a custom PC which had an ASUS p5n-e SLI mobo along with a 500w Thermaltake W0093RU power supply. Sometimes when doing a cold ...
5
votes
10answers
3k views

How to troubleshoot a computer not booting up when powered on?

I can turn on my computer and sometimes it will boot up just fine. After a while of use, days or even a week, when I try to turn it on, it powers up, in that the fans spins up, the power indicator ...
1
vote
3answers
395 views

Temporary boot problem after thunder storm - likely causes?

The village where I live was sat under a thunder cloud for most of Friday, and we suffered a few power fluctuations (specifically, what seemed to be split-second outages). When I got back home from ...