0
votes
1answer
23 views

How to determine if I am having power supply failure

I have this server Dell Precision 690. It has powered and turned itself off a few times. In some cases it seems to also be in a sleep mode where you have to turn it off and turn is back on. Is this a ...
1
vote
2answers
43 views

PSU Noise when turned off

When my PC is turned off and I bring my head very close to the PSU, I hear a high frequency noise. Is that normal? I can't hear when I am like 2 metres away from it. And it's only there when turned ...
0
votes
0answers
66 views

Agghhh! UPS Back-Up, Laptop Charger, Sparks

Boy… ok. This is so frustrating! Ok so, I've been getting a whole lot of problems with the electrical grid here lately: spikes, surges, lows, brown-outs, all kinds of problems, it's terrible, ...
0
votes
1answer
85 views

Battery reports it's fine, but notebook won't boot /wo AC plugged in

I am running Acer Aspire Timeline Ultra M5-581TG. I opened it up to clean (as I've done twice before), assembled it back and now observe weird behaviour: the laptop won't react to the power button ...
0
votes
1answer
41 views

Upgraded Computer, Now It Turns Off Randomly/Won't Turn On

I have recently upgraded my computer and now it turns off at random times. Sometimes, I'll be on all day and there will be no problem. Sometimes it'll be a couple hours and it'll shut off. And ...
2
votes
0answers
51 views

Acer Monitor - No Response to Power Supply?

Model No is S231HL, for reference. As I was packing to leave my dorm, I unplugged it for the first time in a long time. It was working just a few minutes before this. I then realized I wasn't sure ...
1
vote
1answer
30 views

my computer doesn't charge; the plug on my computer doesn't work

my computer NEVER works on just pure battery power. It always has to be plugged in. It always says "0% available. Not charging" but again, will work when its plugged in. Is this faulty ...
0
votes
0answers
70 views

My new motherboard doesn't start

I've purchased the following components for a new machine: Asus Z9PR-D12, Be Quiet! E9-580W 80+ Gold, Intel Xeon E5-2620 2.1 GHz, Crucial 16 GB DDR3 1333 MHz CL9 ECC Registered. I assembled the ...
0
votes
1answer
241 views

Checking if NVIDIA graphic card crashes due to an underpowered PSU

I've started playing some newer games lately and encountered frequent, intermittent crashes printing errors such as DXGI_ERROR_DEVICE_HUNG, DXGI_ERROR_DEVICE_REMOVED, or similar. Researching reduced ...
6
votes
1answer
188 views

Debugging a “Somewhat” Faulty PC Component

TL;DR: I have a component that fails very infrequently, preventing my computer from POSTing (I am suspicious that this may be a motherboard issue). Since I cannot reliably reproduce this error, what ...
2
votes
1answer
58 views

Computer is OFF, and fans turn on and off twice a day

We have an OptiPlex 755 desktop acting quite strangely here. It's powered off, not in standby or hibernate, and from time to time it will just start spinning its fans for a few seconds, and then turn ...
0
votes
0answers
143 views

Lenovo G570 does not startup

My lenovo g570 doesn't power up either it is on AC or battery, the AC light starts to fluctuate as soon as it's plugged in the computer, but the light on the laptop doesn't light up...when charger is ...
1
vote
1answer
110 views

My computer will not turn on

I recently built a gaming PC. It was working fine before the following events: I installed a graphics card driver update then: in Windows it said that the User Experience Index needed to be refreshed, ...
0
votes
0answers
85 views

Shaky pointer issue on a PC

I have a strange issue that is driving me mad. My girlfriend has a computer with this hardware specs: Asus P5QL-E Rev.2.05G Sockel 775 Mainboard Thermaltake 600W Intel e7500 Corsair ddr2 2x2Gb 800mhz ...
0
votes
1answer
735 views

How can a power supply (PSU) fail to power a motherboard but still test as “OK”?

I'll start by apologizing for asking another question on a topic which obviously pops up over and over and over again. I tried to locate an existing answer matching my situation, but I did not. If you ...
0
votes
1answer
216 views

I may have fried two completely different computers

I have two computers: my main one, and an older one. Currently, both are fully hooked up, and neither will respond when the power button is pressed or held. No fans, no lights, no sign at all. Prior ...
1
vote
2answers
7k views

What is the function/purpose of the pinhole on the battery of a Samsung Series 5 ultrabook?

Some background (not entirely relevent to main question): I can't find my specific model of laptop online but it has all the same specs as this excluding the touchscreen: http://bit.ly/18netZQ It's a ...
1
vote
0answers
408 views

My desktop won't boot or turn off, and there's no output - is it an issue with the motherboard or the PSU?

I have a desktop that won't boot, and the monitor doesn't turn on. The weird thing is as soon as you plug the computer, it turns on and then you can't turn it off. There's no light on the board to ...
-1
votes
1answer
67 views

How to determine why computer won't turn on? [closed]

I have a PC that I built myself (parts list). It has for a number of months refused to turn back on after there's a power failure. I've had to pull the plug out of the back, and then plug it back in ...
1
vote
1answer
128 views

Debugging a laptop that won't turn on

When laptop won't turn on, how do I figure out which of these issues might it be? Power Button The AC plug The Motherboard Are there some tools or ways to debug and narrow down the cause. And how ...
2
votes
0answers
44 views

PSU and motherboard power up failure [duplicate]

My girlfriend's computer is not booting any more. Here is a list of the hardware and the tests I've made so far: MB: Asus P5QL-E PSU: Thermaltake Toughpower 600W First failure: the PC was off, ...
3
votes
2answers
297 views

PSU cannot provide enough power

I've semi-recently built a new Linux rig for A/V editing and the occasional gaming. On some games I've experienced consistent reboots with high graphics settings that, I believe, are due to PSU ...
-4
votes
1answer
317 views

Computer Randomly Powers Off

A few months ago my computer started randomly powering off, sometimes I would get a few hours, sometimes a few days. I first replaced the power supply (PC Power and Cooling Silencer Mk II) which ...
7
votes
2answers
499 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 ...
3
votes
1answer
177 views

Thermaltake PSU button won't stay in the “on” position

My Thermaltake Toughpower Grand 750W PSU (P/N TPG-750M like on their web page, but the design shown below) has a mechanical AC push button rather than an on/off switch, and after turning it off today ...
1
vote
0answers
215 views

What can cause “Reboot and select proper boot device” other than hard drive issues?

I'm having some weird issues with my computer that I'd be hugely appreciative if someone can help me troubleshoot. Recently, my HTPC will start fine, then after 20-30 minutes it will freeze up and ...
1
vote
2answers
192 views

New PSU New Issue, Fan, Hard drive, Disc Drive Start, Nothing Else

I've been in the chat for the past while and found nothing so I figured I'd come to the front page. For about 6-8 months I've had issues with my computer not starting when it was cold and even then ...
0
votes
2answers
2k views

Dell LATITUDE D630 won't power on. Need help diagnosing

So, I was using my laptop, which is indeed pretty old (Got it in '07). (As soon as I got it I replaced Windows Vista with XP.) Now, all of a sudden the computer powered off. The battery was almost ...
0
votes
1answer
20 views

PSU Issues - Antect 1000w Quattor

I have a server using a 1000w PSU from Antec. My Raid 6 was becoming degraded and I tried to repair without success. So I have looked at the drives and they are all operational. I have now found that ...
0
votes
1answer
491 views

Compaq Presario CQ40 unexpected turn off

My Compaq Presario CQ40 (yeah, its pretty old) suddenly turns off after about 1/2 - 1 hour usage without any notice or warning. The power cable and adapter works fine (indicator bulbs show that power ...
1
vote
1answer
62 views

Video card and PowerSupply problems, perhaps? I don't really know

I have an Asus M4A77TD PRO MoBo, and a Gigabyte Nvidia GTS250 as video card. For several months, I have been detecting some strange things: Random hangs for a period of time in all games, for a start. ...
3
votes
1answer
342 views

Potential “latent” damage after short circuit on video card?

Latent is probably not the right word. I dropped a short metal scrap on a running video card. Obviously not a very good idea. A small spark was seen, and the PSU automatically shut down itself. I ...
2
votes
2answers
847 views

What caused a capacitor in the power supply start smelling?

I was using my computer in the morning then later in the afternoon I noticed some bad smell coming from the power supply. As I checked in, I noticed that one of the big capacitors was leaking and dry. ...
1
vote
0answers
100 views

Unplugged the monitor power cord and monitor SVGA cable [closed]

I unplugged the monitor power cord and monitor SVGA cable to connect to another PC. After I went back to connect the power cord on my previous computer with SVGA cable again. But the PC is loading ...
0
votes
2answers
324 views

Computer doesn't start at all

I have a desktop computer that won't start at all, I had it for years, and now suddenly when I press the power button I get no beeps, no fans spinning, no hard disk spinning. And the amazing thing ...
0
votes
2answers
543 views

intermittent power up failure after shut down

My desktop with ASUS P5L-MX motherboard does not immediately want to boot up whenever it is completely shut down. When the switch is pressed there are no visible lights, fan motion or anything. It ...
0
votes
0answers
308 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
2answers
221 views

Re-cased my computer now the power plug keeps shorting

I've just re-cased my computer. I got the new case free and thought I'd be able to swap everything over myself but apparently I've done something wrong. I'm OK with components generally but wasn't ...
0
votes
2answers
2k views

Does a Samsung G3 Station external hard drive stop working when power supply is too high? [closed]

I have a Samsung G3 Station 2TB external hard drive (link to PDF specs here). It was working perfectly when I accidentally plugged it in my notebook's power source. Now, it doesn't work even with the ...
0
votes
0answers
127 views

Windows 7 remains powered on when restarting

I'm running windows 7 x64 on an MSI P67A-GD53 motherboard, in an Antec P280 Super Midi Towercase with a Corsair 650w PSU. I've just installed a second instance of windows 7 x64 on a separate disk ...
4
votes
2answers
630 views

Why does my computer randomly power off?

Situation: have a 6 year old PC but it powers off randomly, sometimes it will take a few hours, or sometimes it won't happen at all when it does happen, the system loses power, but the mobo power ...
3
votes
1answer
915 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 ...
0
votes
1answer
236 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 ...
2
votes
2answers
230 views

Is my PSU faulty?

My PC has recently started freezing, I've narrowed it down to the following facts (using DDR RAM): 2 modules in Single Channel mode, it takes some hours to freeze. 1 module in Single Channel mode, ...
0
votes
2answers
290 views

BSOD and flickering graphics on Windows 7 64bit [closed]

I recently purchased a new motherboard (Asus P8 Z68-V Pro) Processor (Intel Core i5 2500K) and 8gb of DDR3 RAM. Since installing these I have had a lot of problems with at first flickering graphics, ...
4
votes
1answer
165 views

Is it possible to get a chain burn of processors/mb?

The problem is as follows: I just got my dad's computer and have (had) a bunch of MBs, AM2 processor standing out. His AGP slot had some problems and the computer refused to start with a video card ...
1
vote
2answers
305 views

Repair damaged PSU fan

I knwo this sounds QUITE crazy (not for the techies though). I had a Chieftec 450W PSU which died after I "transported it" to my friend so he can use it afterwards. (Bought a new PSU so I didn't need ...
0
votes
3answers
3k views

Computer won't turn on, how to diagnose the problem?

So my computer, ASUS MB, ThermalTake PSU, won't turn on after shutting down last night. Short of taking out the powersupply and putting in a new one, are there any tricks to figuring out/fixing the ...
1
vote
3answers
343 views

New harddrives failing within weeks

I've experienced 8 hard disk failures in 3 months and have tried many things to solve the issue permanently but I have failed. I would like to know if you have any advice for me. System was running ...
2
votes
4answers
2k views

Would an underpowered power supply cause lockups?

I my quest to find out what on earth is causing random lockups, I'm starting to think it was the power supply. The reason is that the problems started soon after I put my graphics card (old Radeon ...