0
votes
0answers
18 views

My PC crashes without any message

Is aerocool e80-500W compatible with Haswells? Motherboard: asrock z87 extreme6 CPU: i7-4770 RAM is compatible with this MOBO. I disabled C-states in UEFI howerver it crashes sometimes CPU is not ...
2
votes
1answer
43 views

Weird alarm sounding on my computer when under load, but no overheating

I am having a rather odd hardware issue and to be honest, I am not quite sure what is causing it. I have been building my own systems for over 10 years and have all kinds of qualifications, but this ...
0
votes
0answers
81 views

35% Maximum Frequency in the Windows Resource Monitor

I have a problem with my CPU as it runs over 100% on battery yet it doesn't go beyond 35% when plugged in. Yes, I've checked power management options like a million times for high performance and ...
0
votes
2answers
99 views

Either my CPU, motherboard or PSU is bad. Which one is it?

I've asked a question here before, in December 2013, about a hard drive I wasn't sure whether it was bad. Turns out it was just a side effect from a bigger problem. Symptom: It started with Windows 7 ...
0
votes
0answers
14 views

Full CPU power with AC power and battery

How to check if my computer (Lenovo, Intel Core i5 running Windows 7 64bits) is running with full CPU power when both AC powered and battery-powered ? There are so many places (BIOS, Windows control ...
0
votes
2answers
102 views

Motherboard with no post code beeps

I was helping my son put together a new computer and we've run across a weird problem. We started with an msi motherboard, i7 processor, generic case, 8gb ballistic DDR3, and power supply. The ...
-2
votes
1answer
48 views

Is My Mobo Dead?

My desktop is on the fritz and I think my motherboard's (MSI 890FXA-GD70) to blame, but just to be sure I wanted to ask. It started with my CPU (AMD Phenom II 975 BE) clock spazzing out. It went from ...
0
votes
1answer
49 views

CPU - motherboard compatibilty issue

I have an old PC, that has AMD Sempron CPU on 1 GHz in it. And it works fine. I would like to try to upgrade CPU with one of the old CPU's I have, that are slightly better than current one. Those are ...
2
votes
1answer
380 views

how many amps on the PSU 12v rail is used by a motherboard and CPU?

How many amps on the 12V rail does the motherboard, CPU, and RAM use? And how to find out for specific boards? I imagine this would be a reasonably common question people have when designing a new ...
0
votes
2answers
235 views

Computer will freeze/ lock up after doing relatively stressful things

I'll first start off by saying that the issue GENERALLY doesn't occur unless I'm doing something remotely stressful for my computer. This issue used to occur whenever it felt it was necessary, however ...
0
votes
0answers
90 views

Mouse Hang with voltage fluctuation

I bought a new assembled PC about a month ago, but for the past 7 or 8 days I found my mouse cursor hangs every time there is a voltage fluctuation on my UPS (when sound comes from the ups the mouse ...
1
vote
0answers
234 views

Monitor in power saving mode while CPU is still running

I am have a problem with my LCD going into power saving mode. It all started about three days back by randomly going into power saving mode while PC is smoothly running. Then the frequency of going ...
0
votes
1answer
741 views

CPU fan turns on for a second and stops, PC does not start at all

I have checked my PSU and it works fine. When I turn on the MOBO, the CPU fan, case fans and the psu fan itself turn on for half a second and then turn off. The PC remains off. The Bios light turns ...
2
votes
1answer
153 views

Computer doesn't beep when starting with only motherboard, power supply, and CPU. Is the motherboard dead?

I recently purchased a motherboard with my graphics card and CPU. After installing everything, it starts up, but there is no output. When I stripped down to just the power supply, motherboard, and ...
0
votes
1answer
357 views

20+4 pin power supply to 24+4 pin motherboard [duplicate]

I'm thinking about making a small custom-build server. It would only use around 60W maximum. I don't want to pay too much so I think using an old power supply would work. The motherboard I'm ...
1
vote
1answer
82 views

Can an energy saving powerboard damage your computer?

Two months ago, I bought a Jackson Master/Slave Green Energy Saving Powerboard. I plugged my high-end gaming desktop computer into the master port, and the screen, speakers, etc. into the slave ...
0
votes
4answers
179 views

PC power usage related to power supply

Not sure if this is the right place to ask such a question, but I don't see a more relevant place on stack exchange otherwise. So recently I've become kind of obsessed with becoming more efficient ...
1
vote
0answers
305 views

Why does my computer shut down suddenly without any warning?

My computer is: Motherboard: MSI 970a-g45 CPU: AMD FX-8350 eight core processor 4.0 GHz Power Supply: TSCO 650 Watts I bought my CPU 2 days ago. My last CPU was an AMD Athlon 460 x3 3.4 GHz. After ...
1
vote
1answer
192 views

Power Supply wattage selection. Why 80 plus Bronze, Gold, Platinum?

I'm looking at building a file server and looking at getting a quiet, reliable power supply that can power two processors on a single board and run pretty much constantly. How would I select a power ...
-1
votes
1answer
242 views

Best SMPS wattage required for the below config? [closed]

We are planing to assemble a file server of the following configuration. Intel S2400SC2 Motherboard. Xeon 2407 Processor x 2 (Dual Processors) 8gb x 8 ECC DDR3 RAM One 2 TB Seagate HDD. 8 cabinet ...
1
vote
1answer
100 views

Fan at 5k rpm, CPU at 53 deg C, just in BIOS?

I've just built a small HTPC with the following: APEX MI-008 Black Steel Mini-ITX Tower Computer Case 250W Power Supply AMD A8-3870K Unlocked Llano 3.0GHz Socket FM1 100W Quad-Core Desktop APU (CPU ...
-2
votes
2answers
175 views

Central Processing System gets Hot

I have an Intel Desktop Board with an Intel Pentium D processor installed. My problem is that the processor stays warm when idle i.e. 55 degrees C . But under load the temperature rises drastically ...
0
votes
1answer
37 views

Dozens of spontaneous reboots

I am working on a SUSE Linux based system that runs 24/7 and has done so for around 3 years although I cannot say that it has not been rebooted in that time. At 9th June there apparently was some sort ...
2
votes
1answer
409 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. ...
0
votes
1answer
128 views

PC turns on for second [closed]

I bought a pc with the following spec like 1 nd a half year back! Processor : Intel Core i5 2500 MotherBoard : Intel DH67BL RAM : G-Skill RipjawsX 4GB HDD : 500GB Samsung Graphics Card : EVGA ...
-4
votes
1answer
273 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 ...
0
votes
0answers
54 views

Are idle tempatures on HWMonitor changing as much as 5 degrees in a second “normal”?

I'm monitoring my heat from about 7% CPU usage on a Core i5 - and HWMonitor is reporting temp. jumps as much as 5 degrees then within 500ms it jumps somewhere else again. Is this normal?
-1
votes
1answer
76 views

Extremely high pitched noise just came and went from my PC in the space of about 2-3 minutes

With my hearing I'm not totally sure but seemed to be coming from PSU/CPU area. Anyone know what would normally cause this temporary squealing? Gradually built up pitch and noise for about a minute ...
0
votes
3answers
78 views

Pc keeps shutting down for the first 10-20 minutes

My desktop pc keeps shutting down/freezing/rebooting itself (even in BIOS) in the first 10-20 minutes of activity, after that time it works properly. I looked into the windows event register but ...
1
vote
2answers
192 views

Building PC with old parts - Burning CPU Smell

Alright, so I'm trying to build a computer with some old parts I had lying around here. (which used to be a single computer already so they must be compatible if they were before) At first I tried to ...
3
votes
2answers
875 views

If there is no CPU in the motherboard, will the LED still be on?

Sorry if my question may have been answered somewhere else, but my google-fu is kind of weak. I have been trying to create a new setup recently. The PSU (700W) is known to work on other motherboards, ...
0
votes
2answers
531 views

Pc sometimes turns on sometimes not

Some time ago, the PC gave the same problem. It wouldn't turn on. When i pressed the button, it turned on but showed nothing. I had replaced the CPU and that seemed to work. I didn't use the PC that ...
1
vote
2answers
561 views

PC dies when running at 100% CPU

I recently wrote some Java code to generate images of the Mandelbrot set (fractal). I made use of the new Fork/Join facility in Java 7 to run separate threads on all four cores (2 real, 2 ...
0
votes
1answer
111 views

Gateway SX2300-01u CPU/PSU issues

I have a 2-yr-old Gateway SX2300-01u with an AMD Phenom X3 8550 that I feel has about a year or so of life left, but I am having a couple of hardware issues that I have not been able to resolve. ...
0
votes
2answers
2k views

Computer will not turn on after replacing CPU, PSU, and motherboard

I recently replaced the PSU, motherboard, and CPU after my computer shut off randomly. Now when I try to turn it on, I get no response. I've tried: Taking out the RAM A CMOS reset Swapping out the ...
0
votes
2answers
4k views

Computer doesn't start, green light indicating whether the PC is on doesn't show anything

I have a problem with my PC. These are the symptoms: CPU cooler makes 2x louder sounds Green light indicating whether the PC is on doesn't show anything. The PC is on. Red light (besides green one) ...
2
votes
2answers
1k 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 ...
5
votes
3answers
2k views

Should I worry about the noise my PC makes after installing a second GPU?

I recently installed a second graphics card (ATI 5770 in crossfire), and cleaned out a lot of dust from the PC. For some reason however the 'fan noise' is much louder, and I can only think of a few ...
4
votes
1answer
162 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 ...
2
votes
1answer
454 views

Will all 4 cores work if the PSU has 4-pin supply instead of EPS12V?

Motherboard: P7P55D-E PRO Processor : i5-760 PSU : Gigabyte Superb 460 The PSU provides a 4-pin CPU connector; whereas the m/b has an 8-pin socket (2 sockets are covered/protected by a ...
0
votes
2answers
323 views

550W PSU, i5 (3.2ghz), 8gb DDR3 and 12V Rail is at 8V

I was curious this morning about my temperature and voltage readings so I downloaded Speedfan and CPUID's Hardware Monitor. I have the following hardware CPU : i5 3.2GHZ RAM : 4 x 2GB DDR3 GPU : ...
2
votes
3answers
162 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 ...
0
votes
2answers
1k views

4-pin CPU power supply connector inversion?

I am currently trying to boot an Intel D915GAG motherboard fed by a Corsair HX450W. This PSU has two 4-pin processor power supply connectors available. I tried booting with either one of these plugged ...
0
votes
1answer
70 views

MB with CPU and power supply - can be turned on but not off

Not sure whether this question belongs here, I hope so. I have just bought a motherboard and CPU. I have installed the CPU, cooler and connected to CPUFAN on the MB. I have plugged the power supply to ...
1
vote
2answers
635 views

My computer makes weird sounds that you can only hear through a speaker

I recently got a brand new computer. Everything was fine until I plugged my electric guitar into my amp. When I switch on my guitar amp (guitar speaker) I can hear a weird noise. It sounds like the ...
11
votes
2answers
327 views

My 386sx refuses to start in cold days

My old computer refuses to start in cold days. So, in really hot days (about 40ºC / 104ºF ) or even hotter, this PC usually starts, but in cold days, it wont. When the temperature is not in the ...
2
votes
1answer
678 views

Why would only the cpu fan not spin and no video displayed?

I just built a new computer and when I first powered it on I got a continuous beeping which according to the manual means a power failure. After moving the voltage switch to the left a little I was ...
1
vote
3answers
3k 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 ...
0
votes
3answers
218 views

CPU not powering up

Tried disconnecting the PSU and checked it by shorting green and black wires. It is working. However, when I connect it back to the motherboard and try to switch on the computer, all I hear is a faint ...
2
votes
4answers
353 views

Newly built PC powers off after 3 minutes…won't power back on instantly

I recently replaced my motherboard, processor, memory, and power supply. After powering up and running for approx. 3 minutes, the rig shuts down, like somebody pulled the cord out of the wall. It ...