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1answer
35 views

Which driver causes the BSOD Driver Power State Failure?

I get a BSOD with DRIVER_POWER_STATE_FAILURE on my Dell laptop running Windows 7 SP1. It got replaced once, but that one has the same error. The BSOD occurs only when it tries to awake from energy ...
1
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0answers
11 views

How can I diagnose recurring but unpredictable brief system hangs?

Yesterday, I wiped my / folder and installed a new version of Linux over my old executables, retaining my data mounted on other partitions and drives. Since then, the system will periodically hang for ...
0
votes
1answer
19 views

Server automatically shuts down at night for no apparent reason

Since a couple of weeks, I find my Windows 2008 R2 Server down every morning. I have checked the battery and it is not the problem. I turn ON the machine and it works normally, until it shuts down on ...
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0answers
14 views

Logging diagnostics over usb [closed]

I have a robot run off an embedded Linux computer (specifically the NI-roboRIO) and I want to create a system for displaying diagnostics. What I would like is to have my code write to a dev file, ...
0
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0answers
11 views

What could cause heap corruption?

Preamble: I would assume that this is just a bug, but I've been having some mysterious problems with this machine, so this question is (partly) an attempt to rule out hardware as a likely cause. I've ...
0
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0answers
39 views

How can I figure out what's keeping my monitors from turning off?

For some reason my monitors won't turn off, and the screensaver never comes on - either in Windows, or at the lock screen. I'm on a desktop with two monitors, using an up to date Windows 8.1, drivers, ...
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0answers
68 views

Is my hard drive failing? Win 10 won't boot

My son's Windows 10 laptop won't boot, laptop fell a couple feet while powered up but booted fine right after that. A couple hours later it wouldn't boot, and got stuck after a few seconds on the ...
0
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0answers
22 views

After repairing my computer is there anyway I can know its fully functioning? [duplicate]

I dropped my laptop from approximately 1 foot in the air and it was subsequently repaired by a computer technician. He said there was some damage to the GPU. But after being repaired, I think the ...
0
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1answer
32 views

How can I run a diagnostic install on a Mac dmg?

I know how to do this in Windows, example in the commandline: msiexec /i gtk-sharp-2.12.22.msi /l*v c:\Users\anyuser\Documents\gtk-sharp-msi.log (Documentation: ...
0
votes
1answer
207 views

How to start Epsa Diagnostics for a Windows 10 based Dell Laptop?

I'm having trouble with some hardware due to which I am trying to start the Epsa diagnostics which is usually accessed from tapping the F12 key at the time of Boot at the dell Logo.But now after the ...
9
votes
1answer
22k views

diagnosing 100 percent disk usage in windows 10

Since updating to win 10, I'm experiencing issues with my disk usage. From time to time (sometimes every 10 minutes, sometimes once every few hours) my system becomes unresponsive because the disk ...
0
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0answers
74 views

Black line across screen on Dell Latitude E6430

I have been using Dell Latitude E6420 with Ubuntu 14.04 LTS from 2 months. Everything was working fine. Suddenly, black line on top of screen came and not going back. I tried to to take screen shot of ...
2
votes
1answer
18 views

Diagnose MS Word's for bottleneck(s)

When merging two different Word documents I sometimes get really odd errors. Sometimes in the error message is stated, that a font is missing, sometimes - "insufficient RAM or disk space", sometimes - ...
1
vote
1answer
196 views

SMART Extended Self Test on a new Hard Disk

Is it normal that the SMART extended self test to run for hours on a new hard disk. So far, the test is running on my laptop for 2 hours. What is it doing? If I stop the test, will it damage the hard ...
1
vote
1answer
138 views

I'm in the US and computer only works when power supply is in 230V position. How do I diagnose this?

So, I replaced a computer PSU about six months ago. And, the computer power down intermittently. I've found: it's not over heating. Monitor shows it running cool. it's not graphics related. ...
2
votes
1answer
38 views

Testing hardware in computer that fails to POST

With a computer that powers on and runs its fan, but doesn't get any further, what would be useful troubleshooting steps and diagnostic equipment (if any)? It seems undamaged to look at, and the user ...
1
vote
1answer
103 views

What can cause PCIe graphics cards to randomly fail during boot?

I have a system that's currently driving me crazy, and I'm hoping someone out here on StackExchange will be able to point out something I'm doing wrong. The computer is home-built and consists of: ...
2
votes
2answers
86 views

How to get specific details on memory problems in Windows 7

Solution found below; will mark as answer when able Within the last week, I've been gettings some BSODs with a MEMORY_MANAGEMENT code. I ran the Windows Memory Diagnostic tool, and within a second of ...
9
votes
5answers
830 views

What ports are used by an application [duplicate]

I'm testing an application which opens its own ports (acts as a server for these ports, hence listens at that ports) and where the same application connects to ports bound by other applications (acts ...
0
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0answers
16 views

What diagnostics are available for a General Protection Fault from an old Windows program?

I have run an old (1996) Windows program that accesses DBF files. If I run with an old copy of the database it works fine. But if I run with my current copy of the database, I get the GP Fault when ...
1
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1answer
358 views

Intel server motherboard S1200V3RPS diagostic LED displays unlisted POST code

After some initial hiccups, I was able to get the Intel motherboard to at least power up. Now it does not start the boot process. I tried to understand the LED displays which explain problems ...
-1
votes
1answer
75 views

What to do with this defective hard drive, recognized by BIOS but not by OS?

I’m trying to recover a 2.5-inch Toshiba HDD drive from a laptop, which suddenly stopped working. When powered on, the disk was totally silent and thus not spinning anymore. Since it is out of ...
0
votes
2answers
92 views

computer suddenly loses power: no event of the shutdown [closed]

I'm looking for some diagnostic advice. computer was assembled 2 years ago, no issues since. symptoms: computer randomly loses power (usually happens in 2's. IE computer suddenly loses power. I ...
0
votes
0answers
21 views

Why does my system show lots of memory being used when the total amount is way less than reported? [duplicate]

I don't know if the title makes sense but Windows reports 7GB of memory being used but when I check the task manager I don't anything close to this amount being used. Here is the pic where the apps ...
0
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0answers
36 views

Getting syntax error messages with NTDSUTIL switches

Does anyone know how to properly input the switches for this command? I am on one of my domain controllers: Start>Run>Ntdsutil Then I try activating the command with ac i & activate instance ntds ...
0
votes
0answers
15 views

What could be causing my laptop to lock up? [duplicate]

My laptop has a problem of locking programs randomly crashing. I ran a diagnostics test through my bios and a thorough memtest through my bios. I installed a clean version of Kubuntu on it recently, ...
0
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1answer
102 views

Smart disk error?

I performed disk tests with DLGDIAG and HDAT2 and none found bad sectors, but there is a !Smart error flag in HDAT2, What does this mean? Here's a screenshot.
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3answers
195 views

Poor performance with large .txt

Is there an inherent bug in the design of .txt that signficant performance drops can be experienced when working with relatively large files? Working with a file of over a million characters on ...
1
vote
1answer
61 views

Many BSODs - where to look for the explanation?

I have recently been getting a lot of blue screen of deaths with various errors (see this for a crash report created with the WhoCrashed software). The many MEMORY_MANAGEMENT errors made me think it ...
0
votes
1answer
39 views

Different results with Memtest86

I've recently run a Memtest on my computer which have 2 x 4gb DDR3 RAM sticks due to a lot of MEMORY_MANAGEMENT bsods. The result showed 4 errors in a run of 10,5 hours (8 passes) so clearly something ...
3
votes
1answer
149 views

Computer won't start unless power is removed for ~2 hours

About 6 months ago I built myself a desktop. A few weeks ago the computer started to act strange, for example it wouldn't always give a video signal when it came out of sleep. Now the issue has ...
6
votes
2answers
599 views

PC fails to boot after a knock to the top of its case

I accidentally knocked off a small block of fools' gold on-top of my computer case, but didn't actually hit anything inside (since the case was open), and now the computer is having serious stability ...
6
votes
2answers
2k views

99% CPU on Win8.1, Can't find offending process

For the last several weeks my laptop is running at 99% CPU, and have been unable to find the offending process. Task manager shows 99%, with no one process using all the CPU, it cycles between ...
1
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2answers
132 views

Diagnosing random, temporary computer “pauses”

My computer that I use every day has had the problem for over a year where periodically (between once and six times per day) it will become mostly unresponsive for a short period of time. This is ...
1
vote
2answers
1k views

How can I see how much my CPU is being throttled?

Windows has a feature which can be set from the Power Options menu where the CPU is automatically throttled according to usage in order to save power. How can I view this throttling in real time? For ...
0
votes
1answer
59 views

Windows 8 Hardware Diagnostics

I have a new high spec. Windows 8 Pro work station that has now BSOD three times in 5 days due to NTFS problems. Is there a tool I can leave running after work that try to determine the root cause of ...
2
votes
0answers
35 views

Best practise for debbuging hdd

I just logged onto my machine when suddenly ls gave me an Input/output error. After rebooting the machine /dev/sda1 could not be mounted. dmesg results in : [ 545.691453] EXT4-fs (sda): VFS: Can't ...
1
vote
4answers
2k views

ASUS RT-N66U how to identify source of traffic spike

I have an ASUS RT-N66U as my home router. We are experiencing some traffic spikes in downloading over WiFi that slow all other activity to a crawl. Is there a way to identify the source (ip/host) of ...
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votes
1answer
125 views

Diagnosing Motherboard/CPU/ (most likely) GPU

OK, so I am trying to salvage my Mum's old PC for which she had bought a new power supply. After that it worked for a long time. After that time, it wouldn't boot (fans would come on very loud, power ...
0
votes
0answers
41 views

Windows 7 Bluecreen Diagnosis

I have been getting these bluescreens once or twice every month and I have no idea whats causing it. Is there anyone who can show me how to diagnose it?
1
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0answers
37 views

Diagnostic puzzle - laptop randomly fails at OS startup

I have a problem which has been bothering me for a year now and I would be grateful if somebody could help me. I will try to be as brief and concise as possible: Laptop: HP Probook 4525s, HDD 160GB, ...
0
votes
0answers
663 views

xbootmgr failing to run a trace, couldn't find a kernel logger

I am attempting to run a boot trace on a computer that is slow to log in using xbootmgr. It is a Windows 7 Professional computer that is on a domain. Based on the guide on this website: ...
1
vote
1answer
948 views

What HDD diagnostic tool to trust?

I recently purchased external HDD (Samsung M3 Portable External Drive 1TB). I run basic diagnostic tests with SeaTools for Windows and unfortunately Short DST and Short Generic tests fail. I then ...
0
votes
5answers
239 views

Easiest way for non-technical beta testers to gather system information of their PC?

I am starting beta testing on a new Windows application and since it does 3D rendering, system specification can be important especially as I am targeting business users; business laptops often have ...
12
votes
2answers
35k views

How to find out what is running on localhost port

I have something running at port 9090 on my local machine. It's probably something I set up long ago and forgot about... how can I find out what it is? I am using Windows 8.
1
vote
2answers
108 views

Dropped my netbook, how can I diagnose any issues caused

After I picked it up from the ground I heard what sounded like the HDD clicking, and then the operating system (Windows 7) started being very very sluggish. After a few minutes of closing programs ...
0
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2answers
5k views

Microsoft Sculpt keyboard malfunctioning (system conflict?)

I have Win7 x32 on my office desktop PC and recently I bought Microsoft Sculpt Ergonomic Desktop which consists of wireless mice, keyboard and numpad. The communication between these input devices is ...
1
vote
1answer
222 views

How to determine number of colours (bit per pixel) in X11

How can I see how many bits per pixel are actually available in a running X11 session?
1
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1answer
54 views

What piece of hardware has failed?

The other day I set some video files converting, around 15 minutes later I noticed that the PC had turned off and the 2 front LEDs were flashing. I turned the power off and restarted it (The GPU made ...
1
vote
4answers
1k views

What's a good test for a very non-geek to verify dropped packets?

TL;DR: Need a URL that can show a very non-technical, near technophobe, whether they have dropped packets. So me and some non-local relatives chat via Skype. While I was visiting, I swapped out their ...