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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 ...
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
456 views

Test for intermittent communication drops between machines

I am trying to diagnose intermittent communication drops between a computer and another networked piece of equipment. Can someone recommend me any tool or method to do this? Sure I can set up a ping ...
7
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1answer
1k views

What can I do if my dasKeyboard has dead keys?

I have an out-of-warranty dasKeyboard Professional (with Cherry MX Blue key switches). I acquired this keyboard as a new replacement in a warranty keyboard swap. Their warranty service is very slow ...
2
votes
1answer
39 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
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1answer
106 views

How do diagnose stuttering performance in games without buying replacement hardware?

I own a reasonably high performance, although a bit outdated (4 years), computer and have been, for some time, experiencing bad performance and about 1 second freezes on all of the games I play. I ...
1
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1answer
136 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: ...
1
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1answer
1k views

Diagnosing / Servicing A Notebook GPU

I have a GPU (a GTX 260M) that is causing windows to lockup. I was talking to a service rep from the notebook manufacturer and they said typically the technicians go through this process: Usually ...
1
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1answer
323 views

Bluray LightScribe drive slowly dying - any recommended fixes?

I'm getting sporadically functioning Bluray drive in my HP DV5T laptop. Anybody have any ideas that I could use to get it working again, short of replacing it? Here is the history I tried with it ...
1
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1answer
155 views

Where do I start diagnosing a RAID drive that won't come up?

I've had this Cavalry 4TB RAID drive connected via eSATA to a Win2003 box for a year or two, and it's not coming up any more (can't see it in Explorer, or in disk management). I've also tried ...
1
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1answer
203 views

Network / Internet diagnostic tool to locate an error?

I’m facing some difficulties with the Internet / network at my work and I have trouble locating the precise error and when and how it occurs. The problem is that the client machines in the house ...
0
votes
1answer
46 views

Do I need to replace my laptop's HDD? (GSmartControl analysis)

I've got an ASUS laptop that is 5 years old already, never had a problem with it. After some weeks with it being not as responsive as usual, yesterday I formatted and repartitioned the HDD, and gave ...
0
votes
1answer
401 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 ...
0
votes
1answer
565 views

diagnostic software for wifi adapter

I'm having trouble with my wifi connection. Is there any software out there that can help me determine if the problem is in the drivers or in the hardware? Regretfully, I'm working on Vista Edit: ...
-1
votes
1answer
36 views

Find a website at some geographical location

The http responses returned from my server are very slow. After testing a number of things out, I suspect some router along the way has implemented a firewall to inspect higher level protocol data, ...
3
votes
0answers
732 views

Did I brick my pogoplug?

I just received a POGO-P21 and followed the archlinux installation instructions. Got to step 12 without any trouble or error message. Rebooted the device, and now it won't come up. Good news: ...
3
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0answers
138 views

Game runs flawlessly with YouTube video running and is unplayable otherwise

This sounds crazy but I've tested this several times and it is completely reproduce-able. If a YouTube video is not running in the background Skyrim takes approximately 2 minutes to load and the ...
2
votes
0answers
37 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 ...
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0answers
32 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 ...
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, ...
1
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0answers
330 views

ODX car diagnostic file editor

Is there any freeware/open source alternative to ODXStudio and VisualODX? I'm looking for software to create and edit ODX files (ECU diagnostics descriptions) for free. There are several freeware ...
1
vote
0answers
6k views

Can’t get Seagate Seatools to do a thorough test of a 1TB SATA drive

I have a Seagate 1TB HD set up as my boot drive, and according to its SMART parameters, it’s starting to fail: the “Reallocated sectors count” is at 458 (and has been increasing for the last months), ...
1
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0answers
174 views

Track what is requesting a shutdown event

We have a workstation at work that is on a domain. Every night at the same time it is shutting down by itself. We have stepped through the normal list of items that might request a shutdown and have ...
1
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0answers
337 views

How to diagnose the cause of losing connections in WLAN?

Recently I brought my laptop from my work to my appartment. At work the laptop works perfectly in WLAN, but at home I have the following problems with WLAN: When streaming movie from YouTube, the ...
0
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0answers
39 views

Interpreting results of windows memory diagnostics

I've been having some troubles with my computer lately, and tonight ran the windows memory diagnostic. I ran the extended test. It completed not showing any errors during the run, however I don't ...
0
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0answers
3k views

What can explain a large usage of shareable memory on Windows?

I notice that 6.5 GB of my RAM is used as "shareable" memory. What can explain such a large usage? I tried to list processes by size if shareable memory in the Resource Monitor, but I don't see ...
0
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0answers
264 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
votes
0answers
295 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, ...
0
votes
0answers
365 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
votes
0answers
93 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 ...
0
votes
0answers
17 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 ...
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?
0
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0answers
729 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: ...
0
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0answers
25 views

Test performance of a computer for maximum concurrent user allowance?

How can I test a pc to see how many concurrent users it can handle without performance issues? The users will be limited to 6 webpages or Tabs open and no audio/video streaming or downloading. Any ...
0
votes
0answers
235 views

Diagnose failure in Dell d630

A Dell d630 is showing signs of failure: On startup, often nothing is seen on screen. it's about 50:50 if it starts up fine or does nothing Plugging in an external monitor when nothing appeared, we ...
0
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0answers
3k views

Increase ramdrive memory for Hiren Boot CD

Does anyone know how to increase partition for Ramdrive R: for Hiren Boot CD ? I installed a new Program with more than 64mb and I cannot run it. By default it's size in 64mb. IF not where I Could ...