Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.




118 posts

Master Geek


#112325 5-Dec-2012 07:17
Send private message

I have a 3 year old PC that has started freezing randomly and I'd appreciate help figuring out how to fix it.

The problem started when I moved the PC to a different location in the house. The PC freezes only when it is doing something. That is, if it is left sitting at the desktop with no applications open and with the screen saver off, then it is fine. It is also fine when left sitting in safe mode. But if it is doing something - like installing Windows, web browsing, or even just running the screen saver with no applications open - then it freezes at seemingly random times.

When it freezes, the screen is unresponsive, the hard drive is inactive, and the mouse's light has switched off.

Things I have tried, with no effect:
- Swapped to a different hard drive.
- A fresh install of Windows 7 64-bit on the different hard drive. Minimal software installed, though with 100+ Windows updates.
- Swapped to a different video card.
- Removed and reinserted the RAM.
- Disconnected the network cable.
- Changed to a different keyboard and mouse (first set was wireless, second set is USB).
- Run the Windows memory test, which was OK.
- Run burn-in software that tests the CPU and RAM at 100% for 8 hours (with screen saver off), with no errors.

Any suggestions about what the problem might be and how to fix it?

Create new topic
Hawkes Bay
8477 posts

Uber Geek

Mod Emeritus
Trusted
Lifetime subscriber

  #727185 5-Dec-2012 07:55
Send private message

Google the heck out of all your components looking for known freezing issues.
Try a different brand of operating system and see if the problem occurs.
Try a different PSU.
Check your BIOS settings - anything funky? Overclocked? Maybe reset BIOS settings to factory.
Check motherboard carefully in good light - any foreign objects, burn-out marks, excess dust etc.
Check all fans are working.







1553 posts

Uber Geek


  #727186 5-Dec-2012 07:57
Send private message

I had this problem awhile ago, did all the tests like you did, right down to checking the temps of CPU etc. 
All were good. After a bit of searching, I ended up changing the power options in control panel to high performance and since then haven't had any more freezes. 



 
 
 
 


BDFL - Memuneh
66268 posts

Uber Geek

Administrator
Trusted
Geekzone
Lifetime subscriber

  #727187 5-Dec-2012 07:57
Send private message

Make sure the fans have no obstructions, no dust accumulated on anything, no obstructions in vents, thermal paste applied on processor...





gzt

11181 posts

Uber Geek

Lifetime subscriber

  #727188 5-Dec-2012 07:59
Send private message

The only ram test I will trust must run outside the operating system - http://www.memtest.org. Recommend bootable iso.

What is the exact model of your pc and or motherboard?

227 posts

Master Geek


  #727192 5-Dec-2012 08:02

Possibly a heat/ventilation problem. I only mention it because the problem occurred after you moved the PC.

Check that all the fans are running ie. CPU, case and power supply. Also check that there's no dust build up inside the case.

There's some good reading on the subject here:

http://static.highspeedbackbone.net/html/guide_Basic_PC_Cooling.html

605 posts

Ultimate Geek

Trusted
Lifetime subscriber

  #727265 5-Dec-2012 09:46
Send private message

seems you have done everything you should do... id be looking at the CAPS on the system board, check for bulging tops or signs of leaking. google search your system board and badcaps and see if its known for poor quality CAPS.

5 posts

Wannabe Geek


  #727307 5-Dec-2012 11:00
Send private message

Make sure you have a power supply that can handle all of your components, make sure the CPU isn't overheating (There is usually something in your bios that lets you see the temperature), make sure there is no dust inside your case, otherwise this sounds like a motherboard problem to me.

 
 
 
 




118 posts

Master Geek


  #727614 5-Dec-2012 20:04
Send private message

Thanks for your suggestions.

The PC is a custom build that was worked fine for 3 years. The fans and temperatures are OK. It did get noticeably warmer when running the CPU at 100% for hours, but had no stability problems when doing so.

Neither the CPU nor the GPU have been overclocked. The memory test was OK. The motherboard is clean, with minimal dust and no obvious burn marks or other flaws. I've tried various Windows power settings and turned off things like wake on mouse/keyboard/network.

I also reset the bios to defaults - which caused Windows to say that a floppy drive had been found and installed. Rather odd, given that the PC doesn't have a floppy drive. But apart from that, no effect.

And yet it still freezes randomly.

I'm out of ideas, other than a suspicion that it is probably a hardware fault (possibly caused when I moved the PC). Unfortunately I don't have suitable spare parts to swap out the PSU, RAM, CPU or motherboard, so I suppose the next step is to let a professional PC repairer have a go.

gzt

11181 posts

Uber Geek

Lifetime subscriber

  #727616 5-Dec-2012 20:09
Send private message

Ouranos: The memory test was OK.


You used memtestx86+ ?



118 posts

Master Geek


  #727632 5-Dec-2012 21:04
Send private message

gzt:
Ouranos: The memory test was OK.


You used memtestx86+ ?

Yes. No errors.

Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Huawei introduces the P40 Series of Android-based smartphones
Posted 31-Mar-2020 17:03


Samsung Galaxy Z Flip now available for pre-order in New Zealand
Posted 31-Mar-2020 16:39


New online learning platform for kids stuck at home during COVID-19 lockdown
Posted 26-Mar-2020 21:35


New 5G Nokia smartphone unveiled as portfolio expands
Posted 26-Mar-2020 17:11


D-Link ANZ launches wireless AC1200 4G LTE router
Posted 26-Mar-2020 16:32


Ring introduces two new video doorbells and new pre-roll technology
Posted 17-Mar-2020 16:59


OPPO uncovers flagship Find X2 Pro smartphone
Posted 17-Mar-2020 16:54


D-Link COVR-2202 mesh Wi-Fi system now protected by McAfee
Posted 17-Mar-2020 16:00


Spark Sport opens its platform up to all New Zealanders at no charge
Posted 17-Mar-2020 10:04


Spark launches 5G Starter Fund
Posted 8-Mar-2020 19:19


TRENDnet launches high-performance WiFi Mesh Router System
Posted 5-Mar-2020 08:48


Sony boosts full-frame lens line-up with introduction of FE 20mm F1.8 G large-aperture ultra-wide-angle prime Lens
Posted 5-Mar-2020 08:44


Vector and Spark teamed up on smart metering initiative
Posted 5-Mar-2020 08:42


Schneider Electric launches new PDL Pro Series designed specifically for the commercial building market
Posted 5-Mar-2020 08:39


Kiwi app Pedigree DentaStix Studios uses pet images to counter impact of negative social media Content
Posted 5-Mar-2020 08:32



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.