System freezing up and grinding to a halt

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1 Feb 2004
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Hey guys, my mates having a real bad problem with his system and I'm stumped on what the cause is:

Processor: AMD Athlon 64 3700 San Deigo skt 939
Motherboard: Asus A8N-E NForce 4 Motherboard
Memory: 1Gb Twin-X Dual Channel Corsair DDR400
HDD: 200Gb IDE Seagate Barracuda 8mb cache
Graphics: Geforce MSI 6800GS 256mb
Display: 19" Samsung TFT 8ms 1280x1024
PSU: Antec Dual Rail 450W PSU


The actual issue with the computer is, earlier on today it began to lag real bad with applications I was using, for example web browsers, word processing (typing within word), MSN (typing tomessage someone on MSN, the text I entered that then gets displayed within the window before I send it was delayed displaying after I'd typed it) etc.

But now instead of just lagging and then after a minute or two catching up to speed, now it grinds to a complete halt altogether and I have to restart it, switch it off etc. Only once during a halt problem have I recieved the blue screen and it wasnt displayed long enough for me to read it.

I have done various things to try and resolve this issue and they are the following:

1.) Disconnected all cables from the motherboard and reconnected them making sure they're all snug and fine, also checked they are snug and fine in the back of each component e.g. HDD, DVD Roms etc. Taken out the memory and swapped the slots they are in, taken out the graphics card and reslotted it back in. The only thing I havent touched yet is the CPU and the heatsync because they're an absolute tight ass fit and a bugger to put on and take off = Still slowed down to a halt, had to switch off / restart.

2.) Ran Memtest with both memory sticks in and the memtest finished successfully with NO faults what so ever. Booted up after having ran this test and the computer had halted a little while after having booted.

3.) Taken out memory stick 2 from slot 2 and ran with only memory stick 1 in slot 1 = Still slowed down to a halt, had to switch off / restart.

4.) Taken out memory stick 1 from slot 1, put memory stick 2 in slot 1 = Still slowed down to a halt, had to switch off / restart.

5.) Taken out memory stick 2, placed memory stick 1 in slot 2 = Still slowed down to a halt.

6.) Taken out memory stick 1, placed memory stick 2 in slot 2 = Still yet to crash / slow down to a halt, running on this method now. Well, it JUST lagged for a period of time right now, for the space of about a minute after I had opened, started to run, and then closed down 3D Mark 03. It seems if I run a big application like 3D Mark 03 and close it, then it bugs out. But it's also halted when I havent ran anything big so I'm kinda sure its not that. Has ran for the longest with one period of serious lag while doing this test.

Note: Havent overclocked, have been keeping an eye on the voltages and each time I have checked them they have been reading satisfactory. Have also kept an eye on the temperature of the motherboard, CPU and graphics card. Each time I have checked the CPU has been around or on 43C, the motherboard has been around or on 35C and the graphics card has been around or on 46C. Fans are all rotating absolutely fine.

The halts have been happening when I've been doing website coding only, chatting only (with only ICQ, IRC, Skype and MSN running), nothing (straight from reboot the computers at a halt and mouse motion is jaggidy and extremely lagged). The halts dont seem to be frequent nor on a certain time occurance, its random in both when it occurs, how heavy / light im using the machine and randomly via time too.

This issue has only been occuring today since working on my website and has gotten worse towards the night with no regards to what I'm doing on the computer,

Havent been able to run 3D Mark 03 all the way or even a little because it lags out and halts before I get the chance.

I'm thinking it has to be either the motherboard, the RAM, or both. Info on what board and RAM I have is:

RAM: 1 x Corsair (TWINX1024-3200C2PT) 1024MB (2 x 512MB Matched Pair), DDR400 / PC3200, non-ECC
MOBO: 1 x Asus A8N-E SKT 939 NFORCE 4 AUDIO LAN PCI-Express ATX

It JUST lagged out real bad right now but I managed to get my temp watcher program running and the CPU was still at 45C, the motherboard was still at 35C and the graphics card was at 46C.

Thought I'd add that I switched it on this morning after it being off all night and it worked fine with no lag for the half an hour that I was on it. So maybe it's a temp issue? But the temp of the mobo, cpu and graphics card seem to read fine using that Asus PC Probe.

Thanks for the help :)

Edit:

Also changed hdd and yet it still happens
 
Does your msn icon turn black, like a silhouette? and do things stop responding first such as IE or firefox and explorer?
 
Hmm sure nowts been overclocked?(or did he fiddle with bios/ram timings?) mates are good at that,and then not telling you.
Possible starters for 10 are:
Scan for virus/spyware,try clean boot
Use ps2 mouse/keyboard
Cmos reset
Nip into device manager and check if dma is enabled for everything.If anything is set to pio mode it`ll slow your system time big time(especially if its the hd).uninstall all ide channels/controller (don`t worry they re-detect dma without you losing anything on next boot)
Diff gfx card
and the one you don`t want to do but will end up doing anyway is clean/reseat cpu which solved my freezes.
Is system new?
 
Bones said:
Does your msn icon turn black, like a silhouette? and do things stop responding first such as IE or firefox and explorer?

Hey, I'm the friend of his having the computer problem. No the MSN icon doesnt alter, in most cases, I dont even have MSN running. Things do stop responding first, sometimes Firefox, sometimes skype (as those are the two main applications I run).

Formatted and even changed drives so its not a virus issue. All the hardware in the machine is running at factory settings, not overclocked. System is new, well, 5/6 months old. Reseated the CPU and also bought a Zalman heatsync for like £30. Just fitted the new heatsync now and so far so good. If it crashes again i'll post back. Going to downgrade the bios too as it ran fine on an older one and I have flashed it since then. Flash to new bios was done months ago so it wasnt that but I'm downgrading to make sure.
 
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