My computer crashes when i leave it on at night
 

Ive been have a problem with my new pc ive built and would like some help please. all the info is below hopefully. So i built my first computer and the only problem i have is the computer is it crashing when its left for long periods like say 3 hours at least in screen saver mode, so i ive disconnected my dvd rom from the mother board and my spare hard drive that runs of IDE, it runs fine with out them conected but when i put them back in it crashes the following night, it really only seems to crash when im asleep. it runs fine all day ideas ive tested the cpu on a test at 100 to see if it crashed and nothing



Mother board ASUS M2N68



OS Name Microsoft Windows XP Professional


Version 5.1.2600 Service Pack 2 Build 2600


System Type X86-based PC



amd athlon 64X2 Dual core processor 6000+

3.10 GHz



2 Gig of ram


Graphics card nvidia Geforce 9500 GT super/512 mb / 128 bit /DDR2



Hitachi HDP72505050GLA360 500 GIg HARD DRIVE SATA CONECTION



DVD burner light scribe LG SATA CONECTION


My power options are set to never so then it crashes on my desktop, my power supply is 400 watt and i think the make is i cute.

cpu temp 54c/125f

mb temp 38c/100f

fan auto mode start speed temp 25c

fan auto mode full speed temp 70c

cpu fan speed 4927 rpm

vcore voltage 1.488v
3.3v voltage 3.328v
5v voltage 4.966v
12v voltage 11.734v

fan auto start voltage 5.0 v

Re: My computer crashes when i leave it on at night
 

is it trying to get into sleep mode? when you say it crashes what does it do? BSOD? switches off? are there any signs of possible short powercuts?

Re: My computer crashes when i leave it on at night
 

well it crashes in sleep mode when left for a long time so i set it to never to come on and it still crashes, it just freezes on what its on and you cant do anything, but this only happens when my dvd rom is conected

Re: My computer crashes when i leave it on at night
 

Disconnect the Dvd rom, i`ve known failing optical drives to cause the pc to go tits up.

Re: My computer crashes when i leave it on at night
 

i did disconnect my dvd rom and it works fine with out it and doesn't crash and im on my 3rd new dvd rom drive also i have a 2nd hard drive which i connect with ide cable it also crashes the computer

Re: My computer crashes when i leave it on at night
 

faulty cable then?

Re: My computer crashes when i leave it on at night
 

Ive tried different cables but no luck still the same problem

Re: My computer crashes when i leave it on at night
 

is anything kicking off overnight like a scheduled AV scan? as you say its stays on all day and only goes off when unattended. ? I would say perhaps its a controller fault but that would effect it at different times

Re: My computer crashes when i leave it on at night
 

My AV is set to go off at 16 15 every day so its done before the night.

Re: My computer crashes when i leave it on at night
 

Do you connect the spare hard drive and the dvd rom together and put them back in or connect one and try it then the other?
I`m just thinking that the spare Hard drive could be failing.

Windows update does`nt download, install updates and then turn the PC off does it? Just a thought.

Re: My computer crashes when i leave it on at night
 

sorry i took so long my Internet went down, ive only just added the hard drive in the last few days and ive been having this problem for a while, i first had a ide dvd rom drive with no sata so i then got another dvd rom drive this time sata and still the same problem, then i got another drive and still the same and ive just added the hard drive and it crashes it same as the dvd rom drive. no about the windows update

Re: My computer crashes when i leave it on at night
 

check event viewer

Re: My computer crashes when i leave it on at night
 

I already have can't find no fatal errors.

Re: My computer crashes when i leave it on at night
 

Go into the hardware properties and make sure ur HD is using DMA not pio, via the IDE ATA/ ATAPI Controllers.

If that is already set to DMA, Then try running your pc in safemode with all devices conected over night and see what happens.

Also set your bios to Default before doing this as windows could also be fighting with the Bios which is therefore making it crash. Doubtfull but worth a try

If it runs fine in safemode over night, then reboot as normal not into safemode and then leave it again over night but still @ bios defaults. Also make sure your power settings do not turn the hd's off after a certain time of being idle. Set them to max power settings.

keep us posted :D

Re: My computer crashes when i leave it on at night
 

As its happening when you are adding extra load to the power supply, I would suggest getting hold of HWMonitor (http://www.cpuid.com/hwmonitor.php) or similar. So you can look at how stable the voltages are coming out of the PSU. I think it's the 12V and 5V values you need to look at for CD-rom and HDD drives

Plus to me your CPU temp looks high @ 54°C, shouldn't it be running @ around 40ish. Also the above will monitor temperatures
CPU specs: http://www.cpu-world.com/CPUs/K8/AMD...000CZBOX).html (Max temp. 55 - 63°C)

If you leave the HW Monitor running it will log Min / Max values and if your PC freezes you should be able to see what values you're getting, as long as you don't have a screensaver that is.

Re: My computer crashes when i leave it on at night
 

but its freezing when the pc is not underload ie overnight when the optical and extra hdds are doing nothing

Re: My computer crashes when i leave it on at night
 

thanks for getting back to me i will try these out and get back to you, yea its newt to do with overloading

Re: My computer crashes when i leave it on at night
 

Here are some voltages thru the night can you see anything bad also i run it in safe mode with my dvd rom drive and it didnt crash


================================================== =
ASUS PC Probe II

Alert Log Report

Number = 12
================================================== =

[02/20/2009 at 12:30 am] Vcore Voltage Abnormal, 2.03 V
[02/20/2009 at 12:30 am] Vcore Voltage become normal, 1.50 V
[02/20/2009 at 02:29 am] Vcore Voltage Abnormal, 3.04 V
[02/20/2009 at 02:29 am] Vcore Voltage become normal, 1.49 V
[02/20/2009 at 05:01 am] +3.3 Voltage Abnormal, 0.11 V
[02/20/2009 at 05:01 am] +3.3 Voltage become normal, 3.36 V
[02/20/2009 at 06:21 am] Vcore Voltage Abnormal, 2.03 V
[02/20/2009 at 06:21 am] Vcore Voltage become normal, 1.49 V
[02/20/2009 at 06:32 am] Vcore Voltage Abnormal, 3.50 V
[02/20/2009 at 06:32 am] Vcore Voltage become normal, 1.49 V
[02/20/2009 at 06:37 am] +12 Voltage Abnormal, 7.72 V
[02/20/2009 at 06:37 am] +12 Voltage become normal, 11.80 V

Re: My computer crashes when i leave it on at night
 

well they drop off quite a lot

Have you investigated if something is kicking off in the night? sometimes VAs or spyware programs run a default scan at certain times?

Re: My computer crashes when i leave it on at night
 

yea i check them and turn them off any way, so nothing should be kicking off on another site they said my temp was to hot and i should get some thermal paste to reapply to the heat sink, what do you guys think

Re: My computer crashes when i leave it on at night
 

None of that makes sense though. If the machine is left alone overnight its going to be running cooler than the system runs when you are using it. What are your temps?

Sorry seen your temps 54 degrees is not really to high and in theory should not be causing a freeze.

Download and run prim95 if it is temp related the system will fall over very quickly

Re: My computer crashes when i leave it on at night
 

yea your right i see what your saying, ive already run a cpu stability test and it run the cpu at 100% for 1 hour and it was fine, il try this one but how long do you think is best to test it?

Re: My computer crashes when i leave it on at night
 

you have already tested it

Re: My computer crashes when i leave it on at night
 

clutching at straws here, but how about run a live Linux CD such as Ubuntu for a while and see what happens. try using it for a bit, and if all is ok leave it running over night.

just thinking that's another way of seeing if it's hardware or software related.

Re: My computer crashes when i leave it on at night
 

you would be better off perhaps trying pclinux as this loads to ram so your not just running it off a cd. I know little about nix so can not list any others that do the same

Re: My computer crashes when i leave it on at night
 

I was thinking something big like Knoppix/Ubuntu uses the cd using that for a bit, would use the cd drive more than you would normally so may point to problems there.

I haven't tried pclinux, but lite ones like Damn Small Linux (DSL) or Puppy can load entirely into memory as well.