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System unstable

cytg111

cytg111

Lifer
Symptoms
- Sudden reboots (no BSOD)
- A small bump to the case will reboot it too (just had that happen)
- Display driver crashes
- Explorer crashes

Specs: core2quad not oc'd, intel 320 160G, gtx580, 8G ram and some spindles.

I've just moved and its possible i suppose it's taken some small hits i suppose :-(.

I've diagnosed the SSD with intel toolbox, its fine.
I've memtested the ram and its fine.
Super PI on all 4 cores, fine.
temps while ^ 35-50 degrees, plenty of distance to tjmax.


What am I missing? The fact that it reacts to a small bump suggests a something isnt seated right or gotten loose .. Ideas ?
 
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Sounds like you have a short in the case. Have you taken your system apart recently?

Make sure all screw holes in the mobo are attaching it to the case, with a standoff for each one.
 
Nope, but running an open case atm .. only switched the ram out yesterday, but was unstable before that too..

Just fired up left4dead2 and i get instant artifacts.. i might have burned my 580gtx :/

gonna take it apart now..

edit: done, dusted and put together again.. and within first 5 min of operation the displaydriver fails again. sigh.
 
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The only time I have seen instant artifacts are when a card is overclocked too high, or the card itself is about to bite the dust.
 
Still got issues, but switched to the secondary display output and have put the case on the side.. at one time I booted and it wouldnt recognize that I had nvidia GPU in the system and only display option was 1600x1200 whereas native res is 1920x1200.
Just fired up and fisrt thing the, now updated, display driver crashed again .. I've downclocked the card as much as possible but temps is like 40 celcius .. shouldnt be a problem. I'll get another gfx adapter in one of these days and test with that .. but I am fearing the PSU or the mainboard... :/.
I wasnt ready for haswell yet, but the 4770 (non k) is becoming more and more attractive.

edit : (ps, the card has never been OC'ed, with a q9450, the card shouldnt be the primary bottleneck).
 
Try running the mobo out of the case on a piece of cardboard. If there is a short with the case, it will be due to metal touching the motherboard's "back".
 
Torn Mind said:
Try running the mobo out of the case on a piece of cardboard. If there is a short with the case, it will be due to metal touching the motherboard's "back".
Click to expand...

I agree. If the system reboots when you bump the case, you either have a grounding problem, an electrical short, or a loose power cable somewhere.
 
Back on backop device .. damnit.
Ok, full system specs

PSU : Antec tpq-1000, 1000 watt
CPU : Q9450, running stock with passive megahelm
RAM : Corsair XMS2-8500 (running stock)
GFX : gtx580, HD4850 (not at the same time!).
MOB : Asus rampage formula
HD : Intel 320, 160G (other hd's disconnected).

Thats it.

I decided to mess around with it today, so switched down to an old 4850 I have lying around, it got detected fine, downloaded drivers and smack. BSOD - Memory management.
Pulled out the bank2's (4G total).
Got up again, installed again, fine. But just as I was reading your guys comments, text started to scramble a bit. Next thing. Black screen. Not even BSOD.

Conclusion so far : Problary not the gtx 580. Problary not the memory (had issues before as well with another kit). Problary not the disc (is using it now in my daughters i3 rig).
Could be : PSU, Mainboard or CPU.

The cardboard sounds like a good idea, there is one more thing i'd like to run by you guys though.

There is coming this faint, but very very high pitched whine from the PC .. cant determine if it is the PSU or from the mainboard but I am leaning towards the mainboard. Googling about it tells me it could be a bad capacitor in wich case whatever print it sits on is dead.

About right ?
 
Now up and running on the i3 rig with my old PSU .. so far no problems. Well this cheapo i3 rig has a single pcie slot and i cant get it to recognize a descrete card, so running on HD2000 ... 🙁
But, I think the high pitch noise is coming from the psu.. think, or it is the acustics of having the PSU out in the open cause it does send out a little ... not as much as before
 
Did the cardboard trick .. didnt get into 4 seconds of loading windows before BSOD .. and it is most defnetly the PSU producing the high pitch. BUT on the other hand the i3 im on now ran fine on that PSU. I would have liked to try and boot the system with a linux livecd just to take an angle from another OS... but due to circumstance on circumstance (!#%&T#) that wasnt going to happen.
Im really out of ideas here .. about ready to pull the trigger on a pre-build haswell system.. screw this ****
 
Now back with the i3 rig, but powered by my old 1000watt psu and the gtx580 mashed in... for some friggin reason this board (gigabyte h61m) will recognize the nvidia but act like the ati is not even there .. weird ****. Well, for the time being i've got a hybrid setup going until i pull on those haswell parts. (still got a little high pitch from the psu right now .. pretty annoying).
 
Matt1970 said:
That's what I am thinking.
Click to expand...

Well, it did the same out of the case, sitting on a piece of cardboard.


- Aaand reboot again .. now its either the PSU or the gtx580 .. but I did just do an hour of l4d2 without any hiccups.. has to be the PSU.
 
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