New monitor made overclock fail?

[California Roll]

My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

 

[WaitingForNehalem]

It's definitely not your monitor because it draws AC power from the wall. It's most likely coincidence.

 

[jandlecack]

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall.

Thanks for pointing that out.

Originally posted by: California Roll
My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

The higher resolution of the monitor, can, if nothing else was changed and we are not taking natural degradation or "coincidences" into account, be at fault here. Swap the monitors back and see if you can run it at lower voltage again. Then use your new monitor and run it at lower resolution just to identify the/a problem.

 

[faxon]

1.23v @ 3GHz on 65nm is still nothing to worry about regardless. it's not like you're running it at 3.8GHz at 1.55vcore and it's starting to fail, you could probably take that Q6600 a few notches higher lol. with that said, do what jandlecack said. would be interesting to see if that really was the problem

 

[California Roll]

Thanks guys, I think I will try it again with the old monitor.

I thought about oc'ing it higher but I'm trying to keep my pc as quiet as possible. The AC Freezer 7 isn't a high end cooler by any means, but it is practically silent 🙂. I'm also only running 2 tri-speed case fans on their lowest settings. I got it up to 3.2 stable but temps were kinda high and the cpu fan was running loud so I throttled it back down. I think I'd need a better cooler to get higher than 3.2.

Running it at 1.23v isn't a problem in itself, it's still quite a bit lower than the stock voltage. I was just surprised to see my system crashing after 4 months of stability.

 

[WaitingForNehalem]

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall.

Thanks for pointing that out.

Originally posted by: California Roll
My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

The higher resolution of the monitor, can, if nothing else was changed and we are not taking natural degradation or "coincidences" into account, be at fault here. Swap the monitors back and see if you can run it at lower voltage again. Then use your new monitor and run it at lower resolution just to identify the/a problem.

Was that sarcastic?

 

[jandlecack]

Originally posted by: WaitingForNehalem

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall.

Thanks for pointing that out.

Originally posted by: California Roll
My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

The higher resolution of the monitor, can, if nothing else was changed and we are not taking natural degradation or "coincidences" into account, be at fault here. Swap the monitors back and see if you can run it at lower voltage again. Then use your new monitor and run it at lower resolution just to identify the/a problem.

Was that sarcastic?

YES

 

[soccerballtux]

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall.

Thanks for pointing that out.

Originally posted by: California Roll
My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

The higher resolution of the monitor, can, if nothing else was changed and we are not taking natural degradation or "coincidences" into account, be at fault here. Swap the monitors back and see if you can run it at lower voltage again. Then use your new monitor and run it at lower resolution just to identify the/a problem.

Was that sarcastic?

YES

It's ok it was funny and in good taste.

 

[jandlecack]

I hope so.

 

[Idontcare]

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall. It's most likely coincidence.

Depending on how much Vdroop the AC circuit (the household circuit that is) has in place it is not entirely unrealistic to posit that the increase in current draw thru that circuit (brought on by the possibly elevated power-consumption of the new larger monitor versus the older but smaller one) caused just enough of a voltage sag in the entire circuit as to affect the PSU efficiency just ever so much as to push an otherwise stable (by right on edge) CPU into an unstable Vcc situation.

I got to learn about about household line sag when I bought a new-build home in which the cabinet installers elected to shoot just enough (seemingly random) nails thru the back of the cabinet and thru the drywall as to create a damaged electric line in the wall behind the cabinet.

If you measured the line voltage with no load it came out true at 110V but as soon as you loaded the circuit the damaged wire would heat, becoming all the more resistive and causing line voltage to sag like a mother (down into the 90's) which then caused most things to operate really poorly when attempting to pull current off of that circuit.

So my recommended test for the OP is to isolate which circuit the electrical outlets in question are on and move their rig to an entirely different circuit and see if the problem still manifests.

 

[OCGuy]

I have never had any overclacks affected by my display.

 

[mindless1]

A system that is borderline stable at a given voltage may need slightly more voltage as the motherboard ages, as contacts become slightly more resistive and capacitors drift in value a little bit.

If the ambient temperatures are higher you will also find you need a little more voltage for the same clockspeed if the fan control is not precise enough to change in speed to offset that, meaning overall the CPU peak temp rose a little. Such things are one of the reasons CPUs are usually spec'd to use a bit higher voltage than they really need at stock speed, as well as getting better yields out of the worst silicon on the wafer.

I'm not suggesting it is impossible a different monitor resolution could cause less CPU stability, but I can think of no scenario where it would be reasonably plausible. It would seem far more likely that something like a minor movement of the video card in the slot when the cable was changed would make it have intermittent contact with the motherboard slot.

Given the same PSU, same system, and the small power draw of an LCD monitor as a nearly constant value load, plus that you have at least two stages of regulation from PSU and motherboard VRM subcircuit, it is extremely unlikely, possibly even impossible to deliberately cause, switching one monitor for another to result in enough AC sag to effect o'c.

If your outdoor temperatures are higher causing an air-conditioner on the same or relatively local circuit to cycle on and off more now, the sag and spikes from that are much larger and much more likely to introduce some noise in the PSU output.

 

[WaitingForNehalem]

Originally posted by: soccerballtux

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem

Originally posted by: jandlecack

Originally posted by: WaitingForNehalem
It's definitely not your monitor because it draws AC power from the wall.

Thanks for pointing that out.

Originally posted by: California Roll
My system specs are in my sig.

Just replaced a 19" monitor (1440x900) with a 24" (1920x1080). My Q6600 @ 3.0 has been smooth for many months now. The day I swapped the monitor I got BSOD 3x in a row during a 2 hour video encode in Vegas 8.

My video card is slightly overclocked. I thought maybe the higher res was a problem. Put video card back to stock levels but still getting blue screens. I then upped my cpu voltage from 1.21 to 1.23 and it's working fine again.

Does this seem normal?

The higher resolution of the monitor, can, if nothing else was changed and we are not taking natural degradation or "coincidences" into account, be at fault here. Swap the monitors back and see if you can run it at lower voltage again. Then use your new monitor and run it at lower resolution just to identify the/a problem.

Was that sarcastic?

YES

It's ok it was funny and in good taste.

It was.