Orthos stable but not IE stable?

[Huffbanger]

I have recently overclocked my system to a FSB of 388 with a Vcore of 1.275. I ran Orthos's for 14 hours with no problems. My temps remained in the mid 40's using TAT. All seems well. When I'm browsing the internet with a couple of windows open, I occasionally get the blue screen of death with a memory dump error. I never had my system crash like this until I moderately overclocked. I can run a very intense program like Ortho's for 14 hours but cannot run a couple of windows? Any ideas why? Thanks for any input.


C2D 6400
Thermaltake Blue Orb II
DS-3 rev. 2.0
2x1Gb G-skill 6400 4-4-4-12
XFX 7600GS
Ultra X-finity 500w P.S
2 80Gb Western in RAID 0

 

[Thor86]

Run Orthos Blend - CPU/Memory stress test for 24+ hours.

 

[Diogenes2]

Does vcore go up when you run orthos ? Try bumping Vcore to 1.35 and see if the crashes stop..

 

[Avalon]

What's your memory speed currently running at?

 

[Huffbanger]

I am running Orthos blend. Stable for 14 hours. The problem will occur within ten minutes of just browsing. My memory is G-skill 6400 running at 388. I set my timings to auto. As far as my Vcore, I believe it is steady. According to CPU-Z, the actual voltage is about .05 volts less then what the BIOS shows. When I do bump it up to 1.35 my temps go up considerably. Is TAT the recommended program to monitor temps? I noticed the program that came with my DS-3 shows about a -20 degree difference then that of TAT!

 

[Thor86]

Use Motherboard Monitor and CoreTemp to gauge your cpu temps.

 

[n7]

Are you running Vista by any chance?

Is it stable for games?

 

[Conky]

Why are you undervolting? The default voltage on a DS3 for the C2D is 1.30v.

 

[Huffbanger]

When I first tried overclocking, I tried to increase ONLY the FSB to 380. This gave me an Ortho's error within 2 minutes. From there I tried to increase every votage there was and got no results. I've tried various RAM timings with no such luck. As a last ditch effort after of month of trying, I tried LOWERING the default voltage. As soon as I did this, I was able to get Ortho's stable for 14 hours with a FSB of 380. What really boggles me now is, when I increase the voltage to 1.35, Ortho's for the first 10 minutes seems stable but my temps are in the mid 60's (I have a Thermaltake Blue Orb II with Artic Siler 5), so I stopped the test. This with a FSB of only 380! Why this didn't work during my initial attempt, I have no idea? I know this makes no sense at all. I can only state what I actually found. Maybe I need to try some lapping and bump the Vcore to 1.35 again?

 

[nealh]

I ran 24hrs of blend with my C2D@3420 but found that it would reboot on cpu tests on 3DMark05....so Prime95 is not theend all

turns out my ram settings at given clock speed were too stressful on my RD600

you are not stable and you need to add a bit of vcore or adjust ram settings

 

[firewolfsm]

Raise your timings, you won't notice the difference.

 

[Conky]

Originally posted by: Huffbanger
When I first tried overclocking, I tried to increase ONLY the FSB to 380. This gave me an Ortho's error within 2 minutes. From there I tried to increase every votage there was and got no results. I've tried various RAM timings with no such luck. As a last ditch effort after of month of trying, I tried LOWERING the default voltage. As soon as I did this, I was able to get Ortho's stable for 14 hours with a FSB of 380. What really boggles me now is, when I increase the voltage to 1.35, Ortho's for the first 10 minutes seems stable but my temps are in the mid 60's (I have a Thermaltake Blue Orb II with Artic Siler 5), so I stopped the test. This with a FSB of only 380! Why this didn't work during my initial attempt, I have no idea? I know this makes no sense at all. I can only state what I actually found. Maybe I need to try some lapping and bump the Vcore to 1.35 again?

I don't know that you need to go all the way up to 1.35v. My DS3/E6400 combo runs rock solid at the very first setting above the default of 1.3v.. I think it's 1.3125 although you can check when you play with the voltages. I don't change any of the other voltages besides my RAM(which needs 1.9v and the default RAM voltage is 1.8v). Default voltage on the E6400 is up to 1.3525 so use whatever it takes to make it stable... overclocks are worthless if they aren't stable... at least that's the way I see it.