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Here's my situation. I've posted this in a few threads but never found the solution. I'm figuring the overclocking subforum would be the best bet for your guys' help. So sorry if you're sick of reading this over and over again..
2x1gb Buffalo firestix pc2-6400. Rated at 800 5-5-5-15-5 2.1v. My motherboard only goes up to 2.0v. I did an overnight memtest at 320fsb 4:5 for effective 800ddr2 5-5-5-15-5 2.0v and passed with no errors (27 passes). So ram looks good.
At stock 8x266 (e6400), I can run orthos for 20 hours stable. So that further shows cpu and ram should be good (ram only running 667ddr2 5-5-5-15-5 2.0v in this case, but memtest above proves ram)
3dmark03/06 loop can go overnight at stock 500/690 as well as overclocked 580/800 (haven't tried voltmodded 650/800 yet since that was just done a few hours ago)
However, here's the problem: orthos + 3dmark loop = lockups!! Temps never go anywhere crazy. I figure the ultra 500w was a real pos, so I managed to borrow a known good antec neo he550 (i know i know not that great a psu compared to others, but should be enough to rule out psu. again, it is known good and i'm borrowing it from someone who works at XXXXXXX). No change in result.
So what does that leave me?? I figure the delivery of power to the gfx is coming mostly from the psu so it shouldn't be the motherboard right??
It's an asus p5l-mx for those wondering (945g matx board).
With the case covers on, the airflow in there is quite decent, and a thermistor i have placed in between the ram chips and the heatspreader doesn't go much above 40'c under load (as opposed to the high 50's with the case open and running memtest). gfx used to load right around 68-70'c before i did the voltmod. now it's around 74-77'c under load, which is higher than i'd like but still within range (not going to invest in better aircooling since i'm planning on going water soon enough).
cpu coretemps showing around 60'c under load, and in the high 40's with the asus tool. again, stock intel hsf with as5 at the moment since going water soon.
northbridge/southbridge aren't too hot to touch, and although passively cooled, there's decent airflow and asusprobe shows in the mid-high 40's under load, which should be respectable. besides, this is at stock 266fsb anyway, so it shouldn't be taxed beyond what it was meant to do (although admittedly the 945g was never officially meant for c2d but that's another story. i've managed more than 400fsb on it just in testing).
Volt rails were slightly on the higher end with the ultra, but were really nice looking numbers. With the antec, everything is absolutely spot on, with the 12 being slightly higher at a healthy 12.20v.
Speedstep and c1 are disabled in the bios. So is the asus hyper3 whatever that is.
2x1gb Buffalo firestix pc2-6400. Rated at 800 5-5-5-15-5 2.1v. My motherboard only goes up to 2.0v. I did an overnight memtest at 320fsb 4:5 for effective 800ddr2 5-5-5-15-5 2.0v and passed with no errors (27 passes). So ram looks good.
At stock 8x266 (e6400), I can run orthos for 20 hours stable. So that further shows cpu and ram should be good (ram only running 667ddr2 5-5-5-15-5 2.0v in this case, but memtest above proves ram)
3dmark03/06 loop can go overnight at stock 500/690 as well as overclocked 580/800 (haven't tried voltmodded 650/800 yet since that was just done a few hours ago)
However, here's the problem: orthos + 3dmark loop = lockups!! Temps never go anywhere crazy. I figure the ultra 500w was a real pos, so I managed to borrow a known good antec neo he550 (i know i know not that great a psu compared to others, but should be enough to rule out psu. again, it is known good and i'm borrowing it from someone who works at XXXXXXX). No change in result.
So what does that leave me?? I figure the delivery of power to the gfx is coming mostly from the psu so it shouldn't be the motherboard right??
It's an asus p5l-mx for those wondering (945g matx board).
With the case covers on, the airflow in there is quite decent, and a thermistor i have placed in between the ram chips and the heatspreader doesn't go much above 40'c under load (as opposed to the high 50's with the case open and running memtest). gfx used to load right around 68-70'c before i did the voltmod. now it's around 74-77'c under load, which is higher than i'd like but still within range (not going to invest in better aircooling since i'm planning on going water soon enough).
cpu coretemps showing around 60'c under load, and in the high 40's with the asus tool. again, stock intel hsf with as5 at the moment since going water soon.
northbridge/southbridge aren't too hot to touch, and although passively cooled, there's decent airflow and asusprobe shows in the mid-high 40's under load, which should be respectable. besides, this is at stock 266fsb anyway, so it shouldn't be taxed beyond what it was meant to do (although admittedly the 945g was never officially meant for c2d but that's another story. i've managed more than 400fsb on it just in testing).
Volt rails were slightly on the higher end with the ultra, but were really nice looking numbers. With the antec, everything is absolutely spot on, with the 12 being slightly higher at a healthy 12.20v.
Speedstep and c1 are disabled in the bios. So is the asus hyper3 whatever that is.
