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post #1 of 10
Thread Starter 
ok. i've tried overclocking my comptuer more today, and the thing still refuses to be stable in prime95. my mem voltage is a bit up, and my nf4 voltage is a bit up as well. i tested my board with the cpu multiplier at 8x and the board at 300mhz HTT, and all was fine. but when i set my cpu multiplier back to 9x, it maybe runs prime95 for one minute, then has a rounding error. i am running my cpu at the highest possible voltage on this board (1.68vcore in the bios, cpu-z reports it as 1.66, and it jumps around a lot).

anyone have any ideas? maybe i just have a cpu that's not super-good at overclocking.
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post #2 of 10
Have you set your HT Multiplier to 3X? A 300MHz HTT is pretty high and not the place to start if that is what you are doing.

You have a very high vcore. Have you read any of the stickies regarding overclocking?

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post #3 of 10
Thread Starter 
my HT multiplier is at 3x, memory divider at "166."

oh, and i didn't start at a 300mhz HTT; that'd be stupid. i have been running this system stably (not prime95-stably) at 2.502ghz for awhile now. i just wanted to see if 1) i could get it more stable, and 2) if i could overclock it more stably.

to do this, i set down the cpu multiplier and incrementally went up on the HTT until i hit 300mhz... then ran prime95 at that setting (the cpu was at 2.4ghz) and it ran just fine. so i can conclude that memory and the motherboard aren't the problem- it's most likely the cpu.
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post #4 of 10
OK, that's better. Your voltage is murder though.

Your first post says you are at 300HTT with ~1.7V on the core and erroring. Scary stuff. I hope you know what you are doing. I would immediately stop if I were you and start at the bottom.

Memory divider at 166 and an HTT at 300? Set your divider lower unless you have good ram. What is your ram spec? I wonder at your voltage settings though. Is your CPU a Venice core?

Personally if I were you I would start at the bottom of the overclock. I don't know what you have done, what you have tested etc.

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post #5 of 10
It sounds like your maxing out your core speed on that chip. Your ram is doing fine, but your cpu is not pulling its weight. The only thing i can recomend is going into your bios and making sure that you have all your settings right. ie: turn off thermal throttle, spread spectrum ect.

What is the max you can get on just your cpu, not memory? (find by using a very low divider)

*edit, I just red your temps down below, and It may possible that it is the problem. 47 is not high, but if you could lower the temps, it may be a little bit more stable.
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post #6 of 10
Thread Starter 
Quote:
Originally Posted by Ropey
Memory divider at 166 and an HTT at 300? Set your divider lower unless you have good ram. What is your ram spec? I wonder at your voltage settings though.
it's crucial PC3200 stuff. it can run (tested) up to around 500mhz ddr before it even starts to cause some instabilities, so i'm not really too worried about it running at 474. plus, as an added bonus, the 133mhz divider on this motherboard never works (MSI K8N Neo4-F).

Quote:
Originally Posted by Ropey
Your first post says you are at 300HTT with ~1.7V on the core and erroring. Scary stuff. I hope you know what you are doing. I would immediately stop if I were you and start at the bottom.
yeah.. the temp was around 47C on load (super pi), so i decided to lower the vcore to 1.6 just now. now i get around 45C on load... but prime95 is just about the same in terms of quitting.
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post #7 of 10
Thread Starter 
Quote:
Originally Posted by Inquisitor
It sounds like your maxing out your core speed on that chip. Your ram is doing fine, but your cpu is not pulling its weight. The only thing i can recomend is going into your bios and making sure that you have all your settings right. ie: turn off thermal throttle, spread spectrum ect.

What is the max you can get on just your cpu, not memory? (find by using a very low divider)
i've done this, and it's about 2.45ghz "stable" in prime (using 100mhz mem div) - hell, it's stable in prime at 2.45ghz with the ram at the 166 divider.
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post #8 of 10
Thread Starter 
eh, screw it. i've set my HTT to 288 and my cpu multiplier to 8.5x for an overclock of 2.45ghz. memory is fast and stable, as is the cpu... thanks anyway.
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post #9 of 10
Quote:
Originally Posted by RushJet1
eh, screw it. i've set my HTT to 288 and my cpu multiplier to 8.5x for an overclock of 2.45ghz. memory is fast and stable, as is the cpu... thanks anyway.
Is this a Winchester?

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post #10 of 10
Thread Starter 
venice
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