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Asus M4A89GTD Pro Questions

post #1 of 8
Thread Starter 
So I picked up the above mobo, a 1055t, and some gskill 1600 cl9d.

I've been going to town with overclocking, and I've run into a wall. I can hit 3.8 ghz with 270 base, 2700 FSB/HT, 1440 mem at 7-8-7-22-1t, 1.4375v (1.5v load with LLC), 1.30 CPU/NB, and 1.55v dram. Any time I try to take the base clock higher I get blue screens.

Out of curiousity, with LLC enabled at the 1.4375v setting in bios, I idle at 1.44v, full load at 1.5v. That seems like a huge jump, like the exact opposite of vdroop. Is that normal?

Back to the overclock. I've dropped my memory to 1066 (or whatever is around there on the multiplier), opened up the timings, set FSB and HT to 2000, and just focused on the baseclock, core clock, and voltages.

I've pushed the CPU/NB up to 1.5v and the vcore up to 1.55v, and still I get blue screens. I'm perfect happy with my 3.8ghz O/C, so it's not really about that. I'm just curious to know if I could improve my cooling and push it harder down the road. All throttling/powersaving/turbocore functions are disabled, spread spectrum disabled, bios is updated. I've tried manually setting all other voltages and leaving them at auto.

I've seen so many people talk about how easy it was to hit 4ghz on less volts than what it takes for me to hit 3.8 (the 1.4375v setting, 1.5v at load), so I'm just wondering if I have a less than stellar chip or if I'm missing something. My stable O/C can run Prime95 and Linx (max mem) at the same time and I hit 53-54c on the cores at 3.8 (did 12 prime95 solo, 3 hour linx solo, and 1 hour combo). So it's not like that O/C is on the edge then I fall over it. It's dead stable.

Thanks, I'm out of the AMD loop so I'm guessing there is something I'm overlooking. Sorry about all the words.
post #2 of 8
Try take down your HT Link, keep it below 2300 if you can, for stability. Apparently you get no benefit from anything over ~2300

Also look for something in your BIOS called LLC (Load Line Calibration) and switch it off.
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by JoshHunter View Post
Try take down your HT Link, keep it below 2300 if you can, for stability. Apparently you get no benefit from anything over ~2300
Quote:
Originally Posted by Darin View Post
Back to the overclock. I've dropped my memory to 1066 (or whatever is around there on the multiplier), opened up the timings, set FSB and HT to 2000, and just focused on the baseclock, core clock, and voltages.
Quote:
Originally Posted by JoshHunter View Post
Also look for something in your BIOS called LLC (Load Line Calibration) and switch it off.
Just tried disabling LLC to see if there is some compatibility issue. As it turns out it does exactly as intended. It provides increased voltage at load when it is needed. Turning it off just forced me to up my voltage to 1.55v so that vdroop took it down to 1.5v under load, basically just feeding more energy to the cores when not necessary, then taking them away when necessary. So that's not it. Thanks for your suggestions though. Any other ideas?
post #4 of 8
Leave LLC on.
Increase the NB 1.8V Voltage. May help with your FSB @ 270+
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by IOSEFINI View Post
Leave LLC on.
Increase the NB 1.8V Voltage. May help with your FSB @ 270+
Tried increasing the NB 1.8v to 1.9 and 2.0, dropped HT down to 2300, cpu/nb to 1.4v, mem to around 1066, nb 1.2-1.3, same issues. Posts and gets into windows sometimes, but anything that pushes the processor bluescreens.
post #6 of 8
Set FSB @ 270
Drop both CPU/NB and HT Link speed @ 1890 , AUTO for voltages
Drop RAM @ 10xx, timings 9-9-9 , 1.50V
Drop CPU speed @ 2700, AUTO for voltage.

Start raising your FSB. If still can not go higher( increase NB & NB 1.8V if needed), that may be your mobo's limit
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post #7 of 8
Thread Starter 
Thanks, will give that a try next.
post #8 of 8
Maybe your chip cant do what youre trying to make it do, did anyone think of that? Mine cant do 4.0
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