3200+ Barton power hungry?

[Saga]

Running a 3200+ Barton stock at 2200 I cannot get a stable prime run unless the voltage is manually tweaked to 1.75v. I noticed that the ASUS Probe Utility was displaying ranges from 1.68-1.71 for the VCORE and I've been swapping sticks of RAM like crazy thinking that the reason Prime was crashing was using 2-4 sticks of Corsair ValueSelec run at stock timings (2.5-3-3-8).

On a whim I bumped the core voltage to 1.75 and haven't had a hiccup since. Is this slightly abnormal or just a reward I get for using a A7V880? Believe I heard something somewhere about the last socket A Asus boards having a very power-hungry memory controller.

 

[bjc112]

What is your Vdimm set at?

I get, or have had stability issues with multiple sticks of ram with a low Vdimm..

Bump it to 2.8v. Its safe for ANY ram.

 

[Saga]

Originally posted by: bjc112
What is your Vdimm set at?

I get, or have had stability issues with multiple sticks of ram with a low Vdimm..

Bump it to 2.8v. Its safe for ANY ram.

2.75 right now, jumped it to 2.75 because the stock 2.6 didn't seem to like running 2.5-3-3-8 and would instead default to 3-5-5-9. Even with the RAM volted at 2.75 prime still fails within 60 seconds of the vcore is anything less than 1.75. Before I was able to full load at 41 degrees cel and now under full load I'm running 48 cel and thats just from bumping vcore from 1.70 to 1.75.

 

[coomar]

the NF7 undervolts by about 0.025 volts, i have to run 1.775 on a 2500 to get it up to 2.2gigz so we're in the same ballpark, memtest will show errors if the cpu is undervolted

 

[Saga]

Hm I wonder if this would fix the issues related to me not being able to push the fsb beyond 205 without having the graphics card do a vpu recover. =O

Prime running 3 hours stable now, but I have a bad habit of pushing my luck. Any particular reason I'd still get vpu recover when overclocking if the AGP bus is locked?