I checked out the AutoXpress BIOS options:

AutoXpress Boost Off - AutoXpress Boost On

-

-

Improvement with AutoXpress On:

2k1 = +2%
CB10 = -0.2%
WPrime32M = 0%
Pifast = -8.2%

I've no idea what they're doing deep under but these settings are giving better GPU perf. but lower memory perf. overall and no driver/hardware settings we can see are being changed.

Also, funnily I checked Hexus Pifast. Oc'd my GPU using AtiTool, yes GPU, and leaving everything else constant. I tried it 3 times for each run. Once the GPU was oc'd from 800/700 to 843/963 the time was consistently going from 48.7s to 46.5s.

Below score at same settings was with just GPU oc'd:



Now with no GPU oc a few minutes after:




Heck this is fully consistent too!

BTW, a few personal updates.

My Phenom is now 1.24V 2.6G stable due to lower temps.
My RAM is running 1.98V real 5-5-5-15 tRC 11 tRFC 75ns 1066 Memtest 8hrs stable without extra cooling.


Mathos: Your PSU is poor but those volt readings are wrong anyway. It's the Fintek chip, it is always reading around 8V on the +12V rail, even when they're actually at 12V. Mine are 11.98-12.00 consistent measured with a DMM and software still shows 8.4V. Actual +12V line sub 11.4V and you'd have dead/damaged components pretty fast.

What kind of RAM do you have that requires 2.3V at 800 5-5-5-15? That's very high for 800 CAS5, usually you only need 2.0V for that at most.

madfaze: are you asking with Phenom or with a K8?
For K8, no NB/HT volts needs to be touched even at +2.0GHz HT.
Neither for Phenom, maybe HT volts are required when it's past 2.4G, I've not needed it yet at up-to 2.596G.