Quote Originally Posted by oldpueblo View Post
I've been very afraid to play with voltages though my 9950BE appears to run fairly cool on air (27-30 idle/40-45 load). I've never been clear on what other voltages need to be raised other then the CPU/RAM voltage, so you're post is quite helpful. Can you break down what the variuos voltages are for? Here's the options I get in AOD (I'll look in the bios later because I know there's more).

CPU VID
NB VID
NB Voltage
CPU VID,,
is your CPUvoltage,, which is predetermined by default in the MOBO's Bios Section along with NBvid and SB/NBvoltage..You can usually change CPU Vid option up to a Max of 1.55volts...

Note: (CPU +vcore or extra Vcore) is usually present with CPUvid setting in your Bios..

NB VID ,,
acts exactly the same as CPUvid but of coarse for the on Chip/CPU Northbridge..This also has a max of usually 1.55volts .The Higher the Volts the higher MHZ you will reach vs stock on NB,, You will also increase the CPU's heat output raising this just like how CPUvid does..Ive raised Both the same to push my chip to the max..You should keep them close together for stability.9950 is 1.31v CPUvid and 1.31v NBvid @STOCK/Default.

Remeber you have 4Xcores +NBcore = 5cores.. All produce heat when adding Volts..These new chips do like Volts when being cooled decent. Stability is easier when i Raise Both VIDS the Same amount when Going For Max CPU/NB...When i think about it 1.56volts for x5cores is lmpresive compared to the same volts on a X2.. Ive also noticed that if NBvid is set higher than CPUvid it will set the CPUvid a setting higher than the NBvid by default..This is normal with all Phenom/Bios code..Just the way the VID's works . I thank Polygon alot who realy open my eyes to Phenom.

NBvoltage ,,
is usually the NB on the MOBO..NorthBridge for the RAM to CPUNB..This usually stays around 1.15v-1.20vStock and 1.31v-1.35volts when overclocking with lots of RAM..More Sticks and GIGS equals little more volts here to keep Ram talking to CPU. I use 1.33v when i go for Tight Timing and or High Freqency Ram speeds.. Each Mobo will use more or less.

Quote Originally Posted by SparkyJJO View Post
3.5GHz nice! Is it prime stable?
Yes with explanation,,CPU//RAM Prime Stable ... I have is the Origanal TA770 and Not 9950 OVERCLOCKING friendly at high of Freqencies...I made this work and i knew i would max My PWM's . The Most Ive primed has been 6hours @ 1.56volts 3450//2680nb//5300ht.. That seemed to be the Mobos sweetspot .. The One that breaks the camels back is when i aproach 3hours @3.5ghz but with lower NB/ht settings... PWMS work too hard and when they Start Sqeeling and sounding like bacon Frying i Stop prime I know ,, im not nice to my hardware hahaaa ..


OFF topic,,
Whats amazing is when i Play Crysis @3450 and with my 3870x2 cranking the pixels my CPU dosnt even sweat...Its nice to net 30fps + in 1280x1024 everything MAXED using One Card on a single PCi-E mobo...

XP32bit SP3 with ALIENware GUI,, my budget Vista J/K