Quote Originally Posted by initialised View Post
I'm testing a system with a 955BE on this board with 2x2GB GSkill PI 6400, aiming for ~3.8GHz with 225x17 for 900MHz on the ram (PI 6400 usually does 900-1000MHz) on this board, in short I'm struggling with it. I've tried CPU voltages voltages between 1.35 and 1.55, changed the RAM. Which BIOS would you recommend for this system (not sure which one it currently has)?
803 or the Beta 902 will work.

Keeping things simple ...Dial the ram first

Does that ram run as good as it can with 955 or is that what it did with your old chip?

If it can clock 1000mhz like below,

800@HTTx250. = 1000mhz @ 6-6-6-15- (800ram divider)UNGANGED

should be easy doable @3800mhz with timing tweaked and or HT,, i suspect HT/NB/ram/timing problems are holding you back.

Evenn my 720 did not hit 4ghz right away with 1150 on the ram ,,because the HT and NB didnt get along at the Same speed. So i had to offset it by uping the HTT and Raising NB above Ht speed. 1240+ is what i max clocked the Ram before i even started with the CPU/NB.


ALWAYS See what your ram can do ,,then find the Max CPUxmulti .You might want to run whith STOCK volts and 800ram multi (timing loose). Once you get somewhat dialed in probally 3700+ with that chip... then you Start adding tinyVolts as you go higher( just a little ) 955 should do 4.0g's at close to stock volts with good Air.


Keep the HT and NB around 2000 untill you get things stable.

Also VDD @ 2.8v and ACC to Auto when Raising VCORE and NBvolts to find a somewhat max clock. I use ACC to help get things Maxed then dial it down a hair untill stable.

What i run Volt wise(24/7)
Only thing i change is ACC if needed andVcore for CPU/NB or Ram volts. every thing else stays the same.


I have run 1200+mhz with the 720 @3900/2700nb on this Mobo Easy..PatriotViper can be very fussy too . @ 4'ghz 2200nb i run 1157mhz on the ram. I run my Ram very loose then tighten up things once i get my Max clocks i want to use.

720 using X20cpu multi and 1066divider.
803BIOS


720 using 18.5cpu multi 217 htt and 1066 ram divider for 1157mhz ram.
902BIOS


VOLTAGE USED on CHIPSETS 24/7
(NO matter the CPU used)
CPUvcore and CPUNBvolts will vary Depending on what each CPU needs , Same goes for ACC.



ACC is the Same for my 720 as was the 9950 (+4). or Auto works fine for either chip. 955 shouldnt need it actually.



Last make shure you Disable Temp Monitor and VcoreVoltage. or youllg et boot warnings in all Bioses.