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correct default setting for XP-M 2400+ 45w?

L

LS20

Banned
hi

i HAVE ran a search here but they were all regarding overclocking the mobile and the amd website & forum have very poor documentation on the MOBILE XP

anyways, my set-up is:

XP-M 2400+ 45w chip
TT Silentboost cooler
Shuttle An35-N ultra 400 board
corsair value select 512mb ddr400 pc-3200 ram


I do NOT desire to run it overclocked, so i want the baseline setting where its designated:

133 bus (266fsb effective)
13.5x multiplier
and 1.45v cpu

is this correct?

(its sitting in this state @ 36* CPU)

the reason i question it is because , by leaving the bios in AUTO, it sets the config as so:

100mhz bus
6x multiplier
1.55v cpu



now i realize that both my ram and mobo are capable of running higher fsb... 166mhz.. maybe even 200mhz... and the multiplier setting, in conjunction with FSB, dictates the speed at which the CPU will run... so i may fiddle with it later on

my question is the Voltage... how does that affect the CPU? does increasing it or decreasing it add to stability? will it need to be increased or lowered to go along with overclocking? thakns




also... if the fsb is doing 133/266... is there a point in running the memory at ddr400? wouldnt it be bottlenecked by the fsb? leaving the mobo config in AUTO for memory results in ddr400
 
Originally posted by: Spikesoldier
10x200 😛
Click to expand...

That's not nice man.... he wants the defaults... hell I've set mine to default once or twcie to get a baseline temp from which to test off of...

Anyway yes, those numbers you quoted are correct and the VCore can be used to increase stability. If you comp starts crashing or failing prime then you may need to bump your VCore... what cooling are you using?

your RAM speed setting is your FSB... unless you use a CPU/FSB divider (which isn't recommended) then they should be the same. essentially if you have PC3200 RAM run it as PC3200 ram. drop the multiplier because I sincerely doubt you will be able to hit 2.7 GHz on air with that chip (i could be wrong though and more power to ya if you do)

and about the AUTO settings in your BIOS... I can't give you a perfect answer as to why it does it, it may have to do with PowerNow (I think that is the name of AMDs 'SpeedStep-esque' thing) but my chip defaults to the same after a CMOS clear so it is normal
 
so fsb is really most dependent on the memory ?

ie.. you are saying that, with my ddr400 ram, i should run the fsb at either 166 or 200.. and then decrease the multiplier accordingly (unless i want to overclock the cpu)?

cooling is just a thermal take silentboost w/ top 80mm exhaust fan and side intake fan blowing on top of hsf
 
the reason i question it is because , by leaving the bios in AUTO, it sets the config as so:

100mhz bus
6x multiplier
1.55v cpu

Your mobo is defaulting to these values because the cpu is a mobile and not intended for use in desktops systems. Hence, since your mobo cant "read" the cpu it defaults to these ultra low settings to ensure it will POST


now i realize that both my ram and mobo are capable of running higher fsb... 166mhz.. maybe even 200mhz... and the multiplier setting, in conjunction with FSB, dictates the speed at which the CPU will run... so i may fiddle with it later on

my question is the Voltage... how does that affect the CPU? does increasing it or decreasing it add to stability? will it need to be increased or lowered to go along with overclocking? thakns

Increases in vcore (voltage to the cpu) will help attain stability, but temps will also go up. Keep an eye on temps, if they get too high, the cpu will become unstable


also... if the fsb is doing 133/266... is there a point in running the memory at ddr400? wouldnt it be bottlenecked by the fsb? leaving the mobo config in AUTO for memory results in ddr400

No, you wanna keep the cpu and ram in synch (same FSB) for these systems. There is a performance loss for running asynch (diff FSB) on AMD XP systems.
Click to expand...
 
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