Asus CUSL2 voltage wont change

Bakku

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Dec 31, 2007
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i am having problem with this MB.
first, the core voltage cannot be change in the bios menu anymore, eventhough i save the changes. e.g. if i rise the voltage from 1.65 to 1.90 then save and exit, the core voltage will not change. :-( (the second time i enter the bios and check the hardware monitor, voltage does not change)

second, the readings from Asus Probe isnt the same with the readings in bios. there are small variations in the core voltage reading, e.g. if i read 1.90v from the bios, i'll have 1.946 in Asus Probe. that's 0.5v differences, which i dont think it's a good sign. which reading sould i trust?

third, if i really want to change the core coltage from 1.65 to 1.90, i need to boot into windows @ 933 (it's a PIII 700e) @ 1.65v (change to 1.75v in bios but it's 1.65v actually), then shutdown windows. after restarting the pc, the bios will change the core voltage setting to 1.75v. from there, it goes again to boot into windows @ 980 @1.90v, then shutdown again. after restarting the pc for the second time, the core voltage wil change to 1.90v. (the reading in bios hardware monitor will not change, but if i luckily boot into windows, Asus Probe shows 1.90v)

does anyone has the same problem like i have? it seems that all these problems surfaced only after i upgraded my bios to v.1002 and changed my VIO setting to 3.60v, i dont have this problem previously(using 1001a previously, came with the MB. and i 've tried 1003, 1004 beta3, all gives me the same problem). or does anyone has a solution? help!!!!!

Thanks
 
I read some where that theres a trick to get the Voltage to stay as you want it. I just can't remeber 😱( Sorry about that. As for what you should trust more.....its your bios i get the same funky readings with Asus probe as well with my Cusl2. I have no idea if a bios flash would work. I'm still on the orignal bios. ( i don't like flashing bios's). As for me I can't get my system to stayed Overclocked. When ever i shut down my comp and then re boot it always goes back to the origanl setting. You know why??
 
Hey guys, I'm running a CUSL2 (bios 1002) in
JUMPER mode. Seems much more stable than JUMPER
-FREE mode; don't know why. Sometimes my system hangs
if i change the voltage to 3.6 though. Asus says
the new BIOS is supposed to fix the incompatabilites
in their diagnostics system, so what the heck is going on
ASUS?
 
i've figure out how to fix the "funky" readings from the Asus Probe. for me, the temperature readings always seem wrong in Asus Probe. it's always 10c~15c lower than the reading in bios.

just goto http://www.cusl2.com/
and grab the latest Asus Probe, the latest version is 2.12 beta5, if i am not mistaken. after i installed the latest Asus Probe, all the readings seem to be fixed and that should be the "real" reading.
 
hmmm........running jumper mode, but how do you ajust the VCORE voltage from the jumper? i cannot find this jumper in the menu and is there any VCORE jumper around?

i need to rise my VCORE voltage to get my cpu running stable at 933 (1.75v). so if i cannot ajust the VCORE voltage, it's pointless for me to run the MB in jumper mode.
 
I'm also using Asus CUSL2 with a 700@933 and it's 100% stable with 1.7v. I'm using jumperfree-mode only. Why are you changing the Vio btw?
 
i thought by changing the vio can improve overclockabilities of my agp card and ram. anyway, i was just trying, to see if there is any effects.

btw, do you encounter any voltage problem? like the voltage wont change?
 
bakku what version flash were you using when you upgraded your Bios I am using the cusl2 M/B and i have np with the voltage I also am using the 1002 bios with the Asus probe 2.12 beta 5 with no problems there as well.I think the aflash version I used was 1.27 if i remember correctly.
 
hmm......i used aflash 1.29.
all the problem starts aftes i flash my bios to 1002.

actually, i read somewhere about this voltage problem and looks like it's associated with the hardware design - something called cold boot. anyway, correct me if i am wrong, and i want to have more suggestions, pls.
 
Sorry to say this board works this way. It really is the doing of a mad person this Bios. I had an CUSL2 and fought with it for a week. Then changed to a CUV4X = same problem. Then finally changed to a P3V4X just to find that ASUS changed the Fsb choices from 32 to just 16 and none that fit my CeleronII 566 (90 or 95 Mhz)... I will stick to ABIT in the future.

There is a trick that can fix this problem on the CUSL2
it is called the wire trick and incorporates connetcting pins with eachother on the underside of the processor.
This changes the voltage the processor reports that it needs to the motherboard so it starts at higher voltage
A bit hairy for the average user but something for the enthusiast for sure.
 
how to do this wire trick?
can you give me a link or something?

so the voltage problem is actually related with "cold boot", am i right?