The "Undervolting" Guide

[ATG]

My mistake I didn't know that there are actually a signed drivers already.

[jooooeee]

When I am ready to begin lowering voltages for my highest multiplier should the CPU info tab show the CPU at a lower clock than it originally was i.e. from 2.5 down to 1.2

[rtrdogs]

Heya flipfire,

Got another question for you. My undervolt has been running fine and tested great in Orthos. No problems.

Even though I could get all the way down to 0.9250 with no errors in testing through Orthos, I ended up setting my voltages like this to play it safe. (Screen)

I just start RMClock manually after the computer boots. Today something caught my eye and I usually don't pay attention to it so it may have been there all the while...

The "Current" shows the 0.9250 on my 6.0X FID just fine but every now and then it will jump to the default 1.1375 at 6.0X even though no FID is using that default. The other FIDs will show various numbers as well. In testing with Orthos, I unticked all of the FIDs except 6.0X to test that and RMClock showed 0.9250 the entire time. It never wavered like it is just watching it through normal tasks in the CPU Info tab.

You may remember that RMClock V2.35 didn't recognize my T8100 (says Unknown Core) but my T9300 was recognized (different laptop). Do you think I'm getting the undervolt or is it just playing with my head and not really doing anything?

[eleron911]

Could you post screenshots of the "settings", "profile" and "performance on demand" ?
That might help see what settings you have and help.

[notyou]

That's the exact same thing that was happening to me with my T5450. For some reason it always was set to use .95V but randomly jumped around to pretty much anything else above that. But looking at my T8300 I'm always right on .95V (I got screwed, wish it was .9 or .85).

[flipfire]

Im not too sure but ive experienced it aswell.. I can only guess some tasks/programs require a higher clockspeed than 600mhz. Which forces the CPU to jump a higher speed and bypass the downclock.

If your temps have changed, then the undervolt is in effect.

[agilpwc]

I successfully undervolted my Lenovo T61p with a t9300 to a little under 1.0 volt.
My question is since RightMark doesn't currently support 12.5x step is there a way to overclock the cpu to 13x and run at 2.6 gigahertz like a t9500?
The idea being since I have the extra leeway with the voltage, turn the voltage backup to the oridinal settings to compensate for the extra step up.
And if this is possible, what software or steps do I use to do it?

[stewie]

Maybe this is a stupid question...

I've a dual-boot Vista/XP machine. If I do all the tests in XP for example, once I found all the right settings, do I apply the exact same settings in Vista also? From my understanding, this is hardware related, shouldn't affect by the OS, right? But I'm not sure if XP and Vista drivers would actually make a difference in voltage usage under load.

[ATG]

Put the same voltages. I have dual-boot xp/vista and it worked like a charm with same voltages.

[flipfire]

I successfully undervolted my Lenovo T61p with a t9300 to a little under 1.0 volt.
My question is since RightMark doesn't currently support 12.5x step is there a way to overclock the cpu to 13x and run at 2.6 gigahertz like a t9500?
The idea being since I have the extra leeway with the voltage, turn the voltage backup to the oridinal settings to compensate for the extra step up.
And if this is possible, what software or steps do I use to do it?

T9500 has a 13x multiplier 2.6ghz.
T9300 has a 12.5x multiplier 2.5ghz

Due to RMclock only capable of reading whole multiplier number, it cant read half-multipliers. Which means your T9300 will only use 12x (2.4ghz). You will need to use the IDA to use the 12.5x multiplier.