Undervolting Penryn?

[flipfire]

haha i actually had the old version of CPU-z aswell and it was showing the right voltages..except for the superflm mhz though

You should be able to slighly lower your 7x-10 multipliers by abit so the voltages are linear. This is if you wanna make the most out of undervolting.

See the higher clock speed...the more voltage it requires. If theres not enough voltage being fed it will BSOD

So it looks like Penryns chips can be undervolted after all and quite damn good at it

[d94]

haha i actually had the old version of CPU-z aswell and it was showing the right voltages..except for the superflm mhz though

You should be able to slighly lower your 7x-10 multipliers by abit so the voltages are linear. This is if you wanna make the most out of undervolting.

See the higher clock speed...the more voltage it requires. If theres not enough voltage being fed it will BSOD

So it looks like Penryns chips can be undervolted after all and quite damn good at it

well my 12x is 1.0125, everything else is .95 and its working wonderfully

[flipfire]

yeah that works too.. like i said, if you wanna make the most out of undervolting you can lower the voltages slightly for the other multipliers. It wont lower your max temps (12x is responsible for this) but you will have a cooler temps when your cpu is using (7x-11x) multipliers

[deputc26]

Wow I was totally frustrated cause CPU-z was giving me bad info! thanks for posting the link to the other version. I'm conservatively undervolted to 1.075 @ 12x on my T8300 and max out at 47C on a hard surface. Will look for drastic undervolting on my friends T5270
Thanks so much for help, Awesome thread!

[flipfire]

I should make a simple undervolting guide with all the info for C2D Merom & Penryns. The other guides doesnt seem to cover everything up to date. Im not that great on explaining/defining things though and im too lazy

Its a mystery how people can get unbelievable low voltages. Me and illmatic8 have the same processor yet he is able to undervolt like .100v more.

I suggest disabling IDA multiplier for the new RMclock, seems to be buggy and cause BSOD even if you dont change the default stable voltage

[EIN502]

Sorry I have been away so I had to read to get up to speed. I am just wondering how anyone is able to get a VID below 0.9500. I don't even have an option to go below 0.9500. My version of RMClock is 2.35. Any ideas?

[admlam]

Sorry I have been away so I had to read to get up to speed. I am just wondering how anyone is able to get a VID below 0.9500. I don't even have an option to go below 0.9500. My version of RMClock is 2.35. Any ideas?

Since the Core Duo Yonah processors, Intel locked the lowest VID. There's nothing you can do about it.

[EIN502]

If it is supposed to be locked, how is rtrdogs doing it? He has the same processor as me. I saw his screen so I know I am not crazy.

[flipfire]

yeah that is weird, i dont think your default voltages were detected properly. It is still kinda buggy for Penryns

Try v2.30 which is a simpler version with no IDA or SuperFLM

[rtrdogs]

Yeah EIN502. I don't get why ours would be different. I'm also using v. 2.35.0.

It's running right now on the 6.0x multiplier at 0.9250. My IDA is off but SuperLFM isn't.

Here's another screen, if it helps.