vid

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TheRedFox · #1 Post by **TheRedFox** » Mon Mar 30, 2009 7:52 pm

does anyone have any information on converting voltage to vid (for use with linux-phc)?

aaa · #2 Post by **aaa** » Mon Mar 30, 2009 8:51 pm

I think one of the gui tools did it automatically. Also, older versions of phc understood the Pentium M voltages (the vids changed with the Core Duo). I believe there may have been a formula... if not, then the Intel datasheets have these huge tables matching vid to voltage.

TheRedFox · #3 Post by **TheRedFox** » Tue Mar 31, 2009 2:01 pm

where could I find one of these intel datasheets (for Pentium M)

gongo2k1 · #4 Post by **gongo2k1** » Tue Mar 31, 2009 9:03 pm

http://download.intel.com/design/mobile ... 526202.pdf

page 18

TheRedFox · #5 Post by **TheRedFox** » Tue Mar 31, 2009 9:08 pm

thanks!

TheRedFox · #6 Post by **TheRedFox** » Tue Mar 31, 2009 9:28 pm

actually, I'm rather confused about how to interperate the vid table. any help?

aaa · #7 Post by **aaa** » Wed Apr 01, 2009 5:54 pm

The formula is in thinkwiki, VID=(voltage-700)/16. Voltage in millivolts.

Oddly enough the table appears to be backwards?

TheRedFox · #8 Post by **TheRedFox** » Thu Apr 02, 2009 11:48 pm

I noticed that too. weird, huh?
so then 0.780v = ~5 vid?

edit: whoa, my windows voltages are way higher than my linux ones (minus the one @600mhz)
anyone know of any good stability tests to test cpu voltages for linux?

aaa · #9 Post by **aaa** » Fri Apr 03, 2009 9:52 pm

They should be the same, unless you're testing one of them wrong. I use prime95 on both.

TheRedFox · #10 Post by **TheRedFox** » Fri Apr 03, 2009 10:21 pm

i suppose that's a good point.

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