Mac OS X on x86 Hardware 2008–2024 Technical Archive
InfiniteMac OSx86 › OSx86 Core & 10.X › Q6600 Voltage Questions
3,905 reads · 2009-10-05
Note 10.X Core

Q6600 Voltage Questions

I have an Intel Quad 6600 CPU (65nm, G0): dl.getdrop box.com/u/1924024/q6600.jpg 1. Using the default BIOS Settings (no overclocking) my stock voltage is 1.340V. Some people said this is too much for Q6600. What do you think? 2. Using the…

Primary Author
@zoliky Published 2009-10-05
Collection
OSx86 Core & 10.X
Archival Footprint
3,905 historical reads · 2 curated field notes (from 4 dispatches) · 2009-10-05
Credited Voices (3)
@zoliky (2)@dashboard@thorazine74

I have an Intel Quad 6600 CPU (65nm, G0): dl.getdrop box.com/u/1924024/q6600.jpg

1. Using the default BIOS Settings (no overclocking) my stock voltage is 1.340V. Some people said this is too much for Q6600. What do you think?

2. Using the voodoopower kext, my voltage in idle is reduced to 1.180V. Is this such a big difference? I would like to patch my DSTD for vanilla speed step.. But I don't know, is it worth? The difference between 1.340V - 1.180V is small.

I would be grateful for any suggestion! Thank you!

Author Updates & Technical Revisions

Follow-up dispatches by @zoliky

Author Update #1 @zoliky 2009-10-05

Here you will find the difference (my cpu with OpenHaltRestart and VoodooPower):
dl.getdrop box.com/u/1924024/speedstep.jpg

What do you think, is this normal? I never used speedstep before.

Synthesized Community Field Notes

2 technical responses curated from 4 original dispatches

Field Note #1 @dashboard 2009-10-05 ↳ Re: @zoliky
@zolikyThe difference between 1.340V - 1.180V is small.

The difference between 1.340V - 1.180V is not small. If you can, always use SpeedStep, helps to cool your CPU down and saves energy.

Field Note #2 @thorazine74 2009-10-05

Each CPU batch can have a different VID, you can read that from Windows using CoreTemps.
Assuming thats the stock voltage, I think its normal for the idle voltage when using SpeedStep to be lower than the VID; in other words, it doesnt mean your stock voltage has to be the same as the idle one.
That is assuming SpeedStep is working perfectly (i.e. in Windows), it could be VoodooPower malfunctioning or giving you a misread?

Sources & Contributor Provenance (3 credited usernames · Thread #4327)
UsernameDossier ContributionDispatchesActive Window
@zolikyPrimary Author22009-10-05
@dashboardContributor12009-10-05
@thorazine74Contributor12009-10-05