Speed Step not reducing vcore when idle ?

[wildman]

I revisited my bios settings today to re-enable speedstep as my machine is more or less on 24/7 these days so I though it wise to put this back on to lower power draw when the rig goes idle.

However after turning it back on I notice in CPUID that when the cpu clocks down to 1600 the vcore is still at 1.22 - 1.25 which is the vcore which I set manually in the bios for the 4.4ghz speed

I am using an MSI P67 GD65 and a 2500K

I think maybe I have missed something obvious in the bios settings but EIST is enabled and I can't see what other bios setting I would need to enable for the vcore to clock down also.

 

[eddyr]

You're using a fixed vcore. You need to ue the auto/VID which will lower or raise the vcore depending on clockspeed.

You may have to rework your oc using offset to ensure it gets enough volts or not too many volts (a bit of vdroop can also help with this).

 

[wildman]

You're using a fixed vcore. You need to ue the auto/VID which will lower or raise the vcore depending on clockspeed.

You may have to rework your oc using offset to ensure it gets enough volts or not too many volts (a bit of vdroop can also help with this).

Maybe this is the problem then. AFAIK MSI boards don't have vcore offset They stoped this feature with the X58 line of motherboards.

On Auto the board pumps way to much vcore for a 4.4 OC. I a can run this chip stable at 4.4 on 1.22 V and stable at 4.6 on 1.31v. Without offset it makes using Auto on MSI boards a pain as you can't stop the bios from setting the vcore too high for the clock you want.

Now I remember why i turned the green power / EIST off, because it was useless

 

[eddyr]

Strange to remove the feature. You could use a lower level of LLC (or whatever the MSI naming equivalent is) which will allow more droop under load. High/max llc levels can actually overcompensate and throw more volts than the vdroop dropped.

edit: they could have it under an obscure name/option, maybe somone more familar with MSI bioses wil know.

 

[wildman]

Strange to remove the feature. You could use a lower level of LLC (or whatever the MSI naming equivalent is) which will allow more droop under load. High/max llc levels can actually overcompensate and throw more volts than the vdroop dropped.

edit: they could have it under an obscure name/option, maybe somone more familar with MSI bioses wil know.

I checked on the MSI forums and it actually doesn't exist in anyway shape or form on any of their boards post X58

http://forum-en.msi.com/index.php?topic=161966.msg1186735#msg1186735

I'll hazard a guess that their tech department never did look into implementing both into the bios as warner said they would in his post