920 XM question

For some reason or another I am having trouble with turboboost not being activated when I restart, any ideas where I can change this in the settings? When I turn on Throttlestop, it kicks on and runs fine. I have been doing a lot of upgrades, so I probably switched something off.

Thanks.

 

make a shortcut of the Throttlestop.exe and drag it into the startup folder in the start menu. Should come on when restart now. Make sure you have UAC disabled.

 

Check that you have Turbo Boost and EIST activated in the BIOS...

 

^^That's the problem. With Turboboost disabled, the 920xm operates at a maximum of 15x (2.0Ghz). With EIST disabled, the max is 9x (1.2Ghz). Either is deadly for your performance. You will see references in some overclocking forums that both should be disabled for best o/c results. That applies only to certain desktop versions of the i7's, but not to the mobile extremes. There are also certain SSD tweaks (primarily the Stamatis tweak) that involve editing the Registry sections applicable to CPU operation and control that can result in disabling Turboboost; if you have installed that tweak, it should be removed.

 

Where is EIST in the bios? When I have HiWINFO on and TB off it is showing my turbo and EIST in Red. Thanks for all the help!

 

It's called Intel SpeedStep in the BIOS... see here:

 

Got it! Thanks, I enabled it and all is well.

 

OK, I thought it was fixed..... What is happening is the CPU is throttling, it will jump from 1500 to 2900, back and forth back and forth. However, when I unplug it and the the GPU is on maximum battery life the cpu is steady at 2900. All of this is with thottlestop on.

 

My GPU is at stock settings

 

if your on throttlestop make sure to have checked chipset modulation with the value of 100%

 

Yep, its 100%....

 

I hear that bios A08 or 9 downclocks the cpu

 

If your conclusion that the 920xm is throttling or otherwise malfunctioning, with constant fluctuations in CPU frequency, is based upon the CPU graphs on the Summary page of HWiNFO32, then just ignore them. They fluctuate constantly and are extremely unreliable as a measure of CPU performance. The way to test your CPU is to put Throttlestop in Monitoring Only (Turned Off) mode with multipliers set to standard levels (24-23-17-17), activate logging by checking the Log File box on the opening page/screen and then run the game or other application where you think throttling is occurring. The log file will be found in the TS folder/directory. Post it here and we'll take a look.

 

A08 reset the default multipliers for the 920/940xm CPU's to conform to the Intel defaults, instead of the 24x or 25x across the board settings used prior to that BIOS. The reset had very little practical performance impact, and has nothing to do with doc's issue.

 

I am using BIOS 09. Funny thing is, it only jumps up and down at idle, when I play a game or run a benchmark it locks the cpu at whatever I set it to in TB.

 

That is normal, the CPU is processing loads of minor processes on idle which are optimised for a different combination of cores, some 2 some 4 some 1. When you are playing a game, there is a dedicated process for you CPU so it uses what it deems right constantly.