I7 920 not shown in windows correctly :(

[kazeus]

Hi. Just wondered if anyone encountered similar situation

Have the i7 920 at Bclock 187 with multi 21 which gives me 3,93~ overclock at post level an also in cpuz.

Yet checink in windows shows only 3,74 also benchmarking coms back with results of proc as 3,74 hmm strange

Everything on p6t deluxe with newest bios and clean install of vista x64.

Any ideas?

 

[kazeus]

Could not edit my post so here goes:

http://yfrog.com/1roverclockrangej

link for a shot with all the evidence on it ;p

 

[Minus_i7]

Hi. Just wondered if anyone encountered similar situation

Have the i7 920 at Bclock 187 with multi 21 which gives me 3,93~ overclock at post level an also in cpuz.

Yet checink in windows shows only 3,74 also benchmarking coms back with results of proc as 3,74 hmm strange

Everything on p6t deluxe with newest bios and clean install of vista x64.

Any ideas?

3.93 (multiplier x21) can only be reached in a single thread with turbo boost. Your processor's real speed is 3.74.

 

[kazeus]

after bios update I can manually set multi to 21x turbo mode off. any ideas?

 

[Minus_i7]

Without turbo, the i7 920's multiplier is capped at 20, regardless of what the bios says.

 

[kazeus]

ok thanks. bit weird tho as i can set multi right up to 21x no turbo mentioned there.

 

[kazeus]

here is screen from the bios that clearly shows intel speed step dis and multi at 21. turbo? where would this be and how would it work? am i enabling the turbo by setting the multi to 21x? i am confused,..

edit:
link to the image http://yfrog.com/2ydsc00077oj

 

[Minus_i7]

here is screen from the bios that clearly shows intel speed step dis and multi at 21. turbo? where would this be and how would it work? am i enabling the turbo by setting the multi to 21x? i am confused,..

edit:
link to the image http://yfrog.com/2ydsc00077oj

Huh.... does Windows still say 3.74 after you've disabled turbo boost and set the multiplier to 21?

I've heard that some motherboards let you enable a 21x multiplier on all 4 cores, but it might just be hearsay.

 

[kazeus]

yeah, windows and futuremarks show 3,74ghz at post showing 3,93. this must be some kind a joke ;d I have seen other folks with the same question. dunno

 

[Minus_i7]

Best guess is that setting the CPU multiplier to 21 turns turbo boost back on.

Maybe Asus knows.

 

[overshocked]

Your problem is because windows looks at the default multiplier which is x20. CPUz gives you the correct speed.

All the other programs look at what windows says the cpu speed is, so they are all wrong because windows is wrong.

 

[kazeus]

thanks pal. I have actually asked the same question on asus forums but no reply ;d looks like waiting for new bios or other sort of explanation.

 

[kazeus]

Your problem is because windows looks at the default multiplier which is x20. CPUz gives you the correct speed.

All the other programs look at what windows says the cpu speed is, so they are all wrong because windows is wrong.

great ;/ actually its not that big of a deal just not knowing why made it annoying. thanks

 

[overshocked]

Its not the MOBO's problem. Its all about the OS.

Every board will do the same thing.

 

[kazeus]

yeah mobo seems fine the windows is the culprit-as usual-microsoft coming to haunt me again ;d

 

[dgingeri]

3.93 (multiplier x21) can only be reached in a single thread with turbo boost. Your processor's real speed is 3.74.

Mine shows x21 most of the time under some load even with all cores used, but not when all cores are at 100%. (It shows X12 under no load.) When at 100% on all cores, it drops back to x20. When on one core only, it jumps up to x22.

full load on all cores: base frequency
partial load on more than one core or full load on 2-3 cores: 1 step up
only one core being used: 2 steps up

That's the way the turbo boost works.

It's kind of funny. With my current overclock, everything works great: 167 bclock, 3.33 base frequency, 3.5 under partial load, 3.67 single core use. However, if I boost my bclock up to 170, it will work fine until I have something using a single core. at that point, turbo boost pumps it up to x22 and the system crashes. I could raise some voltage somewhere, but I don't feel like it for now. base voltages are working fine for me, and I'm getting EE performance out of a $200 chip.

 

[kazeus]

i didn`t think there was possibility of multi being 22x in i7920 chip. maybe new stepping enabled this but i don`t know how otherwise only the 940 upwards had multi at 22x.

maybe Overshocked knows the answer to this?

anyhow thats nice little OC but for me OC is when i have required speed all the time stable without a fail under prime for a day or so.

in this article guys reached 175mhz on 1,2V so stock voltage

http://www.xbitlabs.com/articles/cpu/display/core-i7-920-overclocking_11.html. maybe if you set your volts manually it will give you better results

 

[dgingeri]

http://www.tomshardware.com/reviews/intel-core-i5,2410-4.html

 

[kazeus]

Thanks for the link.

 

[dgingeri]

I thought it explained it better than I could. I wasn't trying to be a smartass.