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i7 oc question

G

groebuck

2[H]4U
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Mar 9, 2000
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what do I turn off to stop my mulipilier from jumping all over the place...?
 
i7's automatically throttle. I don't think you can.
But yes, disable C1E and speedstep. If i7's are truely controllable that'll keep your clocks "normal".
 
disable them, and make sure turbo is enabled. this will bump up the multiplier by 1x on one of the cores (when idle) in case you need that extra juice. and with the thermal/power crap diabled, the clock speed will not fluctuate.
 
thanks that did it - weird thing is now @ 19x200 my system runs much hotter than 20x190
 
probably because the thermal/power saving stuff was keeping temps down. if you want to lower your temps, disable ht in bios. you can google about how much this will effect your performance, ie nill.
 
yeah, they were doing what they were designed for. U can always play with HT on or off.
 
sweet yah i answered myown question last night "uh dumbass you just turned off the cpu throttling of course it will be hotter" :p
 
lol holy crap - so I disabled HT and my load temps at 3.8 went from close to 80 to 65 c !

looks like i may try 4.0 ghz again!!
 
woot finally - dayum these i7's are tricky :) but so much fun.


50574504pn3.gif
 
if you want to lower your temps, disable ht in bios. you can google about how much this will effect your performance, ie nill.
Click to expand...

Are you saying Hyper Threading has no performance benefit?
 
I doubt many games take advantage of the extra four virtual cores, but audio and video processing will and many other applications will. So for gaming there is no real benefit to HT but for AV, Photoshop and other extremely processor intensive applications there is quite a large benefit.
 
Any type of multitasking will benefit greatly from HT, pure gaming no, but I wouldn't say the the performance is nill.
 
well.. I did some converison tests using clone dvd mobile. I tested with andn without HT eenabled at 3.8 ghz - there was not much of a performance increase -

9 mins with

9 mins 11 seconds without.

most of what I do outside of the web, mp3, email and games is rip and encode.
 
vanilla_guerilla said:
nill
Click to expand...

there is a good article on xibitlabs - they compare a crap ton of apps with turbo only ht only and turbo and ht turned on -

the over all benefit was about a 6% gain with turbo, -1% to 0% with HT and 6% overall with both turned on.

http://ixbtlabs.com/articles3/cpu/ci7-turbo-ht-p1.html

some apps benefit from HT that are true smp apps but not a lot are. Photshop and Cinebench being two of them, but even then the gains were nothing mind blowing. A lot of times you can take performance hits with HT enabled because of the way it halfs the physical core
 
Great link buddy!
My i7 920 is stable at 4.0GHZ 1.3v with HT enabled (load temps ~69C).
I will disable HT since it does not provide performance improvement in most apps.
I ready that temps can be lowered by 10C by disabled HT.
 
Actually for those of us that do 3D (especially maya) it can cut a LOT of time off of big renders. With HT and turbo on, you can shave over a minute off of a 5 minute render (xbit showed a 27% decrease in render times). When you're working on very large, detailed image sequence renders, this can add up to HOURS saved. Thats not exactly nill. Gaming performance, different story, but HT has its place.
 
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