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is an I7 930 an overclocked I7 920? Thats what people say on other forums I've read. - Page 4

post #31 of 57
Quote:
Originally Posted by MistaBernie View Post
Uhhh...

That's great and all. But my Turbo is off and I'm at 21x multiplier. You're fighting a losing battle here. Quote all the forums, etc, that you want -- I know what I saw, 21x multi w/ Turbo off -- thus, not wrong, unless I happen to have a magical 920 that can do the 21x multi that you claim it cant.
Mine too. I have 2 magic 920's
    
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post #32 of 57
Quote:
Originally Posted by MistaBernie View Post
Uhhh...

That's great and all. But my Turbo is off and I'm at 21x multiplier. You're fighting a losing battle here. Quote all the forums, etc, that you want -- I know what I saw, 21x multi w/ Turbo off -- thus, not wrong, unless I happen to have a magical 920 that can do the 21x multi that you claim it cant.
Quote:
Originally Posted by Suprcynic View Post
Mine too. I have 2 magic 920's
Wanna start a 'We own magical 920s that can do 21x multi w/ Turbo Mode off' club? You can be President, I dont like responsibility.
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post #33 of 57
Quote:
Originally Posted by 9KRacing View Post
You guys keep talking about TURBO BOOST and NOT actual multipliers.
The multiplier is simply the ratio between the BCLK and the CPU core frequency. If my BCLK is 200 MHz and my CPU cores are running at 4200 MHz, the multiplier is 21x, turbo or not.


Quote:
Originally Posted by 9KRacing View Post
The 930 has a 21x multiplier and then you can turn on TURBO BOOST for a 22x multi.... on one thread. (Prove me wrong if it really is all 4 cores) It's pointless, and no one that is overclocking should do it.
Intel's white paper states +1 frequency step (multiplier!) when TWO OR MORE CORES are active or +2 frequency steps when one core is active. Again, most motherboards have the features and give you the option to fool your CPU into thinking that the conditions for Turbo Boost are being met 100% of the time so you get the permanent +1 multiplier on your CPU across at least TWO OR MORE CORES (I'm just about 100% certain you can get it on all four cores under the right conditions, which the motherboard will emulate for you).


Quote:
Originally Posted by 9KRacing View Post
Go into your BIOS. Turn off turbo boost. Now, what's your multiplier?
I don't think anyone's arguing this. What does this prove?
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post #34 of 57
Quote:
Originally Posted by dkim1359 View Post
Intel's white paper states +1 frequency step (multiplier!) when TWO OR MORE CORES are active or +2 frequency steps when one core is active. Again, most motherboards have the features and give you the option to fool your CPU into thinking that the conditions for Turbo Boost are being met 100% of the time so you get the permanent +1 multiplier on your CPU across at least TWO OR MORE CORES (I'm just about 100% certain you can get it on all four cores under the right conditions, which the motherboard will emulate for you).
Yes this is the truth of the matter. The 920 will do x21 on all cores no problem, only the x22 multiplier is restricted to single core use.
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post #35 of 57
Hrmmmmm, what's 21x133? Oh. It's 2800.

And what's 20x133? 2660?? Is THAT why they list the 920 at 2.66 ghz and the 930 at 2.8? Naw, it can't be.

There is something to do with windows performance mode and upping your chip to 21x even when TB is set to off, however, it is NOT actually running that fast. I'm honestly tired of this though.

Run whatever you want and believe whatever you want.

When your benches fall short of everyone else and you wonder why, refer to this thread.
post #36 of 57
Turbo boost will allow a 22 multi for all 4 cores on the 930 or Xeon w3530 and a 21 multi for all 4 cores on 920 or Xeon W3520. You can get this by setting the multiplier to "auto" or manually selecting 22 or 21 respectively.

You can easily verify this by putting your 920 or 930 multiplier on "auto" and running LinX (http://www.xtremesystems.org/forums/...d.php?t=201670) and TMonitor (http://www.cpuid.com/softwares/tmonitor.html). You'll see all 4 cores running at the +1 turbo multiplier (21 for the 920 and 22 for the 930).

If you are still not convinced, see page 18 of Intel's specification update here:
http://download.intel.com/design/pro...pdt/320836.pdf

It shows that for all of the socket 1366 core i7 quad cores, 1 core can jump 2 multi's and 2,3, or 4 cores can jump 1 multi.

Quote:
Originally Posted by 9KRacing View Post
You guys keep talking about TURBO BOOST and NOT actual multipliers.

Jesus it's like I'm talking to a wall.

For the last time.

The 930 has a 21x multiplier and then you can turn on TURBO BOOST for a 22x multi.... on one thread. (Prove me wrong if it really is all 4 cores) It's pointless, and no one that is overclocking should do it.

If you buy a 920 you will want to use the 19x multi.... unless you're ok with THINKING you are at 4ghz but really being at 3.8 on 3 cores.

Go into your BIOS. Turn off turbo boost. Now, what's your multiplier?

Edited by ChronoTrigger - 6/9/10 at 10:33am
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post #37 of 57
I believe I read that the h50 is on sale for 60 bucks at best buy. Will keep you plenty cool at 3.6. Then another 20-30 on good fans for push pull if you want to optimize it.
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post #38 of 57
Quote:
Originally Posted by 9KRacing View Post
I'm talking about i7 920s and 930s, not i5s and the 1156 i7s where they CHANGED turbo boost. Either way, you guys are still all terribly wrong and I can't wait for someone with a brain to back me up.
Here are just a couple examples of people seeing the +2 multiplier on a single core due to Turbo Boost on their 920s (15 second google search):

http://forums.tweaktown.com/f69/i7-u...tiplier-34454/

http://hardforum.com/showthread.php?t=1397544

Also, Intel's Turbo Boost white paper covers Nehalem (which includes Bloomfield 920s and 930s) and it was dated in November 2008, which was way before any 1156 Lynnfield CPUs were released in Q3 2009.

So, Intel released some magical 920's that can hit 22x multiplier with Turbo on a single core? I think I've demonstrated fairly clearly that the specs in the Turbo Boost white paper apply to the 920. I don't understand why you're still fighting this in the face of all this mounting evidence.
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post #39 of 57
Quote:
Originally Posted by Billy O View Post
I believe I read that the h50 is on sale for 60 bucks at best buy. Will keep you plenty cool at 3.6. Then another 20-30 on good fans for push pull if you want to optimize it.
LoL, ***?!@
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post #40 of 57
Quote:
Originally Posted by ChronoTrigger View Post
Turbo boost will allow a 22 multi for all 4 cores on the 930 or Xeon w3530 and a 21 multi for all 4 cores on 920 or Xeon W3520. You can get this by setting the multiplier to "auto" or manually selecting 22 or 21 respectively.

You can easily verify this by putting your 920 or 930 multiplier on "auto" and running LinX (http://www.xtremesystems.org/forums/...d.php?t=201670) and TMonitor (http://www.cpuid.com/softwares/tmonitor.html). You'll see all 4 cores running at the +1 turbo multiplier (21 for the 920 and 22 for the 930).

If you are still not convinced, see page 18 of Intel's specification update here:
http://download.intel.com/design/pro...pdt/320836.pdf

It shows that for all of the socket 1366 quad core 920's, 1 core can jump 2 multi's and 2,3, or 4 cores can jump 1 multi.

Good catch. Even Intel's product specifications for i7 900's clearly states that Turbo can enable multiplier boosts of 1/1/1/2.
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