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Intel K Club & Discussion - Page 18

post #171 of 560
Quote:
Originally Posted by DoctorNick View Post
Do you think the Apogee XT is a good block?
It's on par with the EK Supreme HF, Heatkiller 3.0 LT/CU, and Koolance CPU-360.
post #172 of 560
Thread Starter 
Quote:
Originally Posted by R00ST3R View Post
I'm running mine at 4.026Ghz (183x22) HT on. DRAM at 1100Mhz actual (cas 7).
Voltages:
vCore = 1.3625 (LLC Off) - 1.329v under load.
DRAM = 1.65v
VTT = 1.35v set (1.34v actual)
PLL = 1.8v
PCH = 1.05v

Temps for cores average about 70C. CPU Tcase is 68C. Load temps of course.
On the CPU frequency side, not too impressive. One thing I've had luck with was pushing my DRAM frequency above the 2200Mhz mark. Was able to get them to 2304Mhz. A 52Mhz actual OC isn't too special, but I smiled anyway .
Still working this chip. Hopefully will get something more substantial then 4Ghz.
You should post a screen shot of 20 passes of IBT/linx on max so I can add it to the list.

I haven't tried upping my vtt that much for 24/7 usage, in my bios it goes into the red after 1.29.
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post #173 of 560
Quote:
Originally Posted by cory1234 View Post
You should post a screen shot of 20 passes of IBT/linx on max so I can add it to the list.

I haven't tried upping my vtt that much for 24/7 usage, in my bios it goes into the red after 1.29.
Ok, np.
As for the 1.35v VTT setting. It's actually the setting the XMP profile for the DRAM loads in. I'm assuming the IMC requires a little more juice to run at 2200Mhz.
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post #174 of 560
Well I ended up needing a bit more vCore. Now it's at 1.38125 BIOS, 1.388v idle, and 1.341v under load. All other voltages the same. Temps were the same too.


Under load:


Gonna mess around with it a bit more tonight. Hoping to pull some 4.4Ghz wPrime runs. Just needs to be bench stable for that.

May as well throw in some bench's with it @ 4Ghz.




Edited by R00ST3R - 7/6/10 at 7:49pm
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post #175 of 560
@Ghostleader
Quote:
Hi and welcome to OCN
Thanks .
Quote:
These Lynnfields do tend to run hot and they seems to throttle down at 70C if one not turn of the CPU TM Function.
Fortunately mine has run way above 70°C without throttling, regardless of the TM function being enabled or not.

Quote:
My 875k hit 70C at around 4,2GHz (HT on) with ram at 1600C7, I need ~1,34v vcore and IMC at ~1,26v, LinX or y-cruncher stress test.

I can reach 4,4GHz (HT on) but then I need ~1,50v vcore, ram at 1600C7, IMC ~1,26v, temp hover ~95C
Wow, you seem to have got a really good chip! Mine doesn't even boot into Windows at 4GHz with less than 1.3V.

Quote:
To bad yours not stable at 4,0GHz, hope those in FPO/Batch#: L012B159 can do better.
Actually the one I tested is the L012B159. I am about to test the L012B141.

Quote:
I thing I don´t like about these unlocked 875k is that the uncore is fix to the Bclk with two ratios so at Bclk 133 vs Bclk 200 one lose performance due to a low uncore frequency , so in my opinion it´s no real benefit with a unlocked CPU because one need to run high Bclk to get performace but then again those are not extreme edition so one have to live it
That's weird. Your own post showed that there's only little difference between 133 and 200 BCLKs. As for the benefit of the unlocked multiplier, I think there would be one if could reach higher > 4GHz clocks on one core than on all 4 cores. You might be able to configure your Turbo radios that way. Unfortunately, I can't with my L012B159.

Quote:
BTW: I notice in your sig that you run almost the same gear as I, how you like your MIIIF?
I absolutely love it. Perfect layout, full-cover waterblock available (from EK), no glued-on soon-to-be-outperformed USB3 / SATA3 third-party chipset, removable sound card (I would hate to add a sound card knowing there's an unused on-board chipset still inside), useful status LEDs and even customisable Turbo ratios . How about you?

@cory1234
Quote:
Welcome to OCN.
Thank you!
Quote:
My i7 875k is batch #: L012B141 like your 2 on the way.
Great. I'm eager to read your results.
    
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post #176 of 560
@Rooster

Hey rooster you should try using more memory to see how many gflops you can get.
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post #177 of 560
Quote:
Originally Posted by DoctorNick View Post
@Rooster

Hey rooster you should try using more memory to see how many gflops you can get.
Not much of a difference. Didn't realize it wasn't set on all.

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Black Dynamite
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post #178 of 560
Here is my 4ghz oc, 120 runs of IBT.
Bclk 168x24 = 4032mhz
RAM 168x12 = 2016mhz (8-8-8-24, 2t, 1,65v)
Vcore: Load 1.280v/idle 1.312v
VTT: 1.280, must be higher for full stability i think. (Using 1.320 atm)

Sign me in!

Edited by DoctorNick - 7/8/10 at 10:02am
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post #179 of 560
Quote:
Originally Posted by DoctorNick View Post
Vcore: Load 2.80v/idle 3.12v
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post #180 of 560
Quote:
Originally Posted by Ghostleader View Post
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