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i7 3820 - 4820 Overclock Club - Page 145

post #1441 of 6485
Quote:
Originally Posted by HOMECINEMA-PC View Post

Well i just couldnt help myself.....wheee.gif2559642.png wheee.gif

thumb.gifsmile.gifbiggrin.gifwink.gif Best yet.....

wheee.gifthumb.gif Awesome thumb.gifwheee.gif
drunken.gif
post #1442 of 6485
I got a problem overclocking my i7 3820 anywhere past 4.3GHz. the multiplier set for 46 (4.6GHz), 1.35 V core and vdroop disabled. I tried looking everywhere for what could be the hold back of the processor being stuck at 4.3Ghz and not running the clock speed that I am setting it to. rolleyes.gif Believe me, I'm not new to overclocking or new to overclocking high end boards and processors (i7 980x 4.5GHz stable for a year on rampage iii extreme). I just want to see if anyone here had this kind of problem when overclocking this CPU or if anyone is using X79 classified with the i7 3820.
Edited by kamikaze_ - 10/30/12 at 1:27am
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HAF X79
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post #1443 of 6485
Quote:
Originally Posted by kamikaze_ View Post

I got a problem overclocking my i7 3820 anywhere past 4.3GHz. the multiplier set for 46 (4.6GHz), 1.35 V core and vdroop disabled. I tried looking everywhere for what could be the hold back of the processor being stuck at 4.3Ghz and not running the clock speed that I am setting it to. rolleyes.gif Believe me, I'm not new to overclocking or new to overclocking high end boards and processors (i7 980x 4.5GHz stable for a year on rampage iii extreme). I just want to see if anyone here had this kind of problem when overclocking this CPU or if anyone is using X79 classified with the i7 3820.

You need to use the 125 strap to get higher than 4.3GHz. Or up the BCLK a couple notches over 100. 43x multi is all the 3820 has, as it's a partially locked chip.
    
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post #1444 of 6485
I've been up all night messing with this board. When I put the BCLK at 1.25 it just gives me all sorts of problems to even get that working when I lower down the cpu multiplier below 40. 1.00 105mhz blck, 45 multiplier, 1.350 V core, resulting 4.505GHz was my only success getting pass the 4.3Ghz lock.
HAF X79
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HAF X79
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Hexa-core 600T
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Intel® Core™ i7 3820 @ 4.8GHz 1.38 V EVGA X79 Classified E779 EVGA NVIDIA GeForce GTX 570 Corsair Dominator GT 16GB 2133MHz 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 256GB, Western Digital 1TB (storage) Swiftech Apogee XT Rev.2, Koolance VID-NX580, M... Windows 7 Home Premium 64-bit Acer GD235 
KeyboardPowerCaseMouse
Leopold FC200R (mx brown) Silverstone Strider 850W Cooler Master HAF X Logitech G9x 
Mouse PadAudio
Steelseries QCK+ (Fnatic) ASUS Xonar DX 7.1, PD3000A, X2 JVC 12" tower sp... 
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Intel® Core™ 980x @ 4.51GHz 1.38 V ASUS Rampage III Extreme (deceased) NVIDIA GeForce GTX 570 @ 952MHz Corsair Dominator 6GB 1600MHz 
Hard DriveHard DriveOptical DriveCooling
Western Digital Caviar Green 1TB Crucial C300 64GB SSD Liteon X24 water cooling, as shown in the rig picture 
OSPowerCaseAudio
Windows 7 Home Premium Silverstone Strider 850W Corsair Graphite 600T Special Edition (white) Razer Barracuda AC-1 
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Intel® Core™ 2 Extreme QX9650 XFX nForce 750i NVIDIA GeForce GTX 285 Corsair Dominator 4GB DDR2 
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post #1445 of 6485
Quote:
Originally Posted by kamikaze_ View Post

I've been up all night messing with this board. When I put the BCLK at 1.25 it just gives me all sorts of problems to even get that working when I lower down the cpu multiplier below 40. 1.00 105mhz blck, 45 multiplier, 1.350 V core, resulting 4.505GHz was my only success getting pass the 4.3Ghz lock.

1.25 cpu strap
38 ratio
knock your ram speed back down to the same or under what its rated
1.4v on vcore
if you have load line calibration set to high/on if not stick the vcore on 1.42v and see if it boots if so work on lowering the vcore after or leave it.
I should game.
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I should game.
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post #1446 of 6485
Wonder if these temps are normal (mainly the difference between 1/4 compared to 2/3)

132x38 @ 1.5v
LLC set to high on my R4E
XSPC Raystorm

Core/Temp (*C)
0 82
1 73
2 73
3 82

Thats under load, is it normaly to have a 9*C temp difference between cores?
    
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post #1447 of 6485
Quote:
Originally Posted by trancet View Post

Wonder if these temps are normal (mainly the difference between 1/4 compared to 2/3)

132x38 @ 1.5v
LLC set to high on my R4E
XSPC Raystorm

Core/Temp (*C)
0 82
1 73
2 73
3 82

Thats under load, is it normaly to have a 9*C temp difference between cores?


Temp looks about right and the core temp gap is typical. You can try re-mounting to improve it but there's a chance that just the way Intel's soldering job went and you can't change the core temp gap.
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post #1448 of 6485
Quote:
Originally Posted by tsm106 View Post

Temp looks about right and the core temp gap is typical. You can try re-mounting to improve it but there's a chance that just the way Intel's soldering job went and you can't change the core temp gap.

Entirely off-topic, but if your 3820 rig is your sons, he's one lucky kid - that's a badass setup smile.gif

Also, trancet, I usually don't see a difference of more than 6-7 degrees between core #0 and #1 (hottest and coolest), but then, I'm not at 5GHz, so I'd think your numbers are looking pretty solid smile.gif
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post #1449 of 6485
Most excellent to hear then!

It is just a quick and dirty overclock, I'm hoping i can drop the volts down a bit, but its been so rock solid, i may not even try. Thinking maybe 1.48v may still hold it steady, or maybe go lower with a higher LLC. Dunno, like i said, quick 5 minutes messin with settings, and 20 minutes with some IBT.

Also, forgot to add to that, its an ES chip, bought it release day.
    
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post #1450 of 6485
Thread Starter 
Ive got one as well havent used it yet.....

Ive been assured that its not as good as the retail malay that im running now , so im interested on your adventures with that one! thumb.gif
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