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i7 3820 - 4820 Overclock Club - Page 467

post #4661 of 6510
Quote:
Originally Posted by HOMECINEMA-PC View Post

Hey Pedro back from hols yet ? redface.gif
4004 onward has early ivybee support
I thought that for me best early bios was 2105 and the last is 3602 which I think is a R4E bios smile.gif

And could you get more out of 2105 than 3602???
     
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post #4662 of 6510
Quote:
Originally Posted by glnn_23 View Post

Hi Adam101
I would not recommend 4302 to run a 3820. I have tried 2104, 3501,4104 and 4302.
4302 was wrong for the 3820 and was the worst by far for overclocking
3501 was good but 2104 I found the best. It would OC the highest and use slightly less volts so I went back to this older bios.
This was on a Sabertooth

glnn - I'm on a Sabertooth 3820 setup and I upgraded the bios and just started to OC it and couldn't figure out why I couldn't even boot Windows at a 4.7 Ghz multi, when the previous bios was dead stable at 4.8ghz. I tried everything, additional boot voltage and all. It just didn't make sense, no matter how much voltage I would throw at it, ti just wouldn't get it to boot Windows. I finally got 5.0 Ghz to post, but never into Windows, no matter how much Vcore I threw at it.

Quote:
Originally Posted by ProjectZero View Post

I seemed to have solved the issue with booting into windows with 47 multi... i just had to lower my PLL (currently on 1.523) and increase my vcore (was +.06 to +.09) and it started booting into windows... I just wanted to ask if changing the PLL would have any negative effects?

I'm gonna have to give it a try at this IBE bios. I think the IBE support is killing the 3820 performance

Quote:
Originally Posted by glnn_23 View Post

Hi PedroC1999

I found it takes .015-.02 less volts on my unit with 2104 than 3501 at very high clock speed ie. 5.375ghz on same day. With 4302 big struggle even to get into windows over 5ghz.

There are lots of people hating on IBE, but I think that there are succinct differences between SBE and IBE. Generational differences in fact. If glnn can pull an easy 5.375 with one BIOS rev that doesn't support IBE and he and I can't even boot 5 Ghz w/ IBE support, they must be trying to accomodate for architectural differences.

IBE released a new feature that allows for in OS application based OC, so that using Intel XTU, you can say "program X is single threaded, so run one core just for that prog at high multi." They talk about it on this video at 9:40 and later in the video JJ points out that the new X79 Deluxe actually has firmware support updated specifically for IBE, so there is an architecture difference for sure, minor or big, it does exist.
post #4663 of 6510
0.02 IS LOADS!

I will try later, can I ask how much BCLK adjustment these things like? I'm at 107*43, still on 100 strap, but now pulling reasonable clockspeed, what are the chances im gonna get to 109.1 so I can get 4.7?
     
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post #4664 of 6510
Quote:
Originally Posted by PedroC1999 View Post

0.02 IS LOADS!

I will try later, can I ask how much BCLK adjustment these things like? I'm at 107*43, still on 100 strap, but now pulling reasonable clockspeed, what are the chances im gonna get to 109.1 so I can get 4.7?

Don't touch BCLK. Use straps and 35x and then try to get up by multiplier. BCLK should stay at 100.
post #4665 of 6510
Quote:
Originally Posted by Raghar View Post

Don't touch BCLK. Use straps and 35x and then try to get up by multiplier. BCLK should stay at 100.

Why not? lol

And it seems stable now (43*107)=4600, so should I switch over?
     
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post #4666 of 6510
Quote:
Originally Posted by PedroC1999 View Post

Why not? lol

And it seems stable now (43*107)=4600, so should I switch over?

It's hard on the other components on the bus (memory and gpu). 7mhz is a pretty aggressive bclk overclock to begin with.
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post #4667 of 6510
In my case, my 7950's are rock solid, RAM, just tested it, is fine and my CPU has got to 25 runs of memory intensive IBT and counting, I wont go further, but is it safe, (Also my temps are sub 60 on CPU, and sub 40 on GPU) to stay as is, the memory speed is optimale see
     
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Samsung 850 EVO 250GB WD Caviar Blue 1tb 7200RPM WD Caviar Blue 1tb 7200RPM WD Caviar Blue 500gb 7200RPM 
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post #4668 of 6510
Decided to play a little, disabled hyperthreading, couldn't quite hit 5.2.



http://valid.canardpc.com/f5kmr4
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post #4669 of 6510
I downgraded the BIOS on the Sabertooth to 3501 and it boots Windows now at 4.8 ghz. Time to tune and tweak it to go higher.
post #4670 of 6510
Thread Starter 
Quote:
Originally Posted by PedroC1999 View Post

I guess, what is the difference between 2xxx and 4104?
Trim on raid
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