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Max Voltage for CPU-NB?

post #1 of 57
Thread Starter 
Right now, I have my Northbridge @ 3100MHz with the CPU-NB @ 1.425V

So the CPU-NB max is the same as the CPU VCore 1.55V or something?

UPDATE HERE: http://www.overclock.net/amd-cpus/10...l#post13329692
Edited by Atomfix - 4/30/11 at 8:31am
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post #2 of 57
I here a lot of people throwing around 1.45v But on the CHIV it seems folks can get stable CPU-NB with lower volts. Though at over 3000mhz like you pushing it higher may be needed.
post #3 of 57
Thread Starter 
Quote:
Originally Posted by Chuckclc View Post
I here a lot of people throwing around 1.45v But on the CHIV it seems folks can get stable CPU-NB with lower volts.
Yeah, from upgradeing my mobo from a 790fx to the CHIV, my Northbridge seem to be alot more stable at a high freq, Iv'e managed to get 3200MHz, but not sure what to keep for 24/7 voltage, my 1055T is idleing at 30C, I'm not sure if that's related to the water in my W/C loop or the cpu block is getting slightly clogged with gunk.
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post #4 of 57
1.55v is what most people believe, its the same as the cpu itself.

Edit: Are you using dye in your loop?

My block gunked up after 4 months of running red anti-freeze through my loop.




Edited by BallaTheFeared - 4/29/11 at 6:27am
    
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post #5 of 57
Thread Starter 
Quote:
Originally Posted by BallaTheFeared View Post
1.55v is what most people believe, its the same as the cpu itself.
That's okay then, the CPU's life doesn't bother me much at all, as soon as it dies, I'm getting a 1090T.

I'm still wondering if my CPU idle temp is normal at the volt's I'm running through it, or is it my W/C loop getting clogged with gunk?
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post #6 of 57
What is your ambient? Do you have the RS or RX 240?
    
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post #7 of 57
Thread Starter 
Quote:
Originally Posted by BallaTheFeared View Post
What is your ambient? Do you have the RS or RX 240?
I believe it's the RS version, and I'm using "Fesser One Purple UV Pre-Mix"

It used to idle around 22-24C but 30C is a bit over the top, but I think it might be related to the 1.42V I'm putting through the CPU-NB and 1.44V through the CPU VCore, I have CnQ and C1E enabled though
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post #8 of 57
You should drain your loop and get some distilled + kill coil or PT Nuke. Without question the dye will separate from the liquid and gunk up your parts like it did with mine.

What does your CPU temp reading say under load? Prime/LinX?
    
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post #9 of 57
Thread Starter 
Quote:
Originally Posted by BallaTheFeared View Post
You should drain your loop and get some distilled + kill coil or PT Nuke. Without question the dye will separate from the liquid and gunk up your parts like it did with mine.
Yup, your right there, I was going to do it 2 weeks ago, but my bday is 2 days away and can't go spending all my money at once

Okay, looks like that's next on my list to get for upgrades, While I'm doing that, I might also get a 360mm radiator xD

I'm going to try and attempt 3200mhz Northbridge, but my RAM is only rated for 1600MHz and it's already at 1664MHz, What do you suggest for max RAM voltage? It's rated for 1.65V and I already have it at 1.68V

Max CPU temp is 52C..... which might be due to gunk, it used to max load at 43C, at 1.65V it maxes at 61C
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post #10 of 57
I believe JEDEC requires DDR3 to be able to handle up to 1.9v, I know a few guys around here are running upward of 1.8v for some of their high end DDR3.

The lower voltage on DDR3 these days is because of Intel.
    
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