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post #2861 of 5036
Hai guise.

Having some trouble getting 4GHz stable.

I'm running at 286*14, NB=2574 and ram at 572 MHz, 7-7-7-20, CPU-NB = 1.3 and vcore anywhere between 1.45-1.575.

Thing won't last through 1 run of Linx. I don't think it's voltage though. Any suggestions?

EDIT: Oh and when it crashes, it's not BSOD, it's just a black screen.
Edited by doritos93 - 9/17/10 at 11:19am
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post #2862 of 5036
Quote:
Originally Posted by doritos93 View Post
Hai guise.

Having some trouble getting 4GHz stable.

I'm running at 286*14, NB=2574 and ram at 572 MHz, 7-7-7-20, CPU-NB = 1.3 and vcore anywhere between 1.45-1.575.

Thing won't last through 1 run of Linx. I don't think it's voltage though. Any suggestions?

EDIT: Oh and when it crashes, it's not BSOD, it's just a black screen.
First, what is your RAM rated for? Make sure you don't exceed its specifications while you overclock your CPU to eliminate variables. Try a 2T command rate.

Try this:
Make sure your HT is set no higher than 2200MHz. Set the CPU-NB voltage to 1.35V, Vcore to 1.5V. You can set your CPU/NB to a lower speed if you're running RAM at 572MHz. The rule of thumb is CPU/NB = RAM * 3. You'd wouldn't even be saturating at stock settings.

Have you tested your RAM using memtest to rule out any hardware problem?
post #2863 of 5036
^^ Exactly what klaxian said ^^

LinX is brutal on RAM stability, so make sure it's not overclocked too far and that you're feeding it enough voltage.

And try to keep your HT link at ~2000. No real benefit of taking it any higher.
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post #2864 of 5036
Quote:
Originally Posted by klaxian View Post
First, what is your RAM rated for? Make sure you don't exceed its specifications while you overclock your CPU to eliminate variables. Try a 2T command rate.

Try this:
Make sure your HT is set no higher than 2200MHz. Set the CPU-NB voltage to 1.35V, Vcore to 1.5V. You can set your CPU/NB to a lower speed if you're running RAM at 572MHz. The rule of thumb is CPU/NB = RAM * 3. You'd wouldn't even be saturating at stock settings.

Have you tested your RAM using memtest to rule out any hardware problem?
RAM is rated at 1333 or 667 as my sig indicates. Ram is good, HT Link is well under 2Ghz; 1.9GHz.

I've tried CPU-NB as far as 1.40 still no go.
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post #2865 of 5036
hi there


I been reading and reading for a couple of weeks now, but the thing is all the info is spread on the net and there's nobody to backup was have been said


anyway I'm trying to get it all together by asking few questions, perhaps you guys can answer 'em

What about getting the ram overvolt above 1.65v, some say that AMD says that getting the ram more than 1.65v would damage the IMC...

and there's info about that getting RAM up to/close to 2000 MHz would damage the IMC
in fact some say that don't get the RAM at/above 1600 MHz, but some guys in this forum have the RAM above 1800 MHz even at 2000 MHz.

as you can read, all this is related to the IMC, so if you can clear up this for me and for the guys that will come asking the same, that would be just perfect


thanks in advance
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post #2866 of 5036
AMD supports upto 1866mhz. I dont know what the problem with RAm voltages are tbh, im running my OCZ Platinum 1800mhz stuff at the rated 1.95v...
    
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post #2867 of 5036
AMD supports 1866 MHz?

where does it says that?

is not the Motherboard the one that supports that speed?
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post #2868 of 5036
AMD chips don't 'officially' support more than 1333Mhz RAM according to their papers. That doesn't mean you can't use faster RAM, you'll just be limited to what you can get stable with your board and particular chip. Some of the 1055T's have weaker IMC's but in general they're better than those in the Phenom II X4 chips.
    
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post #2869 of 5036
Quote:
Originally Posted by doritos93 View Post
RAM is rated at 1333 or 667 as my sig indicates. Ram is good, HT Link is well under 2Ghz; 1.9GHz.

I've tried CPU-NB as far as 1.40 still no go.
You might be limited by the board you're on. I'm limited with my M4A78T-E board. Though it does well with my RAM.
    
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post #2870 of 5036
Quote:
Originally Posted by GanjaSMK View Post
AMD chips don't 'officially' support more than 1333Mhz RAM according to their papers. That doesn't mean you can't use faster RAM, you'll just be limited to what you can get stable with your board and particular chip. Some of the 1055T's have weaker IMC's but in general they're better than those in the Phenom II X4 chips.

exactly, but some users have the CPU dead as they had RAM running too high

and one of them is me, my cpu died along with one RAM stick as I got my RAM running at 2000 MHZ and just for a couple of days (hours along the day)

But at the same time I had AMD overdrive running, ( and I think messing with Turbo core) so I don't know exactly what happened

anyway I wanted to get all the info together as I might/could/probably get a replacement for my cpu as my dead cpu was delivery today to AMD for RMA
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