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Setting up and voltage terms for EP45-UD3* - Page 20

post #191 of 282

http://valid.canardpc.com/show_oc.php?id=1830442

Maybe this is a nice chip after-all? 45 minutes into Prime95 Small FFTs, same volts as 4.2... I think I mighta had too many volts running through her at 4.2. 57-58C on the cores after 45 minutes in prime...
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post #192 of 282
Quote:
Originally Posted by chip94 View Post
ok...i tried it with those setting with MCH at 1.3

I can easily boot into windows. But looks like my graphics card driver is corrupted and some apps wont open. I checked IBT and failed on the second pass.

what should i do now?


sounds like you still need more MCH tuning..

*If you run a latency test [with something like Aida, Sandra or MaxxMem] and note your current latency ..it will help in tuning voltage for your MCH.

The ~latency of your NB/MCH corresponds to how much voltage you need to supply it with... same can be said for the quantity of RAM you have.

ie- 50ns latency on P45 will likely need +1.4v NB.. with 2x1GB RAM..
50ns latency with 2x2GB.. likely need +1.45v NB
60ns latency with 2x1 -> +1.3v NB

..and so on.. While the volts required will vary a bit from board to board... the "scale" for latency->NBv is whats important to learn for your system and RAM. Once you know this, moving your OC into another FSB/mem range will be much easier.

In other words.. if your attempting an OC, figure out what range your latency is.. if you loosen things up a bit to keep your latency from getting tighter as you scale FSB, you will not need to raise RAM or NBv at all.
post #193 of 282
Quote:
Originally Posted by DaClownie View Post

http://valid.canardpc.com/show_oc.php?id=1830442

Maybe this is a nice chip after-all? 45 minutes into Prime95 Small FFTs, same volts as 4.2... I think I mighta had too many volts running through her at 4.2. 57-58C on the cores after 45 minutes in prime...
Nice man ,but give P95 Large FFT a try and if you pass it for a couple of hours then you're GOLDEN..

CHEERS..
     
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post #194 of 282
Quote:
Originally Posted by CL3P20 View Post
sounds like you still need more MCH tuning..

*If you run a latency test [with something like Aida, Sandra or MaxxMem] and note your current latency ..it will help in tuning voltage for your MCH.

The ~latency of your NB/MCH corresponds to how much voltage you need to supply it with... same can be said for the quantity of RAM you have.

ie- 50ns latency on P45 will likely need +1.4v NB.. with 2x1GB RAM..
50ns latency with 2x2GB.. likely need +1.45v NB
60ns latency with 2x1 -> +1.3v NB

..and so on.. While the volts required will vary a bit from board to board... the "scale" for latency->NBv is whats important to learn for your system and RAM. Once you know this, moving your OC into another FSB/mem range will be much easier.

In other words.. if your attempting an OC, figure out what range your latency is.. if you loosen things up a bit to keep your latency from getting tighter as you scale FSB, you will not need to raise RAM or NBv at all.
hey,
I used the 333 latch and booted into windows(i cant boot into windows using 400) but with no luck. my graphics card driver doesnt work..and i generally BSOD.

but i've only taken the NB voltage till 1.34..

Should i increase it? till 1.4?
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post #195 of 282
Quote:
Originally Posted by DaClownie View Post

http://valid.canardpc.com/show_oc.php?id=1830442

Maybe this is a nice chip after-all? 45 minutes into Prime95 Small FFTs, same volts as 4.2... I think I mighta had too many volts running through her at 4.2. 57-58C on the cores after 45 minutes in prime...
When you get done please post an MIT of your settings for us to look at. I know I would be interested in knowing what settings are working for you and what the vid of your Q9550 is.
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post #196 of 282
Quote:
Originally Posted by DaClownie View Post

http://valid.canardpc.com/show_oc.php?id=1830442

Maybe this is a nice chip after-all? 45 minutes into Prime95 Small FFTs, same volts as 4.2... I think I mighta had too many volts running through her at 4.2. 57-58C on the cores after 45 minutes in prime...
Wow! Awesome chip you got there !
    
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post #197 of 282
VID is 1.25v for my q9550. I made it 50 min prime small ffts then got a hard freeze. Been inching up volts ever since with shorter and shorter success. Temps are still not going above 61C but stability wise it's a hit rough right now. Up to almost 1.37 in bios to stop the hard freezing. Ill post settings when I can get it stable at or past this point

Strangely my CPU-Z still shows 1.328 even after repeated bumps to the vcore. That make sense with LLC enabled? Board feels that's all it needs? It doesn't drop under load either. Hmmm not sure what to adjust. Hard freezes aaround the 8 minute mark almost everytime through

1.375 vcore is same. Going back to 4.2 til I figure out what to do. I can feel my windows loading getting incredibly slow due to all the locks and boots. Hope I'm not ruining my raid0
Edited by DaClownie - 5/21/11 at 4:23pm
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post #198 of 282
Quote:
Originally Posted by DaClownie View Post
1.375 vcore is same. Going back to 4.2 til I figure out what to do. I can feel my windows loading getting incredibly slow due to all the locks and boots. Hope I'm not ruining my raid0
Why not use Acronis True Image to Image your system partition?
    
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post #199 of 282
Yea, I need to do that eventually... I was running same OC on my E8400 for so long i never thought to. It might be a bit beyond repair now though, I'm having C++ library errors on startup when my WhatPulse tries to load, everest coming in real slow, etc. etc.

BTW is Acronis a free download? If so, I might need to keep a copy ready for transfer from now on... I think I need a reformat anyhow, this install is getting bogged down with crap I don't use anymore.
Edited by DaClownie - 5/21/11 at 4:43pm
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post #200 of 282
Quote:
Originally Posted by DaClownie View Post
Yea, I need to do that eventually... I was running same OC on my E8400 for so long i never thought to. It might be a bit beyond repair now though, I'm having C++ library errors on startup when my WhatPulse tries to load, everest coming in real slow, etc. etc.
I always use Acronis True Image and make Image of C:/system partition before I try crazy overclocks.
    
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