EP45-UD3P Benches 3D at 670mhz+ FSB

[Slovnaft]

hmmm

550 seems to be max i can do with it atm
anyone else using GMH based ICs
i'm on corsair PC10000 dominators here

even at auto i cant boot much past 550 and in windows it also becomes unstable past 570

i can boot to bios past 600 but as soon as it starts to load OS it bombs out instantly
i tested the chip last night on EP45 Extreme and could bench at 620 in windows on air

i've heard of others having trouble with d9gmh on this board too. (well, one other)
i'm hoping it's just coincidence. i've got some d9gmh on their way cos i was hoping it would help me push fsb...
has anyone got d9gmh at 600+ on this board?

[Viss]

Im 99% certain me Ballistix are gmh and they do 600+

[Villainstone]

Well my RAM is D9's they are not MGH. I am using Kingston HyperX 1150mhz, they are GKX not to sure that is why I cannot get higher than 425 though. I am just gonna send it back to newegg and see how the next one does.

[dinos22]

Im 99% certain me Ballistix are gmh and they do 600+

yeah they probably are
could be a weak MCH i donno

[Gautam]

Dino are you using 333 strap? I was trying 400 for a while and it was killing me.

[dinos22]

Dino are you using 333 strap? I was trying 400 for a while and it was killing me.

333 strap yes

400 strap is for DDR3 board from Giga like EP45T Extreme
333 works good with their DDR2 boards..donno why but thats where its at

[Gautam]

Weird...haven't really tested dual core much yet, but it's doing pretty well with quad. :p (540-ish benchable)

[Villainstone]

Weird...haven't really tested dual core much yet, but it's doing pretty well with quad. :p (540-ish benchable)

What are your settings in the bios?

[Gautam]

Surprisingly low-key actually. 333 strap, termination at 1.44, PLL at 1.65, northbridge at 1.64, and that's about it really, rest on auto. I boot in at 535 and setfsb up from there. More voltage than that seems to make things worse.

[Slovnaft]

Surprisingly low-key actually. 333 strap, termination at 1.44, PLL at 1.65, northbridge at 1.64, and that's about it really, rest on auto. I boot in at 535 and setfsb up from there. More voltage than that seems to make things worse.

wow i need like 1.5 term, 1.7 pll. and 1.82 vnb for 540 benchable. granted on 8x multi, wonder if 6x would get me some more fsb
this board has me wondering whether 600 is possible on a quad...

[Gautam]

The problem for me is that I can't go any higher than 1.64 nb or it starts getting really unstable, and it needs every last ounce of northbridge voltage more than anything else. Gotta try the same thing on my EP45T Extreme...got a feeling it'll fare better.

[Slovnaft]

what's your nb under?
i plan to get it under dice to eek out some more volts.
oh and i've taken to the habit of setting volts with et6 as well.
i know it's kindof lazy, but it seems to work...

[BulldogPO]

Any new bios versions out yet?

[Mrki]

Here my QX9650. Non Auto Settings.

First boot 500 and prime. I test voltages of lower.

[radaja]

heres my best with my E8500(so far)

[Slovnaft]

Wow that's really high vtt and vpll for that QX9650.
Maybe take vtt down to 1.4 or 1.42, vpll down to 1.61, and move vcore up to 1.31-1.33
Ought to do it.

[Mrki]

Wow that's really high vtt and vpll for that QX9650.
Maybe take vtt down to 1.4 or 1.42, vpll down to 1.61, and move vcore up to 1.31-1.33
Ought to do it.

VCore is enogh for that MHz. Test ist with small fft.

I will test for lower Voltages. Thats not optimzed. I test it yesterday evening for 30min.

Thats not the end

[Gautam]

what's your nb under?
i plan to get it under dice to eek out some more volts.
oh and i've taken to the habit of setting volts with et6 as well.
i know it's kindof lazy, but it seems to work...

Don't want to discourage you, actually all the more want to see how it goes, but I did try the nb under DI and it seemed way worse than it was on air. It wasn't even remotely stable at 530MHz anymore. It seemed to me maybe the nb doesn't like cold.

[Slovnaft]

Don't want to discourage you, actually all the more want to see how it goes, but I did try the nb under DI and it seemed way worse than it was on air. It wasn't even remotely stable at 530MHz anymore. It seemed to me maybe the nb doesn't like cold.

i'm thinking (hoping) our mch chips are behaving clinically different.
seeing as you're seeing no gain beyond ~1.64v, and mine seems to be scaling well beyond 1.8 (the difference between 8x 540fsb valid and 8x 545 was 1.80 to 1.82vnb), I'm hoping mine will benefit from the cold and some more volts.

[slash777]

With this settings my System is not stable :



After start from Prime Core 1 and Core 3 shuts down .

The cpu works perfect at this vcore, i think its the northbridge .

[Slovnaft]

Ok so some of your cpu voltages are too high, bring them down.
try vtt-(1.32-1.42), pll-(1.57-1.61), vcore-1.33,
VNB is your problem, so try 1.5v, you might need up to 1.56v to be totally stable, but we'll see.

I know this is kindof hard to see, but this is my Q9450 relatively stable at 4ghz

http://img514.imageshack.us/my.php?image=4ghzeh9.jpg

using 1.61pll, 1.42vtt, 1.33vcore (1.31 real), and 1.5vnb

[slash777]

VNB = CPU Termination ?

[Slovnaft]

VNB = CPU Termination ?

vtt=cpu termination.
vnb= mch core

also, enable LLC!

[Viss]

VNb = MCH core
VTT = Termination

hehe

[RobinL]

Team Group

also don't forget that this board has 8 layer design and 2oz copper layers which should improve RAM clocking somewhat too
hicookie did however say that the RAM he uses is really nice...he reckons they are really onto something

What type of team group?