** Official ** Gigabyte UD3 P45 Series -- EP45-UD3 / EP45-UD3R / EP45-UD3P

[fatguy1992]

I don't have a how to answer but I can tell you in my efforts to get my Q9650 prime stable at 4450mhz (which I am still failing at btw) I played with most of the reference & voltage settings & found a strange thing.

The board displays the std/normal value e.g. MCH Reference = 0.760, ET6 also displays 0.760 but if with my quad you try booting with this value set to (I think) 0.766 the board wont boot. I found I needed to manually set 0.924 to get my board running prime. ET still displays 0.760 even though I manually set 0.924 in BIOS.

Which brings me to my point....... I would find the value you need to set to boot & simply test/fine tune up & down from there for each value.

I could find no benefit tweaking any of the values you are interested in "DRAM Termination, MCH/DRAM Reference and Channel A & B references" with my rig & 4 x 1GB sticks running up to 1250mhz.

CN

Thanks

The reason I think its effecting my is cause I setting wouldn't work with my DRAM volts at 2.02v but then when I put them to 2.0v it worked great. WTF. So i'm thinking that with 2.0v and whatever the MCH volt was it had a good reference or termination or something. Therefore I want to know how to set them up right so I can always get a good reference or whatever it is. I hope that made some sense.

Right now I'm Priming on 500x8.5 = 4.25GHz at 1:1 5-7-7-19. It gave me about a 30 sec - 1 min greater/worse HyperPi 32M score than 455x9 = 4.1GHz did at 4-4-4-12. Any suggestions? I realize that a better and/or worse HyperPi time doesn't necessarily mean anything in the scope of things, but I was just curious.

EDIT: 4.25GHz failed, but now I'm Priming with 475x9 @ 5-5-5-15 = 4.275Ghz. Got a bit better HyperPi 32M score, but still a ways off of 4.1 @ 4-4-4-12.

Well 500MHz (1000MHz) @ 5-7-7-19 is very loose. U should be able to run 5-5-5-15. Maybe a reason y its failing is because ur MCH volts are too low, what are u running it at? I found that when added my extra 2 sticks I needed quite a bit more MCH volts to run it stable. Therefore with 8GB...

Edit: Make sure ur ram performance thingy is set on standard.