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

[andressergio]

Guys for those using the LV Blades PC29600, do you think that 8GB will run at 1200 on my Q9650 wich im on 4500Mhz for 24/7 ?

now in running the gskills 9600 at 4500 / 1200

Cheers
Sergio

[Capt Proton]

Thanks, I can get stable with 200d pl9, just got this ram and was trying for 1150 and up pl8. The ram is low voltage, pc2 9200 1.8v. http://www.newegg.com/Product/Produc...82E16820227457

Right. Missed that set on the OCZ page. PL 9, PL 8, not much difference there I think. Glad you are on the move.

[Dark-Energy]

Damn, it didn't work. 200D failed faster than B, and I even tried different PL and drive strength. I had to bump voltage to 1.440v to get it stable. The VID on this chip is 1.25 though. I have to say I am kind of disappointed that I can't get under 1.4, especially since it's an E0. At least my temps are good. Maybe I will try some clock skews later as a last resort.

[Jor3lBR]

Guys for those using the LV Blades PC29600, do you think that 8GB will run at 1200 on my Q9650 wich im on 4500Mhz for 24/7 ?

now in running the gskills 9600 at 4500 / 1200

Cheers
Sergio

Very hard to OC with 4 slots populated but it's worth a try.

[Jor3lBR]

Hey guys,

Inspired by thebluemeanie1 I decided to go for the 7 Gold Cups available for Q9650 hardware: CPU-Z, PiFast, SuperPi, SuperPi32m, wPrime32m, wPrime1024m and PCMark05. I got 6 out of 7 so I think it's an interesting read for Gigabyte EP45-UD3P owners:

Q9650 - 6 Gold Cups in one Day (conquering the HWBot HOF)

[andressergio]

Very hard to OC with 4 slots populated but it's worth a try.

yep maybe it worth it

congrats on your records mate

[OC Nub]

Dark Energy,57c is fine in Prime. Actually that's pretty good for 1.424v. My e8400 needs close to 1.5v for 4.5ghz.

Very nice Jor3lBr , miss seeing your posts in this thread.

[Hoss331]

Hey guys,

Inspired by thebluemeanie1 I decided to go for the 7 Gold Cups available for Q9650 hardware: CPU-Z, PiFast, SuperPi, SuperPi32m, wPrime32m, wPrime1024m and PCMark05. I got 6 out of 7 so I think it's an interesting read for Gigabyte EP45-UD3P owners:

Q9650 - 6 Gold Cups in one Day (conquering the HWBot HOF)

Nice work! But you might want to work on that 32m wprime.

http://forums.techpowerup.com/showth...12#post1214612

[Jor3lBR]

Nice work! But you might want to work on that 32m wprime.

http://forums.techpowerup.com/showth...12#post1214612

Hey Hoss great scores! But they only accept wPrime version 1.55 thus results are slower on the older version

[Loco23]

Some test with Q9550

[bluestang]

Dark Energy,57c is fine in Prime. Actually that's pretty good for 1.424v. My e8400 needs close to 1.5v for 4.5ghz.

Very nice Jor3lBr , miss seeing your posts in this thread.

So as long as it stays in the low to mid 60's C in stress testing, then volts don't matter or won't hurt it? I have an E8500 E0 VID 1.250 that seems to want above 1.45 (BIOS) to get 8.5 or 9 x 500fsb stable. I haven't tried any higher to get it to work cause I'm afraid of the volts killing my CPU.

So I want to know if it's the volts or the heat? If I keep heat under control, do the volts even matter?

[Loco23]

bluestang, keep heat under control and your processor will be alive

[bluestang]

bluestang, keep heat under control and your processor will be alive

Thanks Loco, I'm waiting on some OCZ Freeze to come in. I will then replace my AC Ceramique with that and also replace the stock fan on my Zerotherm Zen FZ120 with a Scythe S-Flex SFF21G to see what happens with temps.

After that, maybe a Swiftech H20-220 Apex Ultima watercooling kit that Leeghoofd has in his sig.

[Dark-Energy]

Question. Is 1.440v safe on me E8400 E0 for 24/7? The VID on this chip is pretty bad (1.25v), and small FFT temps went to 62C with ambient 19c (64c for both cores in realtemp). I got it for xmas back in december and the packing date is september 2008. I guess I got one of the first batches of the E0, cause from what I have seen on this forum everyone who is running 9 x 500 with less than 1.4 has a newer chip (packed after december). Guess my chip isn't the best?

[D-an-W]

Stick a TrUE on there Dark-Energy, I replaced my AC7 Pro with one and was amazed at the drop in temps...

[OC Nub]

So as long as it stays in the low to mid 60's C in stress testing, then volts don't matter or won't hurt it? I have an E8500 E0 VID 1.250 that seems to want above 1.45 (BIOS) to get 8.5 or 9 x 500fsb stable. I haven't tried any higher to get it to work cause I'm afraid of the volts killing my CPU.

So I want to know if it's the volts or the heat? If I keep heat under control, do the volts even matter?

I don't know about the volts long term. I think 1.3625v is still the max according to Intel. I have heard some say 1.45v on the EO's. IDK but I wanted a 4.4-4.5ghz chip so if it has a short life I'm ok with it. As long as my temps are good its staying where it is.

[Capt Proton]

Damn, it didn't work. 200D failed faster than B, and I even tried different PL and drive strength. I had to bump voltage to 1.440v to get it stable. The VID on this chip is 1.25 though. I have to say I am kind of disappointed that I can't get under 1.4, especially since it's an E0. At least my temps are good. Maybe I will try some clock skews later as a last resort.

If you are still using the settings you posted on the previous page, one glaring problem is your tRfc set to 45. G Skill states it must be at 52. I am running at 48, but tweaked it down to that after getting stable with 54.
Set your Static T Read manually to 11 or higher to get stable.
You should try a lower CPU Ref, not higher.
Bump your MCH Core to 1.4.
Set MCH/DRAM Ref, DRAM Termination, Channel A & B Ref to 50% of DRAM Voltage.
Have you tried stability testing with the CPU Multi at 8? If you have not, you are going about this all wrong. You need to test components, not just throw everything up and blast volts to your CPU.

[coop]

My chip is a vid 1.25v, maybe something on here can help.
[IMG][/IMG]

[Loco23]

I don't know about the volts long term. I think 1.3625v is still the max according to Intel. I have heard some say 1.45v on the EO's. IDK but I wanted a 4.4-4.5ghz chip so if it has a short life I'm ok with it. As long as my temps are good its staying where it is.

1.3625v - maximum VID for the E8190-E8600 processors. Maximum core and FSB Termination voltage is 1.45V. This is from Intel® Core™2 Duo Processor E8000¹ and E7000¹ Series Datasheet.
I used my Q9450 about 4 months at 1.525V, he's still alive
Keep temps below 80 or even below 75C.

[bluestang]

My chip is a vid 1.25v, maybe something on here can help.

It sure can't hurt! Can you post you BIOS settings as well? Also, I see your MCH/DRAM Ref lower than normal...does that help? Much thanks

[bluestang]

1.3625v - maximum VID for the E8190-E8600 processors. Maximum core and FSB Termination voltage is 1.45V. This is from Intel® Core™2 Duo Processor E8000¹ and E7000¹ Series Datasheet.
I used my Q9450 about 4 months at 1.525V, he's still alive
Keep temps below 80 or even below 75C.

Thanks Loco23!
Important numbers I see in the datasheet for E8xxx....

From Table 3, Page 17 --- Vcc (Core voltage with respect to Vss (Ground)) 1.45v max

From Table 3, Page 17 --- Vtt (FSB Term with respect to Vss (Ground)) 1.45v max

From Table 4, Page 18 --- VID range .8500v min to 1.3625v max

From Table 4, Page 18 and Table 5, Page 20--- Core Vcc....This is the confusing part, no direct values given. Has anyone figured thise one out yet?

And then there is the max volts for the P45 Chipset to woory about !!

[fatguy1992]

Did some benching on my E8500 with UD3R this afternoon. In one hour I did.

http://valid.canardpc.com/show_oc.php?id=587845

[bluestang]

Am I right in assuming this with 45nm Duals....

1) Lower VID chips OC higher/better and with less volts, but put out greater heat.
2) Higher VID chips OC a little lower/not as good and with more volts, but put out less heat.

Wondering cause I am think of getting a E3110 (XEON version of E8400) and if it has a lower VID (which the XEONs usually do), then I was going to swap it for my E8500 that has a VID of 1.250. Any suggestions or experience with this. Thanks!

[Loco23]

For me better higher VID.
Q9650 VID 1.2125 at 4.5GHz 1.45v - temp more then 80c, i can't cool it now, in summer.
Q9550 VID 1.25 at 4.37GHz 1.5625v - temp about 77-78с

[OC Nub]

I think lower vid chips do run hotter but take less vcore to reach a given speed. Im not sure they will oc higher in general. All depends how much vcore you are willing to use and what type of cooling you have.