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

[Jupiler]

andressergio and radaja :

Awesome clocks, congrats to both of you.

[radaja]

thanks Jupiler

[Jupiler]

And thank you too for the compliment.

I'm trying 4400Mhz with 1.392V now, but I'm getting an error on one of the cores at the 8k test.
My CPU scales pretty well though :
4000Mhz with 1.232V ( haven't tried lower though)
4100Mhz with 1.264V

[andressergio]

andressergio and radaja :

Awesome clocks, congrats to both of you.

thanks mate

[andressergio]

And thank you too for the compliment.

I'm trying 4400Mhz with 1.392V now, but I'm getting an error on one of the cores at the 8k test.
My CPU scales pretty well though :
4000Mhz with 1.232V ( haven't tried lower though)
4100Mhz with 1.264V

whats your MCH and vdimm ? tou tried a notch of vcore ? like goin' to 1,408 ?

Sergio

[Jupiler]

Tried upping MCH from 1.28 to 1.34V.
VDimm is at 1.80V, running some OCZ LV1066. They run pretty good. I posted some results in the Bandwith section :

http://www.xtremesystems.org/forums/...&postcount=287

http://www.xtremesystems.org/forums/...&postcount=308

[coop]

Only nine post from the 22nd to 27th. Must have been the calm before the storm. Flurry of fantastic results yesterday and today. Very impressive. Congrats.

**edit,I srly was going to do this this wk end, but got tied up w/other stuff. radaja, thank you.
[IMG][/IMG]

got a bit better time.
[IMG][/IMG]

[andressergio]

Tried upping MCH from 1.28 to 1.34V.
VDimm is at 1.80V, running some OCZ LV1066. They run pretty good. I posted some results in the Bandwith section :

http://www.xtremesystems.org/forums/...&postcount=287

http://www.xtremesystems.org/forums/...&postcount=308

My 2x2GB Gskills need 1,4+ MCH...post all your settings so we can help you

cheers
Sergio

[rubber5]

i have overclocked my cpu q9450 from 2.66 to 3.5 and the memory is now at 876mhz i have been using intel burn test at the max setting using vista ultamate 64bit using 7250mb of memory @20 tests and it was stable
i also ran 200 tests on custom @64 mb and passed again the temps and volts are in bios

volts @1.2
rest of mobo 2 noches above standard volts
core 0 @71c
core 1 @71c
core 2 @63c
core 3 @63c maximum temp using air cooling

temp monertering using zalman zm-mfc2 controller
room temp @27c man its hot today

PS WHAT SPEED OVERCLOCK IS CLASED TO BE AN EXTREME OVERCLOCK IE 1GHZ OR 2GHZ ECT

gigabite EP45UD3R
motherbord @40c by heat sink (thermalright HR O5 SLI/IFX)
memory @46c (temp probe between dim 1-2) for most heat
@2.08 volts 4.4.4.12.

is thease temps and overclocks good for 24-7 use becuse i want it to be good for atleast 4-5 years what do you guys think

thanks for everytone thats helping me on this

[Oztopher]

Seems everyone's having the same problem with the EP45T-UD3R... i can't get mine to run at 1600 CAS 7, like my ram is rated for. I have a 2x2GB OCZ platinum kit, 1600 CAS 7, 1.9v.

I can get it to boot, but as soon as i run prime blend it fails immediately. No matter what timings, voltage and strap i use, it's all the same...

Now, i started playing with the driving strengths, and these made a huge difference ! set them all to +8, just for the sake, and it made it last 10-20mins on prime blend before fail... quite the difference.
Too bad the board doesn't have the driving strength profiles... it's hard to tune all 8 settings for both channels

Does anyone have any experience with the driving strengths? care to share ?

[rubber5]

Seems everyone's having the same problem with the EP45T-UD3R... i can't get mine to run at 1600 CAS 7, like my ram is rated for. I have a 2x2GB OCZ platinum kit, 1600 CAS 7, 1.9v.

I can get it to boot, but as soon as i run prime blend it fails immediately. No matter what timings, voltage and strap i use, it's all the same...

Now, i started playing with the driving strengths, and these made a huge difference ! set them all to +8, just for the sake, and it made it last 10-20mins on prime blend before fail... quite the difference.
Too bad the board doesn't have the driving strength profiles... it's hard to tune all 8 settings for both channels

Does anyone have any experience with the driving strengths? care to share ?

i dont know if it is or not but raise the volts up 2 noches with the ram but i thught 1.9 will be low to dont go any higher that 2.1volts if your running stock latencies if that dont work only try 1 stick of ram and then the other stick to check if its the ram at fault but also try the memory in diferent slots as well thats all i can think of to be honnest if that dont work i really dont know

[Jupiler]

Won't be able to do it ATM.
Way to warm now, 28°C outside, 27° roomtemp.
At 4400Mhz and 1.408V, watertemp goes up to 30°C, CPU temps in the high 60'.
Have to wait until it cools down a bit (which won't happen this week)

My 2x2GB Gskills need 1,4+ MCH...post all your settings so we can help you

cheers
Sergio

[Oztopher]

i dont know if it is or not but raise the volts up 2 noches with the ram but i thught 1.9 will be low to dont go any higher that 2.1volts if your running stock latencies if that dont work only try 1 stick of ram and then the other stick to check if its the ram at fault but also try the memory in diferent slots as well thats all i can think of to be honnest if that dont work i really dont know

Hi Mate, thanks for that. I never tried going over 1.95v, as that's the RAM's limit according to OCZ (not the rated voltage, but the 'EVP'). But i just tried 2.0v, and it went from immediate fail, to it failing on the 3rd test, so i bumped it up to 2.06v, and it was passing a good few tests before i stopped it, so it defintely works... but it's just annoying how i have to run so much volts through it. :/

I also found out a while ago, when i was only using 1.92v, that lowering the DRAM reference voltages from 50% of DRAM voltage also help with stability. Maybe i could comprimise here; have lower references with higher voltage, could possibly bring it down a bit from 2.06v .

These are the ref's i'm on about:

MCH/DRAM Ref
DRAM Termination
Channel A Data Reference
Channel B Data Reference
Channel A Address Reference
Channel B Address Reference

Thanks

[Dr.Paneas]

Is there anyone that can tell me "how" to set my VTT (CPU Termination) ? ( I mean the idea and the concept of thoughts).
Is there any template ? eg for FSB ~ 400 --> VTT should be around 1.2 - 1.3 . . . . or how ?

[Capt Proton]

Is there anyone that can tell me "how" to set my VTT (CPU Termination) ? ( I mean the idea and the concept of thoughts).
Is there any template ? eg for FSB ~ 400 --> VTT should be around 1.2 - 1.3 . . . . or how ?

It can vary, but should be no higher than .1 below CPU Voltage.

[andressergio]

Only nine post from the 22nd to 27th. Must have been the calm before the storm. Flurry of fantastic results yesterday and today. Very impressive. Congrats.

**edit,I srly was going to do this this wk end, but got tied up w/other stuff. radaja, thank you.
[IMG][/IMG]

very nice mate !!!

[thebluemeanie1]

It can vary, but should be no higher than .1 below CPU Voltage.

Where did you come up with that figure?

Only nine post from the 22nd to 27th. Must have been the calm before the storm. Flurry of fantastic results yesterday and today. Very impressive. Congrats.

**edit,I srly was going to do this this wk end, but got tied up w/other stuff. radaja, thank you.
http://img208.imageshack.us/img208/9118/94485503.jpg

Great job. If you want to improve the Pi time even more try out the F4-4 BIOS. It made a pretty large difference for me.

[radaja]

coop,nice OC there

[coop]

Thanks andressergio. I was inspired by your and radaja's and other post prior. Great motivation. Great job to all.

edit: I changed mems but still was unable to get more than 1m. By lowering dram volts and changing mch ref a notch, I was able to get 8m. Very picky, but the difference is alot.
[IMG][/IMG]

[Dr.Paneas]

It can vary, but should be no higher than .1 below CPU Voltage.

So are you telling me that the "rule" is VTT max = VCore + 0.1 ?

[rubber5]

Hi Mate, thanks for that. I never tried going over 1.95v, as that's the RAM's limit according to OCZ (not the rated voltage, but the 'EVP'). But i just tried 2.0v, and it went from immediate fail, to it failing on the 3rd test, so i bumped it up to 2.06v, and it was passing a good few tests before i stopped it, so it defintely works... but it's just annoying how i have to run so much volts through it. :/

I also found out a while ago, when i was only using 1.92v, that lowering the DRAM reference voltages from 50% of DRAM voltage also help with stability. Maybe i could comprimise here; have lower references with higher voltage, could possibly bring it down a bit from 2.06v .

These are the ref's i'm on about:

MCH/DRAM Ref
DRAM Termination
Channel A Data Reference
Channel B Data Reference
Channel A Address Reference
Channel B Address Reference

Thanks

thats ok it all about messing with the volts (but been carefull aswell) at the same time i wish someone would help me becuse im overclocking my memory by about 78mhz but i dont know if it will reduce the life span a lot or not i hope my rig will last me about 4-5 years and hopefully i will be getting a gtx 295 soon cant wait

[Dr.Paneas]

Could you tell me about MCH Frequency Latch and System Memory Multiplier ?
I can't understand them.

I only know about dividers.
1:1 Synchronous mode ( eg FSB: 400 --> MEMORY 800)
Asynchronous using other dividers (1/2. 4/5 etc)

[andressergio]

Thanks andressergio. I was inspired by your and radaja's and other post prior. Great motivation. Great job to all.

edit: I changed mems but still was unable to get more than 1m. By lowering dram volts and changing mch ref a notch, I was able to get 8m. Very picky, but the difference is alot.
[IMG][/IMG]

you too mate

i'm on my way to the 4900



Cheers
Sergio

[Oztopher]

Managed to get 1600mhz somewhat stable at 1.96v bios set, lowered the ref's to 0.71 (easytune set). Tried 1700mhz cas 8, but was impossible almost.

[radaja]

Thanks andressergio. I was inspired by your and radaja's and other post prior. Great motivation. Great job to all.

edit: I changed mems but still was unable to get more than 1m. By lowering dram volts and changing mch ref a notch, I was able to get 8m. Very picky, but the difference is alot.
[IMG][/IMG]

ive been trying to get 32m stable at 5ghz too but so far no luck.i got it to
make it to the 21st iteration and then the error message.so i uped the vcore
and it only ran for about 2 test's and error.strange.ill keep trying though,i really want to get that 32m down