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

[X.T.R.E.M.E_ICE]

X.T.R.E.M.E ICE,why did you downgrade?

2 Reasons.

1. Starting new job next week and won't be home for 3 months at least.
2. i7 platform sux when it comes to keeping stable.


I had it stable at 4GHZ 24/7 and 3D stable at 4.2-4.3GHZ but you get programs that randomly crash the whole platform is a disaster. Performance compared to core 2 Quad is fantastic but not worth wasting my time with. Even at stock speed some programs would crash. I will wait for board and CPU revision before i Upgrade again.

[fatguy1992]

I was having a similar prob before (with my current setup) and it kept getting worse every week. Now I got my UD3P and reformatted all the prob's are gone. I asked on a different forum a while ago and was told that i had a bad windows install .

[Solid Snake]

i have a little problem .

my EP45 UD3P not exceed 520 FSB

I have tested with an E6550 mult x7

any suggestions?

[fatguy1992]

i have a little problem .

my EP45 UD3P not exceed 520 FSB

I have tested with an E6550 mult x7

any suggestions?

Post all ur settings. That way it'll be easier for ppl 2 help .

[fatguy1992]

Could someone please tell me how to set up DRAM Termination, MCH/DRAM Reference and Channel A & B references?

Thanks

[Xiode]

Is it more important to have a higher RAM speed or tighter timings? Right now I'm running 4.1GHz @ 8GB 4-4-4-12 on a E8400 (455x9, 1:1). I've seen people get faster times on HyperPi 32M with slightly lower clocks though. Just FYI, I'm using XP Pro 64-bit. For whatever reason, Vista 32-bit actually felt faster.

[fatguy1992]

From my tests I get better bandwidth at higher speeds.

[C-N]

Could someone please tell me how to set up DRAM Termination, MCH/DRAM Reference and Channel A & B references?

Thanks

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

[Xiode]

From my tests I get better bandwidth at higher speeds.

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.

[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.

[pyongmu]

Could someone please tell me how to set up DRAM Termination, MCH/DRAM Reference and Channel A & B references?

Thanks

The default DRAM Termination, MCH/DRAM Reference and Channel A & B references are 50% of the vdimm. Start from that point and go lower to tweak. If working from the ET6 and want to "move" those settings to BIOS, set the vdimm to 1.8V in bios first, followed by setting the DRAM Termination, MCH/DRAM Reference and Channel A & B references to the ET6 values, then raise the vdimm to the previous value. The reference volts will self adjust as the vdimm is adjusted.

[fatguy1992]

Thanks so much

So say i need to run 2.4 vdimm, i'd set my DRAM Termination, MCH/DRAM Reference and Channel A & B references to 1.2?

[pyongmu]

Thanks so much

So say i need to run 2.4 vdimm, i'd set my DRAM Termination, MCH/DRAM Reference and Channel A & B references to 1.2?

If you boot to windows at 2.4 vdimm and 1.24 refenences and check the settings with the ET6, they will all be .9V, just as if the reference volts were set to "auto." Tweaking is done by adjusting the reference volts lower than the default 50% vdimm levels.

[Jor3lBR]

If you boot to windows at 2.4 vdimm and 1.24 refenences and check the settings with the ET6, they will all be .9V, just as if the reference volts were set to "auto." Tweaking is done by adjusting the reference volts lower than the default 50% vdimm levels.

Interesting, why lower then 50% is better?

[pyongmu]

Interesting, why lower then 50% is better?

It's based solely on my limited experiments after figuring out how the settings in BIOS relate to what's displayed in the ET6. I haven't yet run into a situation where any of these vdimm referenced termination settings above 50% vdimm had any positive effect. If your experiences were to the contrary, please share.

[SpeedEuphoria]

Leave the ram references on auto and they will correctly be automatically set to 50% of the Dram voltage, but ET6 will report .90v even though they are really 1/2 of the Dram V.

[Ghostleader]

Ghostleader,

try the above voltage setting in your BIOS, i just booted with this setting and run a few quick system tests as you see in the pic.

to see if you can get a stable system with the voltage setting, if so, and with 2x1GB RAM, you can try lower MCH core and CPU termination voltages,
and then retest your overclock again, i would say MCH core 1.30-1.36v, CPU termination 1.20-1.30v, also try MCH ref. value 0.68v and maybe 0.72v (of VTT 1.20v),
for memory timings, you may want to first try setting Auto, and if you set Turbo, the board's bios will enter SPD's (usually, it will be using timing of the module when running at DDR2-800) timings and this should work ok with a good overclocking ram kit like yours.

i hope this helps.


-----------------
note-- in order to use the ET6's voltage setting value in your BIOS, for example, if you want to try my voltage setting (above),
the easy way is to first set VTT to 1.20v, Vdimm 1.80v,
and then set the other voltage and ref. settings using the value shown in the ET6 and go back to VTT and Vdimm and change the 2 values last.
----------------------------------

Thank you pangingIII, awesome help as usuall, much appreciated.

Sorry for the late response, I have had some Christmas computer time off.


All my RAM sets are okey according to Memtest86+ and since I can run FSB 450 RAM 1200 CAS5 and FSB 500 RAM 1333 CAS5 without error in LinX, Prime95 blend and HCI design Memtest, I reckon there´s nothing wrong with my RAM, it most be something else.


I remembered when setup FSB 500 RAM 1333 CAS5 I first tried with MCH core 1,40v but no boot, then I tried 1,30v and it boot okey in to Windows.

Well I tried the same with 500 1200 CAS5, start at 1,30, no boot, tried 1,28, no boot and 1,26 and it booted in to Windows.


With P35 and X48 it usually was to low volt if it didn´t boot okey but with this P45 it seems to the other way around, very interresting board this EP45-UD3P.


So with CPU Term 1,28, MCH core 1,22 and MCH ref 63,5% I was running 500 1200 555 15 tRD8 Turbo Stable.

GIGABYTE GA-EP45-UD3P BIOS F4 E8400 C0 2x1 Kingston HyperX PC9600 Micron D9GKX   

MB Intelligent Tweaker(M.I.T.)   
   
Robust Graphics Booster ..................: Auto  
CPU Clock Ratio ..........................: 8   
Fine CPU Clock Ratio......................: 0   
CPU Frequency ............................: 4.00GHz (500x9)  
    
Clock Chip Control    
Standard Clock Control    
CPU Host Clock Control....................: Enabled   
CPU Host Frequency (Mhz) .................: 500  
PCI Express Frequency (Mhz) ..............: 100   
C.I.A. 2..................................: Disabled    

Advanced Clock Control   
CPU Clock Drive...........................: 700mv    
PCI Express Clock Drive...................: 700mv    
CPU Clock Skew (ps).......................: 0ps    
MCH Clock Skew (ps).......................: 0ps   
   
DRAM Performance Control    
Performance Enhance......................: Turbo  Have test Standard 
MCH Frequency Latch......................: 333MHz   
System Memory Multiplier ................: 2.40B  
Memory Frequency (Mhz) ..................: 1200    
DRAM Timing Selectable ..................: Manual  

Standard Timing Control   
CAS Latency Time.........................: 5  
tRCD ....................................: 5  
tRP......................................: 5   
tRAS.....................................: 15    
Advanced Timing Control [Press Enter]    
tRRD.....................................: 3  [Auto]  
tWTR.....................................: 3  [Auto]  
tWR......................................: 6  [Auto]  
tRFC.....................................: 42 [Auto]  
tRTP.....................................: 3  [Auto]  
Command Rate (CMD) ......................: 0  [Auto]  
Channel A    
Channel A Timings Settings     
Static tRead Value......................: 8

Channel B    
Channel B Timings Settings     
Static tRead Value......................: 8
    
Motherboard Voltage Control    

Load-Line Calibration.....................: Disabled   
CPU Vcore...............1.22500V..........: 1.43750   
CPU Termination.........1.200V............: 1.280    
CPU PLL.................1.500V............: 1.500  
CPU Reference...........0.760V............: 0,810 (63,5%)  
MCH/ICH    
MCH Core................1.100V............: 1.220
MCH Reference...........0.760V............: 0,72
MCH/DRAM Reference......0.900V............: Auto   
ICH I/O.................1.500V............: 1,500   
ICH Core................1.100V............: 1,100   
DRAM    
DRAM Voltage............1.800V............: 2,300
DRAM Termination........0.900V............: Auto   
Channel A Address Vref..0.900V............: Auto   
Channel B Address Vref..0.900V............: Auto   

Advanced Settings    
Limit CPUID Max. to 3.....................: Disabled    
No-Execute Memory Protect.................: Enabled  
CPU Enhanced Halt (C1E)...................: Disabled    
C2/C2E State Support......................: Disabled    
x C4/C4E State Support....................: Disabled    
CPU Thermal Monitor 2(TM2) ...............: Enabled   
CPU EIST Function.........................: Disabled    
Virtualization Technology.................: Disabled 

[ezaleina]

@Ghostleader
Nice result man..want to ask.,do u use active cooler for 2.3v ram?and what cooler do u use..tq

[Ghostleader]

@Ghostleader
Nice result man..want to ask.,do u use active cooler for 2.3v ram?and what cooler do u use..tq

Thank you

Yes, I´m using active cooling, Arctic cooling RAM Cooler.

I have also change the original heatspreader to Nexus heatspreader.

At 2,30v@1200MHz with original Kingston HyperX heatspreader I was above 60C without fan and with Nexus not above 45C without fan.

So with 2,30v@1200MHz, Nexus heatspreader and Arctic cooling RAM Cooler, around 35C.

This is with a temp probe between the heatspreder and the PCB, this was take with my Rampage Formula Rig.

I´m running EP45-UD3P in a open bench.

[voigts]

I read through this entire post, and thanks to Zodden and Rajada's info on page 4, I'm currently running Prime 95 at 8.5x500 on my E8500 at 1.375v. I'm no super experienced overclocker, and their settings have given me a great place to start.

I have one question. What is the benefit of running a higher FSB with a lower CPU multi vs a higher multi and lower FSB? I see most people doing the former, but haven't really found an explanation as to why. Is it to be able to run the RAM at a faster speed?

[pangingIII]

@Ghostleader,
that's nice of you to say that. i didn't think your ram was bad but i used to have similar problem that i could not boot a board that i configured it to run ddr1200 and i recalled trying about the same things that i told you to try before. i think it's okay to use 2.3v vdimm on the HyperX PC9600 kit when you're using it for ddr1200, i also use 2.3v for a long time on a few different boards,
on this UD3R i find it that i can use the ram kit at ddr1200 with below 2.1v, however, i still like to keep the vdimm at not below 2.2v. but i'm sure each board and each ram kit is different, only the user knows best on how to use their own hardware.
anyway, i’m glad you didn’t give up on the overclock and then you got what you wanted.

[Ming@s]

what is the best overclocking bios for the UD3R?

F3 F4 F5???

[Ghostleader]

I read that some guys could run tRD8 with FSB 500 RAM 1000 (1:1) CAS4 but I could´t get that to work but then I noticed that I could run 1:1 with two different latch (strap), 333 or 400.

With 400 I could run one step lower then with 333, hence slightly better performance, it´s awesome to get that low tRD at that FSB with 1:1.


I think this is very interesting, so I thought that I dedicate a post with this even thou it isn´t new for some but for some maybe it´s.


Here´s some example.

500 4000 1000 444 12 tRD8 Latch 400 Multi 2.00D


500 4000 1000 444 12 tRD9 Latch 333 Mutli 2.00B


500 4000 1000 555 15 tRD9 Latch 400 Multi 2.00D


500 4000 1000 555 15 tRD10 Latch 333 Multi 2.00B

[oniL]

have ep45-ud3p a Trusted Platform Module?

[yomny]

for you guys that have gotten over 400 fsb what voltage did you use one your MCH or IC? I cant seem to boot (using 6 multi) at anything above 390 not even with 1.4 MCH all else stock.