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

[fatguy1992]

I just got my Q6600 to 3.9GHz





I almost got 4.1GHz, but it was 2 hot today 2 push the volts any higher .

[siyah]

here is my new giga UD3R bios F4 with my 24/7 Settings i have now v-core 1,27V amd its game and prime stabil.

i have before a asus p5Q-E and its not stabil.

[EliTE22]

Thanks elite. How stable are your 4.4/4.5 settings? What stabilty tests have you used? Once again very nice work.

i run both 4.4 & 4.5 for one hour prime (i was in a hurry, will test longer soon) and alot of benching also play FC2 for 3hrs on 4.5GHz, on 4.6 id ENABLE Load-Line Calibration because of random freezing, seem to fix it, have not run prime for more than 15min, will hopfully test it latter,
i did get to 4.7GHz
http://valid.canardpc.com/show_oc.php?id=465080
working on 4.8 right now crashed just before a validate it

nice job fatguy on the 3.9GHz with 1.44v i had to run 1.65 for that and 1.76v for 4.1 with my Q6600

[fatguy1992]

Thanks

How do i disable cores? I want to see how high it will go on 2 cores and 1 core.

[stasio]

Official BIOS on Giga site:

GA-EP45-UD3R - F5
GA-EP45-UD3P - F6
GA-EP45-UD3LR - F4

[mark0326]

F6 has come a bit late, I was hoping we would have a F7 final (UD3P) for Christmas beings F7a has been doing the rounds for a bit now.
Thanks for posting links.

[fatguy1992]

How do I unlock extra BIOS options? I heard it was ctrl + F1. But I do that and the screen like refreashs and nothing changes?

[pangingIII]

BuGjAE and radaja,
on your posted earlier (#794/95/96), you're welcome and thanks.

[radaja]

fatguy1992,it doesnt have this feature anymore, although if you go to the page where you set the boot order,i think its called advanced something,and then do the ctrl+f1 you do see some kind of change not sure what it is but something extra get added there.

[golfjam]

i run both 4.4 & 4.5 for one hour prime (i was in a hurry, will test longer soon) and alot of benching also play FC2 for 3hrs on 4.5GHz, on 4.6 id ENABLE Load-Line Calibration because of random freezing, seem to fix it, have not run prime for more than 15min, will hopfully test it latter,
i did get to 4.7GHz
http://valid.canardpc.com/show_oc.php?id=465080
working on 4.8 right now crashed just before a validate it

nice job fatguy on the 3.9GHz with 1.44v i had to run 1.65 for that and 1.76v for 4.1 with my Q6600

Wow, congrats!!! your oc is insane!!! what bios r u using?? thx!

[fatguy1992]

fatguy1992,it doesnt have this feature anymore, although if you go to the page where you set the boot order,i think its called advanced something,and then do the ctrl+f1 you do see some kind of change not sure what it is but something extra get added there.

Ok thanks i'll try it when I have to restart.

[BuGjAE]

Ok guy I think there are something improvement with F6 here is the quick test result.

[Scog]

Hi there guys, had a ud3p for about a week now trying to push my q9550 past 4ghz. right now its stable at 465*8.5 but if i move it up to 470 I am getting system freezes after about 5 mins. The thing that confuses me is that up until it freezes there are no calculation errors in linpack/prime95/etc. Extra voltage on mch or core don't seem to help. I know my ram is good to around 1020 or so on these timings/volts.
I'm really here to ask what would cause freezing like this? What can I do to prevent it? Hopefully some of you with more experience than I will know.

These settings here are not voltage optimised but they are fairly stable from initial testing. I could probably put together a bios template tomorrow when I have the time if you think it would help.

[Sparda]

Hi there guys, had a ud3p for about a week now trying to push my q9550 past 4ghz. right now its stable at 465*8.5 but if i move it up to 470 I am getting system freezes after about 5 mins.

Try up the vtt. System freeze OR fail overclocking when restarting pc > not enough vtt. That what I observe before. -.-
500x8.5 should be easy on that Q9550 with this board.

[mykemyk2010]

Hi i just got this board with an e8400. My problem is i cant boot with all 4 ram slots used. I can only boot with 2 slots. Im pissed off because i already ordered 4x2gb g skills 8500. Is this a common problem? Any ideas?

[Kumakichi]

Hi i just got this board with an e8400. My problem is i cant boot with all 4 ram slots used. I can only boot with 2 slots. Im pissed off because i already ordered 4x2gb g skills 8500. Is this a common problem? Any ideas?

Don't think its a common problem but some people have reported having issues. Its not usually gskill ram though. Whats your voltage at?

[fatguy1992]

Hi i just got this board with an e8400. My problem is i cant boot with all 4 ram slots used. I can only boot with 2 slots. Im pissed off because i already ordered 4x2gb g skills 8500. Is this a common problem? Any ideas?

Have u tried higher MCH volts?

[mykemyk2010]

Have u tried higher MCH volts?

No i havent really touched much in the bios yet besides Correcting thre ram clocks and putting it to its ratded voltage. disabling all those downclocking options etc. I cant even use 3 sticks only 2.

[SpeedEuphoria]

You need higher MCH with more memory as well as faster FSB's. For my 2x2GB I need 1.34v for 420FSB, then more with more FSB to ~1.4v MCH

[Ghostleader]

It´s a sensetive board this EP-45-UD3P, I have a hard time get this setup stable with my E8400 C0 and 2x1 Kingston HyperX PC9600.

450 9 4050 1200 555 15 tRD7 Turbo

I can run 50 loop LinX with 57% MCH ref and it´s stable but with Orthos blend it error after ~3min and with HCI memtest error after ~100%, Run 50 loop Harbor Assault with Crysis Benchmark Tool and it was okey with 57% MCH ref.

If I try any higher MCH ref then 57% LinX error with in 10min.

I try MCH ref 60% and Orthos blend have been running for 30min and is still running.

CPU Term lower then 1,28 LinX error within 30min.

If I run MCH higher then 1,48 LinX error within 10min and lower then 1,46 error within 20min.

I have Thermalright HR-05 SLI/IFX with a 80mm fan for the HCM so heat shouldn´t be a problem.

Sometimes when I restart it even boot up it just loop in keep booting or 2 or 3 reboots then all fans on but screen is black and I have to shut it down and restart and it starts with default BIOS setup (o man, it´s so annoying , never happens with any of my Asus board).

Any suggestings?

GIGABYTE GA-EP45-UD3P BIOS F4 E8400 2x1 Kingston HyperX PC9600 1200 555 15 tRD7 Turbo

MB Intelligent Tweaker(M.I.T.) 
 
Robust Graphics Booster ..................: Auto
CPU Clock Ratio ..........................: 9 
Fine CPU Clock Ratio......................: 0 
CPU Frequency ............................: 4.05GHz (450x9)
  
Clock Chip Control  
Standard Clock Control  
CPU Host Clock Control....................: Enabled 
CPU Host Frequency (Mhz) .................: 450
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 
MCH Frequency Latch......................: 200MHz 
System Memory Multiplier ................: 2.66C
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......................: 7 

Channel B  
Channel B Timings Settings   
Static tRead Value......................: 7 
  
Motherboard Voltage Control  

Load-Line Calibration.....................: Disabled 
CPU Vcore...............1.22500V..........: 1.42500 
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............: 1.480 
MCH Reference...........0.760V............: 0,730 (57%)
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 

[pyongmu]

New guy here. Just got a UD3P and I must say I am impressed.
http://valid.canardpc.com/show_oc.php?id=466570
http://valid.canardpc.com/show_oc.php?id=466169
The best I was able to reach with the same chip using my old P35-DS3P was 3.7G and 463FSB.
Fatguy1992, thank you for sharing your settings. It was very helpful. BTW, which BIOS are you using?

[SpeedEuphoria]

It´s a sensetive board this EP-45-UD3P, I have a hard time get this setup stable with my E8400 C0 and 2x1 Kingston HyperX PC9600.

Did you Try MCH reference lower, like .64(50% according to your 1.28 VTT)-.70v(54.7%) this seems to be the range that many have success with. For me .66 is the ticket, others like .68 or .70v. These are what ET6 reports or set them w/ CPU termination set at 1.2. You can raise the VTT after that back to your 1.28

Also on the "CPU clock drive" try 800mv, then on "PCI express clock drive" try 900mv

Also you can try CPU clock skew like 200ps

[Ghostleader]

Did you Try MCH reference lower, like .64(50% according to your 1.28 VTT)-.70v(54.7%) this seems to be the range that many have success with. For me .66 is the ticket, others like .68 or .70v. These are what ET6 reports or set them w/ CPU termination set at 1.2. You can raise the VTT after that back to your 1.28

Also on the "CPU clock drive" try 800mv, then on "PCI express clock drive" try 900mv

Also you can try CPU clock skew like 200ps

Thank you

When I try MCH 50% - 55% it don´t boot and if I try with CPU clock drive try 800mv, PCI express clock drive 900mv and CPU clock skew 200ps the same.

If I run CPU, PCI clock drive at default, CPU, MCH clock skew 0ps and MCH ref 61,5% (CPU Term 1,28, MCH ref 0,79) I can run Orthos blend for 5hrs (I stopped it) and HCI memtest 1000%, seems okey but if I restart it boot back to default BIOS setup, shall try to increase CPU PLL from 1,50 to 1,57 to see if boots okey.

Do you think that tRD7 are to low for the P45 chipset, with my Rampage Formula (X48) I could run tRD6 with FSB 450 1200 CAS5.

[Barry]

Well, I got my MB back from rma lastnight.I have been playing with it some. I have my 7200 up to 3.8 and thats pretty good but i have lost me sound once it upped the clock from 3.5 to 3.8. Its a pci-e card and i have it set to 99. Has anyone ran into this? O, my dvd cant even run sound.

[Barry]

well,I'm running @ 4.0 and running prime still no sound tho