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

[MrCheese]

I didn't have any issues with F7. Or F4. F8 was horrible. Constant freezing. The F9a and F9b are great. The F9a has a new RAID BIOS (not sure why it was downgraded in the F9b). If I had to recommend one it would be the F9a. It has been the most stable and overclocks the best and the RAID BIOS boots much faster.

[Sinergie]

Yup, on cold boot it happens to me sometimes when running at 538 x 8 on my e8400 & ud3r with F7 (and F6a). It's annoying. Only away around it is to boot at a lower FSB (500) and OC within the OS. Tried various ref voltages, cpu term, vvt, etc without any luck. Changed memory (2x2GB Mushkin Redline) as well. S3 doesn't work either since F4 (i think). Bah, it's no big deal - once I OC in windows, it's still rock stable at 4.3 GHz.

The weird thing in my situation is that i'm not even overclocking only thing i've changed in the bios is setting it to raid, but it only happens with the latest bios F7 (while the flashing process succeeded succesfully).

[OC Nub]

I am still trying to get this q9650 stable at higher overclocks. Are most of you guys with this CPU using LLC? I am able to get it stable with LLC enabled but have been trying to not use it.

[radaja]

i always use LLC enabled,but thats just me

[OC Nub]

i always use LLC enabled,but thats just me

Enabled LLC and priming at 4.2ghz, seems good so far. 1.35v though, a bit high for these clocks. Don't mind pushing more into it but reaching the limits on the temps.

[Hardc0r3]

If you looked at my sig, I have 2x2gb Gskill PI PC28800's. Hoss, also had 2x2gb OCZ 1066 RAM and had the same exact issue. Using less then 1.34MCH fixed our problem, bios F7/F8 and F9B, revision 1.1 board. We also both have Q9650's, so if your dual core chip causes it to not be able to boot over 1.26MCh then I am not sure what you can do, sorry

i don't think is the cpu, cause its a great one, i think it's the motherboard which is rev. 1.0 and that's why i guess i can go only as high as 1.26v on the 333 latch. Youre ram is better than mine and maybe they are more stable with less mch volts.
Anyway some problems still are with this motherboard , why making available mch volts up to 1.6+ when u can use a max of 1.34 or 1.26 in my case. There must be some issues causing this loops after passing a certain mch lvl .

[PortCitySlim]

i don't think is the cpu, cause its a great one, i think it's the motherboard which is rev. 1.0 and that's why i guess i can go only as high as 1.26v on the 333 latch. Youre ram is better than mine and maybe they are more stable with less mch volts.
Anyway the problems still is , why making available mch volts up to 1.6+ when u can use a max of 1.34 or 1.26 in my case. There must be some issues.

The strap is broken. About 5 to 10 pages back there was some discussion about this. Jor thinks that Gigabyte will never fix it because it would just cause a different strap to be broken. In the beginning I had the same issue and you do but it was 434FSB instead of 435. You can boot at 434 and then use ET6 to adjust the FSB if you wish, it works that way.

[Leeghoofd]

hi there
what do you reckon the best 2 x 1 gig set is and cheers for the suggestion,i agree a bit pricey.

My Gskill PC8000HZ do 1280Mhz 5-5-5-12 at 2.8Vdimm if you can still find some of the good old Micron kits you are in for a treat

[Ghostleader]

i don't think is the cpu, cause its a great one, i think it's the motherboard which is rev. 1.0 and that's why i guess i can go only as high as 1.26v on the 333 latch. Youre ram is better than mine and maybe they are more stable with less mch volts.
Anyway some problems still are with this motherboard , why making available mch volts up to 1.6+ when u can use a max of 1.34 or 1.26 in my case. There must be some issues causing this loops after passing a certain mch lvl .

I have notice that sometimes when the gap between CPU Term and MCH Core are bigger the ~0,15v I can´t boot and if I bring down the gap it´s okey.

Strange thing, anyone have any comment on that one.

[mattlyall06]

so heres where i am at now. i think its so close i can smell it...

******Gigabyte EP45 UD3P******

Q9650 489 X 9 4401MHz 

Robust Graphics Booster.........................[ Auto     ] 
CPU Clock Ratio.................................[ 9        ] 
Fine CPU Clock Ratio............................[ 0        ] 
CPU Frequency 4.35GHz...........................[ 489 x 9  ]

******Clock Chip Control******

CPU Host Clock Control..........................[ Enabled  ] 
CPU Host Frequency (Mhz)........................[ 489      ] 
PCI Express Frequency (Mhz).....................[ 100      ] 
C.I.A 2 [Disabled] 

******Advanced Clock Control******

CPU Clock Drive.................................[ 1000mv   ] 
PCI Express Clock Drive.........................[ 1000mv   ] 
CPU Clock Skew..................................[ 0ps      ] 
MCH Clock Skew..................................[ 50ps     ] 

******DRAM Performance Control******

Performance Enhance [Standard] 
Extreme Memory Profile (XMP)....................[ Disabled ] 
(G) MCH Frequency Latch.........................[ 333MHz ] 
System Memory Multipler.........................[ 2.00  ] 
Memory Frequency 1066...........................[ 978  ] 
DRAM Timing Selectable..........................[ Manual ] 

CAS Latency Time................................[ 5        ] 
tRCD............................................[ 5        ] 
tRP.............................................[ 5        ] 
tRAS............................................[ 15       ] 



******Motherboard Voltage Control******

Load-Line Calibration [Enabled] 
CPU Vcore         [ 1.200   ]...................[ 1.40625 ] 
CPU Termination   [ 1.20    ]...................[ 1.34   ]
CPU PLL           [ 1.50    ]...................[ 1.570  ]
CPU Reference     [ 0.766   ]...................[ 0.888   ] 

MCH Core          [1.1      ]...................[ 1.400  ]  
MCH Reference     [0.760    ]...................[ 0.928   ] 
MCH/DRAM Refernce [0.900    ]...................[ Auto ] 
ICH I/O           [1.500    ]...................[ Auto] 
ICH Core          [1.100    ]...................[ Auto] 

DRAM Voltage      [1.800    ]...................[ 2.10  ] 
DRAM Termination  [0.900    ]...................[ Auto] 
Channel A Ref     [0.900    ]...................[ Auto] 
Channel B Ref     [0.900    ]...................[ Auto]  

******Advanced BIOS Features******

CPU Multithreading..............................[ Disabled ] 
Limit CPUID Max to 3............................[ Disabled ] 
No-Execute memory Protect.......................[ Disabled ]  
CPU Enhance Halt (CIE)..........................[ Disabled ]  
C2/C2E State Support............................[ Disabled ]  
C4/C4E State Support............................[ Disabled ] 
CPU Thermal Monitor.............................[ Disabled ] 
CPU EIST Function...............................[ Disabled ] 
Virtualization Technology.......................[ Disabled ]

i've ran memtest overnight with these settings (471% complete or something) without errors, but im running into problems with prime small fft's. is it safe to assume that not having enough vcore would cause it to crash fairly quickly? because i started with 1.3875, ran prime small fft for two hours before a crash. bumped up to 1.4, ran again but crashed at the same spot @ two hours. bumped one more notch to 1.40625, and again, crash at two hours. since i was running small fft's it cant be the mch/ram thats failing, correct? i mean, it passed memtest overnight.

what do you think? im going to bump the Vtt and cpu ref each one notch and test again.

previously, i was 10 hours prime blend stable with 480*9 w/ 1.3875vcore bios @ those same settings.

[PortCitySlim]

so heres where i am at now. i think its so close i can smell it...

******Gigabyte EP45 UD3P******

Q9650 489 X 9 4401MHz 

Robust Graphics Booster.........................[ Auto     ] 
CPU Clock Ratio.................................[ 9        ] 
Fine CPU Clock Ratio............................[ 0        ] 
CPU Frequency 4.35GHz...........................[ 489 x 9  ]

******Clock Chip Control******

CPU Host Clock Control..........................[ Enabled  ] 
CPU Host Frequency (Mhz)........................[ 489      ] 
PCI Express Frequency (Mhz).....................[ 100      ] 
C.I.A 2 [Disabled] 

******Advanced Clock Control******

CPU Clock Drive.................................[ 1000mv   ] 
PCI Express Clock Drive.........................[ 1000mv   ] 
CPU Clock Skew..................................[ 0ps      ] 
MCH Clock Skew..................................[ 50ps     ] 

******DRAM Performance Control******

Performance Enhance [Standard] 
Extreme Memory Profile (XMP)....................[ Disabled ] 
(G) MCH Frequency Latch.........................[ 333MHz ] 400mhz
System Memory Multipler.........................[ 2.00  ] 2.0D
Memory Frequency 1066...........................[ 978  ] 
DRAM Timing Selectable..........................[ Manual ] 

CAS Latency Time................................[ 5        ] 
tRCD............................................[ 5        ] 
tRP.............................................[ 5        ] 
tRAS............................................[ 15       ] 



******Motherboard Voltage Control******

Load-Line Calibration [Enabled] 
CPU Vcore         [ 1.200   ]...................[ 1.40625 ] 1.4125
CPU Termination   [ 1.20    ]...................[ 1.34   ] 
CPU PLL           [ 1.50    ]...................[ 1.570  ]
CPU Reference     [ 0.766   ]...................[ 0.888   ] 

MCH Core          [1.1      ]...................[ 1.400  ]  1.34
MCH Reference     [0.760    ]...................[ 0.928   ] 66-67%
MCH/DRAM Refernce [0.900    ]...................[ Auto ] 1.050
ICH I/O           [1.500    ]...................[ Auto] 1.500
ICH Core          [1.100    ]...................[ Auto]  1.100

DRAM Voltage      [1.800    ]...................[ 2.10  ] 
DRAM Termination  [0.900    ]...................[ Auto] 1.050
Channel A Ref     [0.900    ]...................[ Auto] 1.050
Channel B Ref     [0.900    ]...................[ Auto]  1.050

******Advanced BIOS Features******

CPU Multithreading..............................[ Disabled ] 
Limit CPUID Max to 3............................[ Disabled ] 
No-Execute memory Protect.......................[ Disabled ]  
CPU Enhance Halt (CIE)..........................[ Disabled ]  
C2/C2E State Support............................[ Disabled ]  
C4/C4E State Support............................[ Disabled ] 
CPU Thermal Monitor.............................[ Disabled ] 
CPU EIST Function...............................[ Disabled ] 
Virtualization Technology.......................[ Disabled ]

i've ran memtest overnight with these settings (471% complete or something) without errors, but im running into problems with prime small fft's. is it safe to assume that not having enough vcore would cause it to crash fairly quickly? because i started with 1.3875, ran prime small fft for two hours before a crash. bumped up to 1.4, ran again but crashed at the same spot @ two hours. bumped one more notch to 1.40625, and again, crash at two hours. since i was running small fft's it cant be the mch/ram thats failing, correct? i mean, it passed memtest overnight.

what do you think? im going to bump the Vtt and cpu ref each one notch and test again.

previously, i was 10 hours prime blend stable with 480*9 w/ 1.3875vcore bios @ those same settings.

You are pushing to much MCH, your VTT might be a notch or so too high. My guess is that your failing prime because of the VCORE. Also, I have heard that the 2.0D(400mhz) latch is much better then the 2.0B(333). I am running the 476FSB at 1.30VTT/1.30MCH, Hoss runs 482 with 1.28VTT/1.30MCH. Try getting rid of those auto voltages too, I put what I think you should try in bold.

Edit: I just want to add, that I had the exact same issue with Prime crashing after two hours exactly. With the blend it was crashing at the 16k-20K section everytime. I reluctantly had to raise my vcore. I can actually run 9x473FSB at 3 notches lower vcore then I am at right now, with my chip going over 9x473FSB starts the vcore on a huge upwards tumble. 9x480-485FSB might be your sweetspot.

[ceemic]

What are the biggest differences between rev1.0 and rev1.1 on EP45-UD3P? How about OC potential?

[ninjaskija]

wich is the best (stable) strap for 500 over fsb?

[Shiranui Gen-An]

wich is the best (stable) strap for 500 over fsb?

I'd say 333 strap. On an unrelated note, it seems the UD3P by default uses very loose subtimings on the RAM to achieve the high clocks...

[OC Nub]

What are the biggest differences between rev1.0 and rev1.1 on EP45-UD3P? How about OC potential?

They should both OC the same. The rev1.0 does seem to be less quirky, that may be CPU related and not the board. The NB on the 1.1 hardly gets warm to the touch which makes me wonder if it is making good contact. This 1.0 NB gets very warm without a fan on it. The 1.1 NB HS is turned upside down.

[cholo777]

hi lads
just wanted to ask if anyone has managed to go 500 fsb+ with an e8600 as i am struggling to get past 440, thank god i have 10x multiplier but i have seen go beyong 500+
would be interested to know what your settings in the bios are,appreciate any help with this.
regs
paul

[sdgserv]

hi lads
just wanted to ask if anyone has managed to go 500 fsb+ with an e8600 as i am struggling to get past 440, thank god i have 10x multiplier but i have seen go beyong 500+
would be interested to know what your settings in the bios are,appreciate any help with this.
regs
paul

Yep..I have the e8600 with OCZ Reaper..Trick was to use 200FSB..Volt was 3.0
Air cooled. drop the cpu X

[xEnergie]

Hi, recently I've just purchased the EP45-UD3R along with a Q9950. I was looking through the bios and the memory settings are really confusing to me. Can someone explain the memory dividers to me please.



(G) MCH Frequency Latch.........................[ ???MHz ] <-- not sure this setting
System Memory Multipler.........................[ ??? ] <-- not sure this setting

[adpr_02]

Hey, this doesn't have to do with overclocking:

If I want to raid, what would be better to use on this mobo? The Gigabite sata connectors (purple) or the south bridge sata connectors (orange)?

Does anybody know the difference between these two types of sata ports?

[Leeghoofd]

hi lads
just wanted to ask if anyone has managed to go 500 fsb+ with an e8600 as i am struggling to get past 440, thank god i have 10x multiplier but i have seen go beyong 500+
would be interested to know what your settings in the bios are,appreciate any help with this.
regs
paul

Have you disabled all this :

******Advanced BIOS Features******

CPU Multithreading..............................[ Disabled ]
Limit CPUID Max to 3............................[ Disabled ]
No-Execute memory Protect.......................[ Disabled ]
CPU Enhance Halt (CIE)..........................[ Disabled ]
C2/C2E State Support............................[ Disabled ]
C4/C4E State Support............................[ Disabled ]
CPU Thermal Monitor.............................[ Disabled ]
CPU EIST Function...............................[ Disabled ]
Virtualization Technology.......................[ Disabled ]

Yep..I have the e8600 with OCZ Reaper..Trick was to use 200FSB..Volt was 3.0
Air cooled. drop the cpu X

3.0 volt ? nice tip :p

[XpuctoC.]

Hey, this doesn't have to do with overclocking:

If I want to raid, what would be better to use on this mobo? The Gigabite sata connectors (purple) or the south bridge sata connectors (orange)?

Does anybody know the difference between these two types of sata ports?

Yelow ones are connected to the intel ICH10R controller, the purple to the JMicron. Better use the yellow - you will have better bandwith, moreover the JMicron chip gets too hot and needs passive cooloing.

[Lsdmeasap]

Hi, recently I've just purchased the EP45-UD3R along with a Q9950. I was looking through the bios and the memory settings are really confusing to me. Can someone explain the memory dividers to me please.



(G) MCH Frequency Latch.........................[ ???MHz ] <-- not sure this setting
System Memory Multipler.........................[ ??? ] <-- not sure this setting

You can set MCH Latch to Auto and choose from all the available Memory multipliers for all straps, or Set to one strap close to or above your FSB and use only those Multipliers.

You can of course use lower then FSB Strap, and it will be better but much harder to keep stable

Each Strap has a pre-defined set of Memory Multipliers for it. Here are what those are for each >>

[cholo777]

[QUOTE=Leeghoofd;3729193]Have you disabled all this :

******Advanced BIOS Features******

CPU Multithreading..............................[ Disabled ]
Limit CPUID Max to 3............................[ Disabled ]
No-Execute memory Protect.......................[ Disabled ]
CPU Enhance Halt (CIE)..........................[ Disabled ]
C2/C2E State Support............................[ Disabled ]
C4/C4E State Support............................[ Disabled ]
CPU Thermal Monitor.............................[ Disabled ]
CPU EIST Function...............................[ Disabled ]
Virtualization Technology.......................[ Disabled ]

hi
yes all of these are disabled,apart from no-execute memory protect,quite strange as i have lowered he multiplier to 8x and tried 500fsb and it will not boot,even relaxed the ram timings abd run that slower to see if it make a difference,hots a wall literally,must be something silly

dont quite follow what that guy above recommended - 200fsb and volt 3,0 makes no sense to me.
regs
paul

[cholo777]

Yep..I have the e8600 with OCZ Reaper..Trick was to use 200FSB..Volt was 3.0
Air cooled. drop the cpu X

m8 i dont quite follow what you are suggesting, you talking about the 200 strap and whats the 3.0 volt. can you explain in detail,many thanks
regs
paul

[Leeghoofd]

hi
yes all of these are disabled,apart from no-execute memory protect,quite strange as i have lowered he multiplier to 8x and tried 500fsb and it will not boot,even relaxed the ram timings abd run that slower to see if it make a difference,hots a wall literally,must be something silly

Do you set the pl manually ? try filling in a template where you are at now mate