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

[fatguy1992]

I'v done more tests and my E8500 likes 67% GTL references better then 63% (stock)

This was the difference between BSOD on 4.2GHz and it working



Any input would be liked?

Edit: I know I only should only use 1.2v mch or less, but I forgot to change it

[Leeghoofd]

Hi guys, im thinking of getting a GA-EP45T-UD3R pretty soon. I have some questions

1. Are there any problems with the DDR3 version of the board?
2. What are the differences between revision 1.0 and 1.1?

If i have any more questions i will ask

Cheers,
Oz

With Bios F5 things seem to be more stable mate, previous biosses were not that good. There are still some strap issues ( but most P45 DDR3 boards have those ) Sadly my Corsairs don't clock that good 1720mhz is the max...so I couldn't check the 1800mhz speeds...



I compared it with some results of the Asus P5Q3 and the GB surpasses it easily now on setup and ram bandwith

Take note that this is a poor E7400 and it already bests some peeps scores with highly tweaked DDR2 (and better cpu's)



I too saw the 1.1 version posted on the GB webbie, but have no clue what they have changed...

More tests and results here :

Gigabyte EP45T-UD3P REVIEW

More testing will be done once my PC16000 rams and E8600 ship...

[fatguy1992]

Whats the best BIOS version for overclocking a E8500?

Also, my mobo is a rev A3, but i looked on the Gigabyte website and there was only 1.0 and 1.1. So which one is mine

Thanks

[radaja]

fatguy1992,thanks.A3 is the chipset revision number. 1.0 and 1.1 are board revision numbers.your board revision number should be located on the board itself.

[[timko]]

Whats the best BIOS version for overclocking a E8500?

Also, my mobo is a rev A3, but i looked on the Gigabyte website and there was only 1.0 and 1.1. So which one is mine

Thanks

I'm guessing you're getting the "A3" bit from looking at the "Mainboard" tab in CPUz. Look in the field above it next to the model name, it might have it there. If it doesn't then you'll have to look at the motherboard itself. It's located just above the second PCI-Ex slot right on the edge in the corner, before where it says "Made in China"

[Oztopher]

Ok, thanks guys

Only thing is, i'm getting the UD3R version of the board, which is only the on the F4 BIOS. But looking at the description (which isn't alot) It's the same as the F5 for the UD3P... Hmmm, either way i'll get the UD3R, hoping they'll come out with better BIOS'es in the near future.

My only guess to why they're bringing out BIOS'es faster for the UD3P, is 'cos they know it's more popular?

Cheers,
Oz

EDIT: oh, and i'm gona have a PC3-12800 CAS7 OCZ kit, hopefully i'll be able to run 1800 with CAS8 :S

[[timko]]

1.2 - stock Vtt
x - current Vtt
y - MCH ref shown in ET
z - MCH ref real (the one in BIOS)

z=x*y/1.2

I could be wrong, but that's consistent with the screenshots.

I agree with this. Having just finished tweaking an overclock by changing the CPU and MCH ref values in ET6, I then went back into the BIOS and tried the nearest values as I set in ET6. Result was I ended getting boot loop and had to jumper CLR_CMOS to get out of it.

Using the formula shown by Touche above I was able to determine what I actually should be setting in the BIOS to achieve the same shown setting in ET6.



Example, tweaking in ET6 I find that I need 0.80 MCH reference in ET6 to remain stable with a CPU Termination (Gigabyte's term for VTT) of 1.4v. Put those numbers into the formula...

MCH ref value to set in BIOS = 1.4 x 0.80 / 1.2 = 0.933 to 3 decimal places.

I go into the BIOS and select the nearest value for the MCH ref and use the setting 0.926 (next setting up was 0.966 so that would be too high).

I then boot back into Windows, load up ET6 and MCH ref shows 0.80 as expected

Thanks for bringing the formula up Touche, it's saved me a lot of headache now that I can set ref values for both the CPU and MCH without getting infinite boot loop. It also means I don't need to load up ET6 and manually set the values each time either so have some on me

[Touche]

I'v done more tests and my E8500 likes 67% GTL references better then 63% (stock)

Is it IBT stable now?

How come you lowered ICH I/O?

Edit: I know I only should only use 1.2v mch or less, but I forgot to change it

Why only 1.2?

With Bios F5 things seem to be more stable mate, previous biosses were not that good. There are still some strap issues ( but most P45 DDR3 boards have those ) Sadly my Corsairs don't clock that good 1720mhz is the max...so I couldn't check the 1800mhz speeds...

Nice table

Could you post your BIOS template for that e7400?

Thanks for bringing the formula up Touche, it's saved me a lot of headache now that I can set ref values for both the CPU and MCH without getting infinite boot loop. It also means I don't need to load up ET6 and manually set the values each time either so have some on me

Great, glad to see it was correct and helpful

[ezaleina]

This is my 1st OC with my new chips.,still with C1 stepping.,just want to make sure is this setting suitable for 24/7 use.,but not very stable setting sometimes random BSOD..do i need to change anything guys..?

[radaja]

ezaleina,very nice w/low volts.damn i got to try and lower these volts of mine.i am so jealous.keep up the great work

[ezaleina]

ezaleina,very nice w/low volts.damn i got to try and lower these volts of mine.i am so jealous.keep up the great work

tq bro radaja.,but do u think it suitable for 24/7 use..?

[Touche]

tq bro radaja.,but do u think it suitable for 24/7 use..?

It's not if you get BSODs Try changing some volts and see if you can get it stable. Use IBT for quick testing.

[ezaleina]

It's not if you get BSODs Try changing some volts and see if you can get it stable. Use IBT for quick testing.

yeah b4 this i got BSOD.,but after i pump to 1.35vcore.,its ok.,its only happen when i try to load Windows 7.,but its ok with windows XP..

[Touche]

Aha...those volts are more than fine for 24/7.

[Ghostleader]

Here´s my Q9650@500 4,0GHz and 2x2 OCZ Reaper PC8500@1000 555 15 tRD10.

It´s stable with 50 loop LinX (~2hrs, max problem size and max memory use), 2hrs dual P95 blend and ~2hrs Crysis game play. All test done with Windows 7 beta 64bit DX10.

Voltage setup is good for 24/7.

B Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto 
CPU Clock Ratio .......................: 8
CPU Frequency .........................: 4.0GHz (500X8)

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........................: Default
PCI Express Clock Drive................: Default
CPU Clock Skew (ps)....................: 0ps 
MCH Clock Skew (ps)....................: 50ps 

DRAM Performance Control

Performance Enhance....................: Turbo
Extreme Memory Profile (X.M.P.)........: Disabled 
(G)MCH Frequency Latch.................: 400MHz 
System Memory Multiplier ..............: 2.00D 
Memory Frequency (Mhz) ................: 1000MHz

Standard Timing Control

CAS Latency Time.......................: 5 
tRCD ..................................: 5 
tRP'...................................: 5 
tRAS...................................: 15 

Advanced Timing Control

Everything In Advanced Timing Control on auto.  

Motherboard Voltage Control

CPU

Load-Line Calibration..................: [Enabled] 
CPU Vcore..............................: 1.3875
CPU Termination........................: 1.30
CPU PLL................................: 1.57
CPU Reference..........................: 0.760 (ET6) 

MCH/ICH

MCH Core...............................: 1.34
Reference..............................: 0.840 (ET6)
MCH/DRAM Ref...........................: Normal
ICH I/O................................: Normal
ICH Core...............................: Normal 

DRAM
DRAM Voltage...........................: 2.10
DRAM Termination ......................: Normal 
Channel A Reference....................: Normal
Channel B Reference ...................: Normal

[fatguy1992]

fatguy1992,thanks.A3 is the chipset revision number. 1.0 and 1.1 are board revision numbers.your board revision number should be located on the board itself.

I'm guessing you're getting the "A3" bit from looking at the "Mainboard" tab in CPUz. Look in the field above it next to the model name, it might have it there. If it doesn't then you'll have to look at the motherboard itself. It's located just above the second PCI-Ex slot right on the edge in the corner, before where it says "Made in China"

Thanks guys

I found it on my mobo and its a rev 1.0

[Leeghoofd]

Could you post your BIOS template for that e7400?

Sure mate :

Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto 
CPU Clock Ratio .......................: 8
CPU Frequency .........................: 4.0GHz (500X8)

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........................: 700
PCI Express Clock Drive................: 700
CPU Clock Skew (ps)....................: 100ps 
MCH Clock Skew (ps)....................: 50ps 

DRAM Performance Control

Performance Enhance....................: Turbo
Extreme Memory Profile (X.M.P.)........: Disabled 
(G)MCH Frequency Latch.................: AUTO 
System Memory Multiplier ..............: 3.20B 
Memory Frequency (Mhz) ................: 1600MHz

Standard Timing Control

CAS Latency Time.......................: 8
tRCD ..................................: 8 
tRP'...................................: 8 
tRAS...................................: 24 

Advanced Timing Control

Everything In Advanced Timing Control on auto besides PL at 8

Motherboard Voltage Control

CPU

Load-Line Calibration..................: [Enabled] 
CPU Vcore..............................: 1.33125
CPU Termination........................: 1.24
CPU PLL................................: 1.50
CPU Reference..........................: 0.785 

MCH/ICH

MCH Core...............................: 1.34
Reference..............................: 0.745
MCH/DRAM Ref...........................: 0.860
ICH I/O................................: 1.5
ICH Core...............................: 1.1

DRAM
DRAM Voltage...........................: 1.720
DRAM Termination ......................: 0.860
Channel A Reference....................: 0.860
Channel B Reference ...................: 0.860 

CPU has a FSB wall at 540FSB, rig posts ( till 560FSB) but after the bios, all goes black lol Tried it on the the Asus mobo same story... but not a bad CPU for 100 euro's...

[fatguy1992]

Could someone please tell me whats wrong with these settings? I'm not looking for it to be stable, but able to run some benchmarks.

Robust Graphics Booster ...............: Auto 
CPU Clock Ratio .......................: 9.5
CPU Frequency .........................: 4.5GHz (475X9.5)

Clock Chip Control 

Standard Clock Control

CPU Host Clock Control.................: [Enabled] 
CPU Host Frequency (Mhz) ..............: 475 
PCI Express Frequency (Mhz) ...........: 100 
C.I.A.2 ...............................: [Disabled] 

Advanced Clock Control

CPU Clock Drive........................: Default
PCI Express Clock Drive................: Default
CPU Clock Skew (ps)....................: 0ps 
MCH Clock Skew (ps)....................: 0ps 

DRAM Performance Control

Performance Enhance....................: Turbo
Extreme Memory Profile (X.M.P.)........: Disabled 
(G)MCH Frequency Latch.................: 400MHz 
System Memory Multiplier ..............: 2.00D 
Memory Frequency (Mhz) ................: 950MHz

Standard Timing Control

CAS Latency Time.......................: 5 
tRCD ..................................: 5 
tRP'...................................: 5 
tRAS...................................: 15 

Advanced Timing Control

Everything In Advanced Timing Control on auto.  

Motherboard Voltage Control

CPU

Load-Line Calibration..................: [Enabled] 
CPU Vcore..............................: 1.525v
CPU Termination........................: 1.30v
CPU PLL................................: 1.57v
CPU Reference..........................: 0.823 or 0.863 

MCH/ICH

MCH Core...............................: 1.3
Reference..............................: 0.823 or 0.863
MCH/DRAM Ref...........................: 1
ICH I/O................................: 1.5
ICH Core...............................: 1.1 

DRAM
DRAM Voltage...........................: 2.0
DRAM Termination ......................: 1 
Channel A Reference....................: 1
Channel B Reference ...................: 1

I'v never used a dual before, so i'm having trouble getting it work. BTW my BIOS is F4.

[Ghostleader]

Could someone please tell me whats wrong with these settings? I'm not looking for it to be stable, but able to run some benchmarks.

I'v never used a dual before, so i'm having trouble getting it work. BTW my BIOS is F4.

If you run 2Gb ram try to set CPU PLL 1,50, CPU Term 1,20-1,26, CPU ref 0,760 (when CPU Term are 1,20) MCH core 1,20-1,24, MCH ref 0,700-0,720 (when CPU Term are 1,20). You should be able to reach FSB 500+ and ram 1:1 with that.

Can also try MCH Clock Skew 50ps.

[fatguy1992]

Its working so far

I don't think its stable.

BTW I forgot to say i have a C0 E8500.

[Touche]

Sure mate :

Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto 
CPU Clock Ratio .......................: 8
CPU Frequency .........................: 4.0GHz (500X8)

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........................: 700
PCI Express Clock Drive................: 700
CPU Clock Skew (ps)....................: 100ps 
MCH Clock Skew (ps)....................: 50ps 

DRAM Performance Control

Performance Enhance....................: Turbo
Extreme Memory Profile (X.M.P.)........: Disabled 
(G)MCH Frequency Latch.................: AUTO 
System Memory Multiplier ..............: 3.20B 
Memory Frequency (Mhz) ................: 1600MHz

Standard Timing Control

CAS Latency Time.......................: 8
tRCD ..................................: 8 
tRP'...................................: 8 
tRAS...................................: 24 

Advanced Timing Control

Everything In Advanced Timing Control on auto besides PL at 8

Motherboard Voltage Control

CPU

Load-Line Calibration..................: [Enabled] 
CPU Vcore..............................: 1.33125
CPU Termination........................: 1.24
CPU PLL................................: 1.50
CPU Reference..........................: 0.785 

MCH/ICH

MCH Core...............................: 1.34
Reference..............................: 0.745
MCH/DRAM Ref...........................: 0.860
ICH I/O................................: 1.5
ICH Core...............................: 1.1

DRAM
DRAM Voltage...........................: 1.720
DRAM Termination ......................: 0.860
Channel A Reference....................: 0.860
Channel B Reference ...................: 0.860 

CPU has a FSB wall at 540FSB, rig posts ( till 560FSB) but after the bios, all goes black lol Tried it on the the Asus mobo same story... but not a bad CPU for 100 euro's...

It's official, my e7300 is a dud I just can't get it IBT stable at 4 GHz. I've tried vcore up to 1.45625v but still no success. I'll have to settle with 3.75 GHz.

Could someone please tell me whats wrong with these settings? I'm not looking for it to be stable, but able to run some benchmarks.

Robust Graphics Booster ...............: Auto 
CPU Clock Ratio .......................: 9.5
CPU Frequency .........................: 4.5GHz (475X9.5)

Clock Chip Control 

Standard Clock Control

CPU Host Clock Control.................: [Enabled] 
CPU Host Frequency (Mhz) ..............: 475 
PCI Express Frequency (Mhz) ...........: 100 
C.I.A.2 ...............................: [Disabled] 

Advanced Clock Control

CPU Clock Drive........................: Default
PCI Express Clock Drive................: Default
CPU Clock Skew (ps)....................: 0ps 
MCH Clock Skew (ps)....................: 0ps 

DRAM Performance Control

Performance Enhance....................: Turbo
Extreme Memory Profile (X.M.P.)........: Disabled 
(G)MCH Frequency Latch.................: 400MHz 
System Memory Multiplier ..............: 2.00D 
Memory Frequency (Mhz) ................: 950MHz

Standard Timing Control

CAS Latency Time.......................: 5 
tRCD ..................................: 5 
tRP'...................................: 5 
tRAS...................................: 15 

Advanced Timing Control

Everything In Advanced Timing Control on auto.  

Motherboard Voltage Control

CPU

Load-Line Calibration..................: [Enabled] 
CPU Vcore..............................: 1.525v
CPU Termination........................: 1.30v
CPU PLL................................: 1.57v
CPU Reference..........................: 0.823 or 0.863 

MCH/ICH

MCH Core...............................: 1.3
Reference..............................: 0.823 or 0.863
MCH/DRAM Ref...........................: 1
ICH I/O................................: 1.5
ICH Core...............................: 1.1 

DRAM
DRAM Voltage...........................: 2.0
DRAM Termination ......................: 1 
Channel A Reference....................: 1
Channel B Reference ...................: 1

I'v never used a dual before, so i'm having trouble getting it work. BTW my BIOS is F4.

Try lower MCH ref with those settings and 1.26 MCH.

[Leeghoofd]

It's official, my e7300 is a dud I just can't get it IBT stable at 4 GHz. I've tried vcore up to 1.45625v but still no success. I'll have to settle with 3.75 GHz.

I don't run IBT on this CPU, it's far too hot ( already in the 60°C with just prime ) IBT is nice for a few runs, but people exagerate and hardware will fail in due time to just get a lousy screenshot that it is/was stable

Look here one of the victims ( the programmer himself ), now we need to find out what has happened ( TIM or Core/IHS issue)

IBT is NOT GOOD FOR YA HARDWARE

[radaja]

well i dont know if its my new power supply or if i was just rushing when i first started trying to clock my 9650 but now i am able to lower these volts even more.so either way i am happy.

[Touche]

I don't run IBT on this CPU, it's far too hot ( already in the 60°C with just prime ) IBT is nice for a few runs, but people exagerate and hardware will fail in due time to just get a lousy screenshot that it is/was stable

IBT is good for a quick stability test. I don't want to Prime for hours every time I change a setting. Couple of minutes for 10 run IBT and if it passes that I can leave it overnight priming. I've saved days this way.

Look here one of the victims ( the programmer himself ), now we need to find out what has happened ( TIM or Core/IHS issue)

IBT is NOT GOOD FOR YA HARDWARE

Why do you think his problem is IBT related? Isn't Core architecture quite resistant to abuse, throttling when needed and such?

[clo007]

Ok, thanks guys

Only thing is, i'm getting the UD3R version of the board, which is only the on the F4 BIOS. But looking at the description (which isn't alot) It's the same as the F5 for the UD3P... Hmmm, either way i'll get the UD3R, hoping they'll come out with better BIOS'es in the near future.

My only guess to why they're bringing out BIOS'es faster for the UD3P, is 'cos they know it's more popular?

Cheers,
Oz

EDIT: oh, and i'm gona have a PC3-12800 CAS7 OCZ kit, hopefully i'll be able to run 1800 with CAS8 :S

Actually the latest bios is f6 for the UD3R