P45 UD3P - Large RAM Problem

[Max25]

Hallo,

first sorry for my bad english.
I have an large Problem with my P45 UD3P and the Corsair Dominator 2x2048MB DDR 1066 5/5/5/15, the CPU is a Q9550 E0.

When i set everything to DEFAULT (FSB333x8,5, DDR1066) i can boot and everything is fine. Even DDR 1080 is no Problem.

But when i raise the MCH-Core Voltage over 1,2V the Board loop in Reboots. I must turn down FSB to 325 (DDR 1040), then i can boot.

I need higher MCH-Core Voltage then 1,2V for my Quad at higher FSB, but then i cant run DDR 1066or higher!
(For Example FSB 445 and 2.4B=1066 -> not possible over 1,2V MCH
FSB 433 and 2.4B=1040 -> possible with 1,2-1,4V)


What is the Problem, is the Board damaged or the RAM incompatible?

Bios is F7, i tried everything, even lower Timings, but this could not be the Reason, because the Board boots DDR 1066 or even higher with MCH<1,2V, but when i set MCH>1,2V, there is no way.


Please help me,

Thanks

[Max25]

Re: P45 UD3P - Large RAM Problem

No on an idea?
Can somebody with 2x2048MB DDR 1066 test if booting is possible with MCH 1,3V?

[heavyengineering]

Re: P45 UD3P - Large RAM Problem

I've got similar hardware as you, no overclock on my q9550 and have gone as high as 1.24V MCH Core with 1066 DDR2 with nothing but reboot loops.

[Max25]

Re: P45 UD3P - Large RAM Problem

It means you have the same Problem, over 1,24MCH Voltage you got Reboot-Loops?
What Memory you use?

[powergiga]

Re: P45 UD3P - Large RAM Problem

Hallo,

first sorry for my bad english.
I have an large Problem with my P45 UD3P and the Corsair Dominator 2x2048MB DDR 1066 5/5/5/15, the CPU is a Q9550 E0.

When i set everything to DEFAULT (FSB333x8,5, DDR1066) i can boot and everything is fine. Even DDR 1080 is no Problem.

But when i raise the MCH-Core Voltage over 1,2V the Board loop in Reboots. I must turn down FSB to 325 (DDR 1040), then i can boot.

I need higher MCH-Core Voltage then 1,2V for my Quad at higher FSB, but then i cant run DDR 1066or higher!
(For Example FSB 445 and 2.4B=1066 -> not possible over 1,2V MCH
FSB 433 and 2.4B=1040 -> possible with 1,2-1,4V)


What is the Problem, is the Board damaged or the RAM incompatible?

Bios is F7, i tried everything, even lower Timings, but this could not be the Reason, because the Board boots DDR 1066 or even higher with MCH<1,2V, but when i set MCH>1,2V, there is no way.


Please help me,

Thanks

Could be ram incompatible ?, That brand Corsair Dominator might be picky on your UD3P, try use different brand for 2x2GB pop in and see what happen.

Go for G.Skill

pg

[Max25]

Re: P45 UD3P - Large RAM Problem

The Memory is offical supported:

http://www.gigabyte.com.tw/FileList/MemorySupport/motherboard_memory_ga-ep45-ud3p.pdf

I have no other modules for testing, but i think, its a general problem, Gigabyte has massive problems running 2x2048MB DDR 1066 stable on the UD3P.

With my P35DS4 i can run the memory with DDR 1100 on every possible MCH-Voltage.

[powergiga]

Re: P45 UD3P - Large RAM Problem

The Memory is offical supported:

http://www.gigabyte.com.tw/FileList/MemorySupport/motherboard_memory_ga-ep45-ud3p.pdf

I have no other modules for testing, but i think, its a general problem, Gigabyte has massive problems running 2x2048MB DDR 1066 stable on the UD3P.

With my P35DS4 i can run the memory with DDR 1100 on every possible MCH-Voltage.

Try use updated beta F8a link at http://forums.tweaktown.com/f69/giga...st-bios-28441/ if problem go away ?

pg

[bius]

Re: P45 UD3P - Large RAM Problem

post you complete settings.

[Max25]

Re: P45 UD3P - Large RAM Problem

Here a template, with default FSB:


BIOS Setting
MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: [Auto]
CPU Clock Ratio .......................: 8,0
Fine CPU Clock Ratio...................: +0.5
CPU Frequency .........................: 2.83GHz (333X8)

Clock Chip Control
Standard Clock Control
CPU Host Clock Control.................: [DISABLED]
CPU Host Frequency (Mhz) ..............: 333
PCI Express Frequency (Mhz) ...........: 100
C.I.A.2 ...............................: [Disabled]


Advanced Clock Control [Press Enter]
CPU Clock Drive........................: 800mV
PCI Express Clock Drive................: 900mV
CPU Clock Skew (ps)....................: 0ps
MCH Clock Skew (ps)....................: 0ps


DRAM Performance Control
Performance Enhance....................: [STANDARD]
Extreme Memory Profile (X.M.P.)........: [Disabled]
(G)MCH Frequency Latch.................: [AUTO]
System Memory Multiplier ..............: [AUTO=3.2B]
Memory Frequency (Mhz) ................: 1066
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time.......................: 5
tRCD ..................................: 5
tRP'...................................: 5
tRAS...................................: 15

Advanced Timing Control -> everything on AUTO


Channel A
Static tRead Value.....................: 10
tRD Phase0 Adjustment..................: 0 [AUTO]
tRD Phase1 Adjustment..................: 0 [AUTO]
tRD Phase2 Adjustment .................: 0 [AUTO]
tRD Phase3 Adjustment..................: 0 [AUTO]
Trd2rd(Different Rank).................: 8 [AUTO]
Twr2wr(Different Rank).................: 8 [AUTO]
Twr2rd(Different Rank).................: 7 [AUTO]
Trd2wr(Same/Diff Rank).................: 9 [AUTO]
Dimm1 Clock Skew Control...............: [AUTO]
Dimm2 Clock Skew Control...............: [AUTO]
DDR Write Training.....................: [AUTO]

Channel B
Static tRead Value.....................: 10
tRD Phase0 Adjustment..................: 0 [AUTO]
tRD Phase1 Adjustment..................: 0 [AUTO]
tRD Phase2 Adjustment .................: 0 [AUTO]
tRD Phase3 Adjustment..................: 0 [AUTO]
Trd2rd(Different Rank).................: 8 [AUTO]
Twr2wr(Different Rank).................: 8 [AUTO]
Twr2rd(Different Rank).................: 7 [AUTO]
Trd2wr(Same/Diff Rank).................: 9 [AUTO]
Dimm1 Clock Skew Control...............: [AUTO]
Dimm2 Clock Skew Control...............: [AUTO]
DDR Write Training.....................: [AUTO]


Motherboard Voltage Control
CPU
Load-Line Calibration..................: [Disabled]
CPU Vcore...................1.250v : Auto
CPU Termination...........1.200v: Auto
CPU PLL.......................1.500v: Auto
CPU Reference.............0.760v: [Auto]


MCH/ICH
MCH Core.....................1.100v: 1,2->Boot, no problem, 1,3-> Bootloop / NoBoot
MCH Reference............0.760v.: [AUTO]
MCH/DRAM Ref..........0.900v.: [AUTO]
ICH I/O........................1.500v: [AUTO]
ICH Core......................1.100v: [AUTO]

DRAM
DRAM Voltage...................1.800v.: 2.14v
DRAM Termination ......................: 0.900V [AUTO]
Channel A Reference....................: 0.900V [AUTO]
Channel B Reference ...................: 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..............: [Enabled]

Something very interessting:

FSB 333 - 3.2B DDR 1066 - MCH 1,2V -> RUN
FSB 338 - 3.2B DDR 1080 - MCH 1,2V ->RUN
FSB 333 - 3.2B DDR 1066 - MCH 1,22V and higher- Bootloop
FSB 325 - 3.2B DDR 1042 - MCH 1,3V -> RUN
FSB 326 - 3.2B DDR 1044 - MCH 1,3V -> Bootloop

The same with 2.4B:

FSB 445 - 2.4B DDR 1066- MCH 1,3 -> Bootloop
FSB 433 - 2.4B DDR 1042 - MCH 1,3V -> RUN
FSB 434 - 2.4B DDR 1044 - MCH 1,3V -> Bootloop

[powergiga]

Re: P45 UD3P - Large RAM Problem

@ Max25,

Read this ram comptiable ram works with UP3P by review at Egg link at

Customer Reviews Of mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory - Retail

I am not saying you should buy it but get idea about reviews reports that brand works with UP3P right off the bat.

pg

[Jor3llBR]

Re: P45 UD3P - Large RAM Problem

Same problem with G.Skill's Pi 9600 4Gb kit...

Run 2 x 2Gb MCH voltage cannot be raised on 2:40 strap until a certain level.... 2 x 1Gb or 4 x 1Gb and you can use the strap and mch voltage you want!

[Max25]

Re: P45 UD3P - Large RAM Problem

Read this ram comptiable ram works with UP3P by review at Egg link at

Customer Reviews Of mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory - Retail

I am not saying you should buy it but get idea about reviews reports that brand works with UP3P right off the bat.

I read, that they are running DDR1066 or more, but nothing about the MCH-Voltage?
Can you show me the post?

[profJim]

Re: P45 UD3P - Large RAM Problem

No on an idea?
Can somebody with 2x2048MB DDR 1066 test if booting is possible with MCH 1,3V?

With my setup (see signature), MCH voltage settings are NOT a problem when using the 2.00(B) strap. I've gone as high as 1.32 volts, but my best results are with MCH set at 1.22 - 1.26 volts.

Same problem with G.Skill's Pi 9600 4Gb kit...

Run 2 x 2Gb MCH voltage cannot be raised on 2:40 strap until a certain level.... 2 x 1Gb or 4 x 1Gb and you can use the strap and mch voltage you want!

I've successfully run & stress tested with the 2.40(B) strap:
bus clock = 457
memory @ 1097 (2.4x457)
MCH =1.24
tRD=8
tRFC=62 (intentionally loose)

The remainder of the bios settings closely follow LSDMEASAP's recommendations.
Apparently he's not always right, but he's never wrong.

[Hoss331]

Re: P45 UD3P - Large RAM Problem

I figured I would give this a bump since I also have the same problem with the 2.40b strap not booting above 434fsb.

[Nickel020]

Re: P45 UD3P - Large RAM Problem

Can you give a little more information? Can't really help you without knowing your hardware and your other settings. Does a higher MCH Core voltage also cause instability for you?