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

[Dark-Energy]

Hey all,

I just got my UD3P today to replace my P5Q Pro and so far it's been much better and I can actually OC for once. So far I've gotten to 500 x 8 on my E8400 and things seem to be stable so far. Here's my settings

E8400 500 X 8 4000MHz F9 BIOS

Robust Graphics Booster.........................[ Auto ]
CPU Clock Ratio.................................[ 8 ]
Fine CPU Clock Ratio............................[ 0.0 ]
CPU Frequency 4.0GHz...........................[ 500 x 8.0 ]

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

CPU Host Clock Control..........................[ Enabled ]
CPU Host Frequency (Mhz)........................[ 500 ]
PCI Express Frequency (Mhz).....................[ AUTO ]
C.I.A 2 ..................................................[Disabled]

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

CPU Clock Drive.................................[ 700mv ]
PCI Express Clock Drive.........................[ 700mv ]
CPU Clock Skew..................................[ 0ps ]
MCH Clock Skew..................................[ 0ps ]

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

Performance Enhance .............................[Standard]
Extreme Memory Profile (XMP)....................[ Disabled ]
(G) MCH Frequency Latch.........................[ 333MHz ]
System Memory Multipler.........................[ 2.00B ]
Memory Frequency 1066...........................[ 1000 ]
DRAM Timing Selectable..........................[ Manual ]

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

******Advanced Timing Control******

tRRD............................................Au to
tWTR............................................ Auto
tWR............................................. Auto
tRFC............................................[ 52 ] Auto
tRTP............................................ Auto
Command Rate (cmd)..............................[ 2 ]

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

Load-Line Calibration [Enabled]
CPU Vcore [ 1.25 ]...................[ 1.26875 ] (1.232 cpu-z)
CPU Termination [ 1.20 ]...................[ 1.28 ]
CPU PLL [ 1.50 ]...................[ 1.57 ]
CPU Reference [ 0.760 ]...................[ 0.810 ] Easytune says .760?

MCH Core [1.1 ]...................[ 1.28 ]
MCH Reference [0.760 ]...................[ 0.746 ] Easytune says .700?
MCH/DRAM Refernce [0.900 ]...................[ Auto ]
ICH I/O [1.500 ]...................[ Auto ]
ICH Core [1.100 ]...................[ Auto ]

DRAM Voltage [1.800 ]...................[ 2.100 ]
DRAM Termination [0.900 ]...................[ Auto ]
Channel A Ref [0.900 ]...................[ Auto ]
Channel B Ref [0.900 ]...................[ Auto ]

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

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 ]

So, after Blend and small FFT was stable in prime for 1-2 hours I decided to try 8.5 multi and bumped vcore. Primed again on small FFT and no errors but blend would eather error or bsod between 1-10 minutes. I tried various MCH voltage and vtt as well as MCH reference and can't get it stop bsoding or erroring. Must be the extra CPU speed causing something. Any ideas? I also tried 50-100ps CPU clock skew.

Gigabyte UD3P Rev1.11 F9 BIOS
E8400 E0
Powercolor 4850
G.skill DRR2-1000 2x2GB 5-5-5-15 45 2T

[Hardc0r3]

i've finally been able to make 24/7 stable overclock of my e8400 @4ghz with bios f9 on my ud3p, but i can tell you it's a nightmare to get it stable if you don't have some really good ram kits. I have 2 x 2 gb ocz reaper hpc pc8500 and they sure gave me a real headache on this board.

[OC Nub]

Hey all,

I just got my UD3P today to replace my P5Q Pro and so far it's been much better and I can actually OC for once. So far I've gotten to 500 x 8 on my E8400 and things seem to be stable so far. Here's my settings



So, after Blend and small FFT was stable in prime for 1-2 hours I decided to try 8.5 multi and bumped vcore. Primed again on small FFT and no errors but blend would eather error or bsod between 1-10 minutes. I tried various MCH voltage and vtt as well as MCH reference and can't get it stop bsoding or erroring. Must be the extra CPU speed causing something. Any ideas? I also tried 50-100ps CPU clock skew.

Gigabyte UD3P Rev1.11 F9 BIOS
E8400 E0
Powercolor 4850
G.skill DRR2-1000 2x2GB 5-5-5-15 45 2T

The cpu and mch reference voltages don't read correct in et6 one you raise the vtt.
Nice overclock on that 8400.

[Dark-Energy]

Thanks, and I'm trying to go for 4.5ghz 24/7 and I know the CPU and board can do it, but it's gonna take some tweaking to get there...

Also about those references too...I don't make changes based of ET anyways I just use it for temps and fan control but once and a while I have a peak at it

[Hoss331]

Hey all,

I just got my UD3P today to replace my P5Q Pro and so far it's been much better and I can actually OC for once. So far I've gotten to 500 x 8 on my E8400 and things seem to be stable so far. Here's my settings



So, after Blend and small FFT was stable in prime for 1-2 hours I decided to try 8.5 multi and bumped vcore. Primed again on small FFT and no errors but blend would eather error or bsod between 1-10 minutes. I tried various MCH voltage and vtt as well as MCH reference and can't get it stop bsoding or erroring. Must be the extra CPU speed causing something. Any ideas? I also tried 50-100ps CPU clock skew.

Gigabyte UD3P Rev1.11 F9 BIOS
E8400 E0
Powercolor 4850
G.skill DRR2-1000 2x2GB 5-5-5-15 45 2T

Raise your mch reference up 4 steps, should show .800 in ET6 or about .850 in bios if vvt is set to 1.28. Also if your going to stay with 1:1 use the 400 2.00D strap, it should allow you to drop down another PL.

[radaja]

seems we lost something?
anyways this was from last week

[Dark-Energy]

Raise your mch reference up 4 steps, should show .800 in ET6 or about .850 in bios if vvt is set to 1.28. Also if your going to stay with 1:1 use the 400 2.00D strap, it should allow you to drop down another PL.

I did all that and couldn't get past the loading screen until I lowered MCH reference to 7.20 (at 1.20 VTT)

But yeah, I'm at 400 strap and at 2.00D with same voltages and just the changed mch reference above and currently priming in blend mode, and it's gone a bit further that it has before at 333 strap...still feels unstable though (sluggish)

edit: Okay just got a bsod after 15 minutes in blend...ill try more settings....keep em ideas coming

[lilneel12]

i need some more ideas,
anybody?

i have a gigabyte ep45-ud3p board with q9400 and gskill 8500 ram with the following settings
I managed to get it 490 stable in prime for 24hrs at the following settings
- mch core is a bit high, but i tried upping vcore and vtt and lowering mch core, but that didnt work





now, i want to try to get get 500mhz.
- any setting i do at 500, it freezes
- i've tried upping everything except mhc core
- i've also played around the skews but that makes everything unstable

any ideas for 500mhz?

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Auto
CPU Clock Ratio ..........................: 8x
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 3.92


Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 490Mhz
PCI Express Frequency (Mhz) .........:100

C.I.A.2 .................................:[Disabled]


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


DRAM Performance Control
Performance Enhance...................: [Standard]
Extreme Memory Profile (X.M.P.).....: PROFILE1
(G)MCH Frequency Latch...............: [400mhz]
System Memory Multiplier ..............: 2.0D
Memory Frequency (Mhz) ..............: 490MHZ
DRAM Timing Selectable ................: [Auto]

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


Advanced Timing Control
tRRD...........................................AUT O
tWTR..........................................AUTO
tWR............................................AUT O
tRFC...........................................AUT O
tRTP...........................................AUT O
Command Rate (CMD) ....................:AUTO

Driving Strength Profiles
Driving Strength ............................AUTO

Channel A
Static tRead Value.........................:AUTO
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................:AUTO
tRD Phase0 Adjustment...................:Auto
tRD Phase1 Adjustment...................:Auto
tRD Phase2 Adjustment .................:Auto
tRD Phase3 Adjustment..................:Auto
Trd2rd(Different Rank)....................:Auto
Twr2wr(Different Rank)...................:Auto
Twr2rd(Different Rank)...................:Auto
Trd2wr(Same/Diff Rank)..................:Auto
Dimm1 Clock Skew Control...............:Auto ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control

CPU
LLC ENABLED
CPU Vcore….……….........................:1.38125

CPU Termination…..... 1.28

CPU PLL…………………....1.500V
CPU Referen.…………....0.853
MCH/ICH
MCH Core…………….....1.100V...........: << 1.42
MCH Reference….…….0.800V...........; <<<.878
MCH/DRAM Ref.…......0.900V...........: <<< AUTO
ICH I/O……………….....1.500V............: <<< AUTO
ICH Core…………...……1.100V............: <<< AUTO

DRAM
DRAM Voltage ……....1.800V............: 2.16
DRAM Termination .…0.900V............: <<< AUTO
Channel A Reference 0.900V............: <<< AUTO
Channel B Reference 0.900V............: <<< AUTO

[pangingIII]

seems we lost something?

seems we lost some of the posts we made before the last downtime?
you are actually going back to Q9650 or that's just an old signature?

[radaja]

just an old sig.

[pangingIII]

EP45T-UD3R (DDR3), E8400 True 120 Ex


450fsb...






.
.
.
500fsb...


















.
.
.
550fsb...






.
.
.
600FSB (boot from bios)


600x6 vcore 1,15V (bios set) 1,12V (cpu-z)



625x6 DDR3-2000



635x6 DDR3-2032 1T



600x7



600x7.5



600x8

.
.
.

[bluestang]

An FYI....Kingston has a sale on HyperX memory...

http://shop.kingston.com/hyperx1/default.asp

$76 for 2x1GB DDR2-1200 (PC2-9600) memory.
$77 for DDR2-1150, but Newegg has those for $59.99.
I wonder if the DDR2-1150 from Newegg is worth it and if they will run @ 1200 MHz??

[529th]

What do the pull-ins do and when would I need to use them!? I am looking to run possibly PL 8 or 9, maybe even lower...

thanks

[OC Nub]

Can get OCZ 2x1gb 1200's for $49.00. Ordered a set yesterday, should be in tomorrow.

[pphx459]

Has anyone tried the 266 strap with 2.50A dividers at 489fsb? Is it possible to run PL 8 with this setup? Can someone post a stable template for 489x9?

I read a few pages back that 2gb dimms (g.skill 9600) have problems with the mch going above 1.44v at the 333 strap with 2.4B. Has this been resolved yet?

For the life of me I cannot seem to get 489x9 stable with the 266 strap and 2.5A regardless of changing the refs and voltages.

[bluestang]

Can get OCZ 2x1gb 1200's for $49.00. Ordered a set yesterday, should be in tomorrow.

I haven't had much luck with OCZ in the last couple years. Plus the Kingston will fit under my Dominator fan. I'm shooting for 8.5x500-515 with 2.4B mem multi. While I'm at it I will be replacing my thermal paste with AS5 and the fan on my Zen FZ120 with a 75 CFM Scythe. Good luck and let us know what you come up with.

[spinejam]

UD3P (F9b Bios): LinX (Max Mem) 20X Stable - Y

Q9550 E0 (L835B166) pack date: 11/11/2008

Robust Graphics Booster.....................[ Auto ]
CPU Clock Ratio.............................[ 8 ]
Fine CPU Clock Ratio........................[ 0.0 ]
CPU Frequency 4.0GHz........................[ 500*8.0 ]

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

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

Performance Enhance.........................[ Turbo ]
Extreme Memory Profile (XMP)................[ Disabled]
(G) MCH Frequency Latch.....................[ 333MHz ]
System Memory Multipler.....................[ 2.00b ]
Memory Frequency (Mhz) .....................[1000 DDR2]

DRAM Timing Selectable......................[ Manual ]

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

******Advanced Timing Control******

tRRD........................................[Auto ]
tWTR........................................[Auto ]
tWR.........................................[Auto ]
tRFC........................................[Auto(52)]
tRTP........................................[Auto ]
Command Rate (cmd)..........................[Auto ]

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

Load-Line Calibration [Enabled]
CPU Vcore [ 1.25 ]...............[ 1.3500 ] (1.328 CPU-Z)
CPU Termination [ 1.20 ]...............[ 1.28 ]
CPU PLL [ 1.50 ]...............[ 1.570 ]
CPU Reference [ 0.760 ]...............[ 0.835 ]

MCH Core [1.1 ]...............[ 1.32 ]
MCH Reference [0.760 ]...............[ 0.850 ]
MCH/DRAM Refernce [0.900 ]...............[ 1.000 ]
ICH I/O [1.500 ]...............[ 1.500 ]
ICH Core [1.100 ]...............[ 1.100 ]

DRAM Voltage [1.800 ]...............[ 2.02 ]
DRAM Termination [0.900 ]...............[ 1.000 ]
Channel A Ref [0.900 ]...............[ Auto ]
Channel B Ref [0.900 ]...............[ Auto ]

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

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.........................[ Enabled ]
CPU EIST Function...........................[ Disabled ]
Virtualization Technology...................[ Disabled ]

[OC Nub]

I haven't had much luck with OCZ in the last couple years. Plus the Kingston will fit under my Dominator fan. I'm shooting for 8.5x500-515 with 2.4B mem multi. While I'm at it I will be replacing my thermal paste with AS5 and the fan on my Zen FZ120 with a 75 CFM Scythe. Good luck and let us know what you come up with.

Will do, havent used OCZ since ddr400. Got my Dominator 1066's to do 1200, they have been good but don't want to burn them up. For $49.00 thought it was worth a try. Got my q9550 to 500x8.5 333 240b. When I figure out how Ill post a Screeny lol.

[DemonEyez]

Has anyone tried the 266 strap with 2.50A dividers at 489fsb? Is it possible to run PL 8 with this setup? Can someone post a stable template for 489x9?

I read a few pages back that 2gb dimms (g.skill 9600) have problems with the mch going above 1.44v at the 333 strap with 2.4B. Has this been resolved yet?

For the life of me I cannot seem to get 489x9 stable with the 266 strap and 2.5A regardless of changing the refs and voltages.

At the moment i'm testing FSB 490 - 506 range and running with 266 strap and 2.50A divider so that my 2x2GB OCZ Flex PC9200 is running 1233 - 1250Mhz.

For that to accomplisch my ram must be running with 6-5-5-15 and 2.14v
CL 5 is a nogo with this kit at those timings and voltage is below 2.18v.

PL is still at level 9, but after succesfully testing 1225 - 1266MHz last night, i'll begin testing it with PL 8.

But all of this was only doable after setting some subtimigs just right. Before I found the 'magic combo', I was experiencing the same instability as you describe. I tried everything obvious like changing voltages, ref's and dividers, and almost had given up on it. Then I started changing subtimings...

This is what I'm using for 1225 to 1250MHz and 6-5-5-15 @ 2.14v

All Precharge to Activate..................6 ( 7 if tRP is 6 )
Refrecsh Cycle Time (tRFC) ............56
Write to Percharge delayed ............18
Write to read Delayed (tWTR)......... 14
Act tot Act Delayed (tRRD)..............6
Read toWrite Delay (tRD_WR)..........10
All Precharge to Refresh Delay .........6 ( 7 if tRP is 6

Now,if one in bold is off , then LinX will error immediately. i don't know what the hell is going on, but perhaps it has something to do with the fact that there have been issues with OCZ kits and this board.
Anyways, finding the correct settings seems to have resolved the issue for me.

Oh, one more thing. i'm running with my Flex modules installed in the red slots (slots 2 and 4), it seems to help a bit. I'm able to boot with 2.40B divider (5:6) and MCH set to 1.40v
But i've found that my modules runs alot more stable using the 266 stap and 250A divider (4:5), in other words; 1250Mhz with 2.50A divider is (far) more stable than 1200MHz and 2.40B divider on my system.

[pphx459]

Q9650 @ 4400

Robust Graphics Booster.........................[ Auto     ] 
CPU Clock Ratio.................................[ 9x  ] 
Fine CPU Clock Ratio............................[ 0    ] 
CPU Frequency 4.00GHz...........................[ 489x9 ] 
  
******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.............................[ Turbo ] 
MCH Frequency Latch.............................[ 266     ] 
System Memory Multipler.........................[ 2.50A   ] 
Memory Frequency 1066...........................[ 1223    ] 
DRAM Timing Selectable..........................[ Manual  ] 
  
CAS Latency Time................................[ 5       ] 
tRCD............................................[ 5       ] 
tRP.............................................[ 5       ] 
tRAS............................................[ 15      ] 
  
******Motherboard Voltage Control****** 
  
Load-Line Calibration...........................[ Enabled ] 
CPU Vcore         [ 1.25 ]......................[ 1.425v] 
CPU Termination   [ 1.20    ]...................[ 1.30v   ] 
CPU PLL           [ 1.50    ]...................[ 1.59v  ] 
CPU Reference     [ 0.760   ]...................[ 63%   ] 
  
MCH Core          [ 1.100   ]...................[ 1.480v  ] 
MCH Reference     [ 0.760   ]...................[ 67%  ] - 
MCH/DRAM Reference [ 0.900   ]..................[ 1.08v   ] 
ICH I/O           [ 1.500   ]...................[ 1.57v    ] 
ICH Core          [ 1.100   ]...................[ 1.20v    ] 
DRAM Voltage     [ 1.800v]...................[2.16v] 
DRAM Termination [0.900v]...................[1.08v] 
Channel A Reference [0.900v]................[auto] 
Channel B Reference [0.900v]................[auto]

Finally managed to get the correct settings, will attempt to lower the volts tomorrow. Key was MCH Ref, had to bump up 4 notches from default.

[Dark-Energy]

I did all that and couldn't get past the loading screen until I lowered MCH reference to 7.20 (at 1.20 VTT)

But yeah, I'm at 400 strap and at 2.00D with same voltages and just the changed mch reference above and currently priming in blend mode, and it's gone a bit further that it has before at 333 strap...still feels unstable though (sluggish)

edit: Okay just got a bsod after 15 minutes in blend...ill try more settings....keep em ideas coming

help

E8400 500 X 8 4000MHz F9 BIOS

Robust Graphics Booster.........................[ Auto ]
CPU Clock Ratio.................................[ 8 ]
Fine CPU Clock Ratio............................[ 0.5 ]
CPU Frequency 4.0GHz...........................[ 500 x 8.5 ]

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

CPU Host Clock Control..........................[ Enabled ]
CPU Host Frequency (Mhz)........................[ 500 ]
PCI Express Frequency (Mhz).....................[ AUTO ] tried auto/100/101/102
C.I.A 2 ..................................................[Disabled]

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

CPU Clock Drive.................................[ 700mv ]
PCI Express Clock Drive.........................[ 700mv ]
CPU Clock Skew..................................[ 0ps ]
MCH Clock Skew..................................[ 0ps ]

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

Performance Enhance .............................[Standard]
Extreme Memory Profile (XMP)....................[ Disabled ]
(G) MCH Frequency Latch.........................[ 333MHz ] tried 400 couldn't boot into vista
System Memory Multipler.........................[ 2.00B ]
Memory Frequency 1066...........................[ 1000 ]
DRAM Timing Selectable..........................[ Manual ]

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

******Advanced Timing Control******

tRRD............................................Au to
tWTR............................................ Auto
tWR............................................. Auto
tRFC............................................[ 52 ] tried auto/52/45/55
tRTP............................................ Auto
Command Rate (cmd)..............................[ 2 ] tried auto/0/2

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

Load-Line Calibration [Enabled]
CPU Vcore [ 1.25 ]...................[ 1.36250 ] (1.312 load cpu-z) also tried higher
CPU Termination [ 1.20 ]...................[ 1.28 ] tried 1.2-1.34
CPU PLL [ 1.50 ]...................[ 1.50 ] tried 1.45-1.57
CPU Reference [ 0.760 ]...................[ 0.810 ]

MCH Core [1.1 ]...................[ 1.28 ] tried 1.20-1.38
MCH Reference [0.760 ]...................[ 0.746 ] tried .68-.850
MCH/DRAM Refernce [0.900 ]...................[ Auto ] tried .75
ICH I/O [1.500 ]...................[ Auto ]
ICH Core [1.100 ]...................[ Auto ] tried 1.2

DRAM Voltage [1.800 ]...................[ 2.100 ]
DRAM Termination [0.900 ]...................[ Auto ] tried .75
Channel A Ref [0.900 ]...................[ Auto ] tried .75
Channel B Ref [0.900 ]...................[ Auto ] tried .75

Anyone? I can't seem to get 500 x 8.5 no matter what I do. Prime 95 Small FFT is fine but Blend most of the time will just cause a bsod (says uncorrectable hardware something), and rarely will error. It will error if I leave the MCH reference at .76 (1.20 VTT) and any lower reference will cause a BSOD after 10 minutes of blend. have tried a bit of clock skew but not a lot. im using f8 bios

[pphx459]

At the moment i'm testing FSB 490 - 506 range and running with 266 strap and 2.50A divider so that my 2x2GB OCZ Flex PC9200 is running 1233 - 1250Mhz.

For that to accomplisch my ram must be running with 6-5-5-15 and 2.14v
CL 5 is a nogo with this kit at those timings and voltage is below 2.18v.

PL is still at level 9, but after succesfully testing 1225 - 1266MHz last night, i'll begin testing it with PL 8.

But all of this was only doable after setting some subtimigs just right. Before I found the 'magic combo', I was experiencing the same instability as you describe. I tried everything obvious like changing voltages, ref's and dividers, and almost had given up on it. Then I started changing subtimings...

This is what I'm using for 1225 to 1250MHz and 6-5-5-15 @ 2.14v

All Precharge to Activate..................6 ( 7 if tRP is 6 )
Refrecsh Cycle Time (tRFC) ............56
Write to Percharge delayed ............18
Write to read Delayed (tWTR)......... 14
Act tot Act Delayed (tRRD)..............6
Read toWrite Delay (tRD_WR)..........10
All Precharge to Refresh Delay .........6 ( 7 if tRP is 6

Now,if one in bold is off , then LinX will error immediately. i don't know what the hell is going on, but perhaps it has something to do with the fact that there have been issues with OCZ kits and this board.
Anyways, finding the correct settings seems to have resolved the issue for me.

Oh, one more thing. i'm running with my Flex modules installed in the red slots (slots 2 and 4), it seems to help a bit. I'm able to boot with 2.40B divider (5:6) and MCH set to 1.40v
But i've found that my modules runs alot more stable using the 266 stap and 250A divider (4:5), in other words; 1250Mhz with 2.50A divider is (far) more stable than 1200MHz and 2.40B divider on my system.

Thanks for the info Demon, I haven't played with the sub timings yet, everything is pretty much left on auto there. I agree with you that it seems that 2.50A is more stable, that's why I've been trying. Can't wait to see your results with PL 8. Can you also please share the rest of your template atm? I will try again with the G.Skill 9600 this weekend.

Just a general q, if the system freezes on prime what's the most likely cause? I've read that you have to raise the VTT, but I've tried all the way up to 1.42 with different combos of refs.

[pphx459]

help



Anyone? I can't seem to get 500 x 8.5 no matter what I do. Prime 95 Small FFT is fine but Blend most of the time will just cause a bsod (says uncorrectable hardware something), and rarely will error. It will error if I leave the MCH reference at .76 (1.20 VTT) and any lower reference will cause a BSOD after 10 minutes of blend. have tried a bit of clock skew but not a lot. im using f8 bios

Seems like your VTT is low and MCH/DRAM ref is a little bit off.

I would stick with the ref's you used for a lower stable oc and raise your VTT a notch or 2 to see if it helps. I'm not sure about C2D's, but on the C2Q, I only needed 1.3.

As for the MCH/DRAM ref, you may want to try 1.08, jo3r mentioned that it should be 1 notch above 1/2 of vdram.

506x8.5 stable template (didn't try lowering the volts) for my q9650 is:

Robust Graphics Booster.........................[ Auto     ] 
CPU Clock Ratio.................................[ 8x  ] 
Fine CPU Clock Ratio............................[ +5    ] 
CPU Frequency 4.00GHz...........................[ 506x8.5 ] 
  
******Clock Chip Control****** 
  
CPU Host Clock Control..........................[ Enabled  ] 
CPU Host Frequency (Mhz)........................[ 506     ] 
PCI Express Frequency (Mhz).....................[ 8.5      ] 
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.............................[ Turbo ] 
MCH Frequency Latch.............................[ 333     ] 
System Memory Multipler.........................[ 2.40B   ] 
Memory Frequency 1066...........................[ 1214    ] 
DRAM Timing Selectable..........................[ Manual  ] 
  
CAS Latency Time................................[ 5       ] 
tRCD............................................[ 5       ] 
tRP.............................................[ 5       ] 
tRAS............................................[ 15      ] 
  
******Motherboard Voltage Control****** 
  
Load-Line Calibration...........................[ Enabled ] 
CPU Vcore         [ 1.25 ]......................[ 1.4v] 
CPU Termination   [ 1.20    ]...................[ 1.30v   ] 
CPU PLL           [ 1.50    ]...................[ 1.57v  ] 
CPU Reference     [ 0.760   ]...................[ 0.836  ] 
  
MCH Core          [ 1.100   ]...................[ 1.420v  ] 
MCH Reference     [ 0.760   ]...................[ 0.876 ]  
MCH/DRAM Reference [ 0.900   ]..................[ 1.08v   ] 
ICH I/O           [ 1.500   ]...................[ 1.57v    ] 
ICH Core          [ 1.100   ]...................[ 1.20v    ] 
DRAM Voltage     [ 1.800v]...................[2.16v] 
DRAM Termination [0.900v]...................[1.08v] 
Channel A Reference [0.900v]................[auto] 
Channel B Reference [0.900v]................[auto]

Hope this helps.

[DemonEyez]

Thanks for the info Demon, I haven't played with the sub timings yet, everything is pretty much left on auto there. I agree with you that it seems that 2.50A is more stable, that's why I've been trying. Can't wait to see your results with PL 8. Can you also please share the rest of your template atm? I will try again with the G.Skill 9600 this weekend.

Just a general q, if the system freezes on prime what's the most likely cause? I've read that you have to raise the VTT, but I've tried all the way up to 1.42 with different combos of refs.

I succeeded in running PL8 last night. These are my settings for 8.5x494 which are Prime and LinX stable.

Robust Graphics Booster.........................[ Auto     ]
CPU Clock Ratio.................................[ 8  x     ]
Fine CPU Clock Ratio............................[ + 0.5    ]
CPU Frequency 4.20GHz...........................[ 494 x 8.5]
 

******Clock Chip Control******
 
CPU Host Clock Control..........................[ Enabled ]
CPU Host Frequency (Mhz)........................[ 493     ]
PCI Express Frequency (Mhz).....................[ 100     ]
C.I.A 2 [Disabled] 
 

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

CPU Clock Drive.................................[ 800mV   ]
PCI Express Clock Drive.........................[ 900mV   ]
CPU Clock Skew..................................[ 0ps     ]
MCH Clock Skew..................................[ 0ps     ]


******DRAM Performance Control******
 
Performance Enhance.............................[ Turbo   ]
MCH Frequency Latch.............................[ 266     ]
System Memory Multipler.........................[ 2.50A   ]
Memory Frequency 1066...........................[ 1235    ]
DRAM Timing Selectable..........................[ Manual  ]
 
CAS Latency Time................................[ 6       ]
tRCD............................................[ 5       ]
tRP.............................................[ 5       ]
tRAS............................................[ 15      ]


******Advanced timings******

Channel A and B
StaticRead Value................................[ 8       ]
tRD Phase0 Adjustment...........................[ auto    ]
tRD Phase1 Adjustment...........................[ auto    ]
tRD Phase2 Adjustment ..........................[ auto    ]
tRD Phase3 Adjustment...........................[ auto    ]
Trd2rd(Different Rank)..........................[ 9       ]
Twr2wr(Different Rank)..........................[ 9       ]
Twr2rd(Different Rank)..........................[ 8       ]
Trd2wr(Same/Diff Rank)..........................[ 10      ]

Dimm1 Clock Skew Control........................[ auto    ]
Dimm2 Clock Skew Control........................[ auto    ]

Driving Strength ...............................[ OC 1200 ]
 

******Motherboard Voltage Control******
 
Load-Line Calibration...........................[ Enabled ]
CPU Vcore         [ 1.25 ]......................[ 1.41250v]
CPU Termination   [ 1.20    ]...................[ 1.34v   ]
CPU PLL           [ 1.50    ]...................[ 1.590v  ]
CPU Reference     [ 0.760   ]...................[ 0.897 67% ]
 
MCH Core          [ 1.100   ]...................[ 1.440v  ]
MCH Reference     [ 0.760   ]...................[ 0.866v  ]
MCH/DRAM Reference [ 0.900   ]..................[ 1.11v   ]
ICH I/O           [ 1.500   ]...................[ 1.500   ]
ICH Core          [ 1.100   ]...................[ 1.200   ]

DRAM Voltage     [ 1.800v]......................[ 2.140v  ]
DRAM Termination [0.900v].......................[ auto    ]
Channel A Reference [0.900v]....................[ auto    ]
Channel B Reference [0.900v]....................[ auto    ] 

But I'm running into problems when upping the multi to 9x for 4446MHz
Then all of a sudden LinX will error in 7th or 8th run.
I don't understand, at 4200Mhz (8.5x494) these settings are rock solid, but at 4446MHz (9x494) I just can't get it to run without error. Upping vCore does not help. Prime Blend or Large FFT fails after 20 to 30 minutes. Is running with a higher CPU clockspeeds compromising RAM/NB stability somehow?

[DemonEyez]

Thanks for the info Demon, I haven't played with the sub timings yet, everything is pretty much left on auto there. I agree with you that it seems that 2.50A is more stable, that's why I've been trying. Can't wait to see your results with PL 8. Can you also please share the rest of your template atm? I will try again with the G.Skill 9600 this weekend.

Just a general q, if the system freezes on prime what's the most likely cause? I've read that you have to raise the VTT, but I've tried all the way up to 1.42 with different combos of refs.

I succeeded in running PL8 last night. These are my settings for 8.5x494 which are Prime and LinX stable.

Robust Graphics Booster.........................[ Auto     ]
CPU Clock Ratio.................................[ 8  x     ]
Fine CPU Clock Ratio............................[ + 0.5    ]
CPU Frequency 4.20GHz...........................[ 494 x 8.5]
 

******Clock Chip Control******
 
CPU Host Clock Control..........................[ Enabled ]
CPU Host Frequency (Mhz)........................[ 493     ]
PCI Express Frequency (Mhz).....................[ 100     ]
C.I.A 2 [Disabled] 
 

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

CPU Clock Drive.................................[ 800mV   ]
PCI Express Clock Drive.........................[ 900mV   ]
CPU Clock Skew..................................[ 0ps     ]
MCH Clock Skew..................................[ 0ps     ]


******DRAM Performance Control******
 
Performance Enhance.............................[ Turbo   ]
MCH Frequency Latch.............................[ 266     ]
System Memory Multipler.........................[ 2.50A   ]
Memory Frequency 1066...........................[ 1235    ]
DRAM Timing Selectable..........................[ Manual  ]
 
CAS Latency Time................................[ 6       ]
tRCD............................................[ 5       ]
tRP.............................................[ 5       ]
tRAS............................................[ 15      ]


******Advanced timings******

Channel A and B
StaticRead Value................................[ 8       ]
tRD Phase0 Adjustment...........................[ auto    ]
tRD Phase1 Adjustment...........................[ auto    ]
tRD Phase2 Adjustment ..........................[ auto    ]
tRD Phase3 Adjustment...........................[ auto    ]
Trd2rd(Different Rank)..........................[ 9       ]
Twr2wr(Different Rank)..........................[ 9       ]
Twr2rd(Different Rank)..........................[ 8       ]
Trd2wr(Same/Diff Rank)..........................[ 10      ]

Dimm1 Clock Skew Control........................[ auto    ]
Dimm2 Clock Skew Control........................[ auto    ]

Driving Strength ...............................[ OC 1200 ]
 

******Motherboard Voltage Control******
 
Load-Line Calibration...........................[ Enabled ]
CPU Vcore         [ 1.25v]......................[ 1.41250v]
CPU Termination   [ 1.20v   ]...................[ 1.34v   ]
CPU PLL           [ 1.50v   ]...................[ 1.590v  ]
CPU Reference     [ 0.760v  ]...................[ 0.760   ]
 
MCH Core          [ 1.100v  ]...................[ 1.440v  ]
MCH Reference     [ 0.760v  ]...................[ 0.866v  ]
MCH/DRAM Reference [ 0.900v ]...................[ 1.11v   ]
ICH I/O           [ 1.500v  ]...................[ 1.500   ]
ICH Core          [ 1.100v  ]...................[ 1.200   ]

DRAM Voltage     [ 1.800v]......................[ 2.140v  ]
DRAM Termination [0.900v].......................[ auto    ]
Channel A Reference [0.900v]....................[ auto    ]
Channel B Reference [0.900v]....................[ auto    ] 

But I'm running into problems when upping the multi to 9x for 4446MHz ( and vcore set to 1.4500v, gives 1.4250 full load )
Then all of a sudden LinX will error in 7th or 8th run.
I don't understand, at 4200Mhz (8.5x494) these settings are rock solid, but at 4446MHz (9x494) I just can't get it to run without error. Upping vCore even more does not help. Prime Blend or Large FFT fails after 20 to 30 minutes. Is running with a higher CPU clockspeeds compromising RAM/NB stability somehow?