Ep45-Dq6 with 8 gigs, Help!

[chris_b]

Hi,

This is my first post here, i posted my issue in the Muskin forum and got some helpful posts however i'm still having problems so thought i would come over here and see what i could find out.

I have the following

EP45-DQ6 - Bios: F13D k:0428009
Q9550 (not overclocked)
8gig Mushkin HP2 6400 DDR2 800 2gbx4
Sapphire 4770
WD Caviar Black HD
Samsung SATA DVDR
Enermax Liberty 500w PS

I have tested all my ram individually in all the slots and they test out ok. I have then test 2gb, 4gb, 6gb and they test fine. When i add the last 2gb for a total of 8gb i get errors in testing and windows will blue screen randomly. As soon as i go back to 6 gigs everything it stable.

These were the following settings that were suggested to me:

Performance Enhance: Standard
Extreme Memory Profile (X.M.P): Disabled
(G)MCH Frequency Latch: 333
System Memory Multiplier(SPD): 2.40B
CAS Latency Time: 5
tRCD: 4
tRP: 4
tRAS: 12

>Advanced Timing Control
tRRD: 4(3-5)
tWTR: 5(2-5)
tWR: 6(4-6)
tRFC: 60(50-60)
tRTP: 6(4-6)
Command Rate(CMD): 2T
>>>>>> Channel A
Static tRead Value: 9(7-9)
tRD Phase(0-3) Adjustment: Auto
Trd2rd(Different Rank): Auto
>>>>>> Channel B
Static tRead Value: 9(7-9)
tRD Phase(0-3) Adjustment: Auto
Trd2rd(Different Rank): Auto

DRAM Voltage: 1.8V

I tried these without any luck. At this point i am running 6 gigs but would love to use all 8 if this can be figured out.

Thanks in advance for any suggestions!

Chris

[wazza300]

Re: Ep45-Dq6 with 8 gigs, Help!

if you use 8gigs slacken off your timings or set them to auto and try...see what auto sets the timings at

[Sunburn74]

Re: Ep45-Dq6 with 8 gigs, Help!

Don't run your ram at a multiplier higher than than 2.00B or 2.00D for stability purposes.

BTW I have the same board and same ram. Both work fine at 8gbs and 333mhz latch with 2.00B multiplier. If you try to use weird multiplier settings you get instablity. There's no advantage or performance gain to running your ram faster than you cpu.

Also for stability purposes use 2.00V instead of the default 1.8

[Chike]

Re: Ep45-Dq6 with 8 gigs, Help!

Is this your ram? if not please provide the link too your model.
Is it 8GB kit or 2x4GB kits?
More than 1x1GB of ram often need mor MCH Core, for 8GB try 1.2-1.28v, in less often cases less is required 1.05-0.95v.
You may as well need to increase DRAM Voltage.

[profJim]

Re: Ep45-Dq6 with 8 gigs, Help!

When running with 8GB of memory, the memory speed often has to be set at a somewhat lower speed. Many memory manufacturers state on their websites that memory speeds are only guaranteed for 2x2GB setups.

The 2.40B memory multiplier would be fine with your setup if you only had 2x2GB of memory and 2.40 x 333 = 800MHz.
2.00D should not be used with cpu FSB less than 400MHz.

As Chike said, your MCH Core voltage will probably need to be in the 1.2x volt range.
Sunburn74's 2.00 volt memory setting should be applied. You might be able to lower it after your system has passed stability testing.

Please post your current bios settings using either of the EP45 bios templates.

[Lsdmeasap]

Re: Ep45-Dq6 with 8 gigs, Help!

Yes, please let us know the model # so we can check a few things. You likely need to use more than 1.8V and you need to set some MCH Voltages as well as a few other things.

I can give you a full template of settings to try to work with, please give us your model # and fill this out with the current settings you are trying that fail >>>

This is Just a template I use to ask people their settings, pay no attention to the numbers in it, replace with yours

CPU = Model #
Motherboard = Model, Revision #
BIOS Version =
Ram = Brand, Model#, Part#, And or Link

[b][u]MB Intelligent Tweaker(M.I.T.)[/u][/b]
Robust Graphics Booster ...............: Auto or Fast
CPU Clock Ratio ..........................: 
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 


[b][u]Clock Chip Control [/u][/b]
[b][u]Standard Clock Control[/u][/b]
CPU Host Clock Control..................: [Enabled] 
CPU Host Frequency (Mhz) ............: Mhz
[B]PCI Express Frequency (Mhz) .........:Set to 100[/B]

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


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


[b][u]DRAM Performance Control[/u][/b][u][/u]
[B]Performance Enhance...................: [STANDARD][/B]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 
Memory Frequency (Mhz) ..............: 
DRAM Timing Selectable ................: [Manual]

[b]Standard Timing Control[/b]
CAS Latency Time........................
tRCD .........................................
tRP'...........................................
tRAS..........................................

Set all Suggested below to highest Values first.  Then later you can lower, one at a time, testing as you go

[b][u]Advanced Timing Control[/u][/b]
tRRD...........................................
tWTR..........................................
tWR............................................
tRFC...........................................
tRTP...........................................
Command Rate (CMD) ....................:2

[u][b]Driving Strength Profiles[/b][/u][b][/b]
Driving Strength ............................

[b]Channel A[/b]
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
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

[b]Channel B[/b]
Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
 tRD Phase0 Adjustment...................:Auto <<< Leave for all below as well
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

[b][U]Motherboard Voltage Control[/U][/b][U][/U]

[b]CPU[/b]
CPU Vcore….……….........................:Auto if not overclocking, if you are overclocking please do find and set your own voltages

CPU Termination…..... 1.200V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.2-1.5 depending on Vcore, try to keep at least .1 under vcore.  Auto is fine if not overclocking

CPU PLL…………………....1.500V*.......: << If overclocking Please set to stock, Auto overvolts this way to much.  Optimal range for overclock would be 1.5-1.65.  Auto is fine if not overclocking

CPU Referen.…………....0.755V*.......: <<< .64% Of Vtt (Termination above) Auto Will set this correctly 

CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above) Auto Will set this correctly 

[b]MCH/ICH[/b]
MCH Core…………….....1.100V...........: << 
MCH Reference….…….0.800V...........; <<< Leave
MCH/DRAM Ref.…......0.900V...........: <<< Leave
ICH I/O……………….....1.500V............: <<< Leave
ICH Core…………...……1.100V............: <<< Leave

[b]DRAM[/b]
DRAM Voltage ……....1.800V............: 
DRAM Termination .…0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave

[b][U]Advanced Settings[/U][/b][U][/U]
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] Enabled if you use Vmware/Virtual PC

[b][U]Integrated Peripherals[/U][/b][U][/U]
Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB