DFI LT X48 T2R help and suggestions needed

[Jonathakru]

Hi there everyone. I have recently bought 2 pairs of GSkill DDR2 1066 2x2gig kits (8 gigs in total) and a DFI LT X48 T2R motherboard. I am still busy playing with ram and initially i could only run DDR 800 (5-5-5-15)
After hours of trying different things i have now got them up to DDR 1000 (5-5-5-15-AUTO-48) with a performance level of 8. My issues are listed below the bios template

Bios settings are as follows
CPU Feature
Thermal Management Control: Enabled
PPM(EIST) Mode: Disabled
Limit CPUID MaxVal: Disabled
CIE Function: Disabled
Execute Disable Bit: Disabled
Virtualization Technology: Disabled
Core Multi-Processing: Enabled

Exist Setup Shutdown: Mode 2
Shutdown after AC Loss: Disabled
CLOCK VC0 divider: AUTO
CPU Clock Ratio Unlock: Enabled
CPU Clock Ratio:9
Target CPU Clock:3600
CPU Clock:400
Boot Up Clock:AUTO (what should i set here?)
DRAM Speed:
Target DRAM Speed:1000
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled

Voltage Settings
CPU ViD Control:1.31
CPU VID Special Add:Auto
DRAM Voltage Control:2.1
SB Core/CPU PLL Voltage:AUTO/lowest
NB Core Voltage:1.45
CPU VTT Voltage:Auto/lowest
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: Auto
x CPU GTL 0/2 REF Volt: Auto
x North Bridge GTL REF Volt: Auto
DRAM Timing
Enhance Data transmitting: Fast
Enhance Addressing: Fast
T2 Dispatch: Disabled

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: AUTO
DIMM 1 Clock fine delay: Current
DIMM 2 Clock fine delay: Current
Ch 1 Command fine delay: Current
Ch 1 Control fine delay: Current


Ch2 Clock Crossing Setting: AUTO
DIMM 3 Clock fine delay: Current
DIMM 4 Clock fine delay: Current
Ch 2 Command fine delay: Current
Ch 2 Control fine delay: Current

Ch1Ch2 CommonClock Setting: Auto

Ch1 RDCAS GNT-Chip Delay: Auto
Ch1 WRCAS GNT-Chip Delay: Auto
Ch1 Command to CS Delay: Auto

Ch2 RDCAS GNT-Chip Delay: Auto
Ch2 WRCAS GNT-Chip Delay: Auto
Ch2 Command to CS Delay: Auto

CAS Latency Time (tCL):5
RAS# to CAS# Delay (tRCD):5
RAS# Precharge (tRP):5
Precharge Delay (tRAS):15
All Precharge to Act: AUTO
REF to ACT Delay (tRFC): 48
Performance LVL (Read Delay) (tRD): 8

Read delay phase adjust: Enter

Ch1 Read delay phase (4~0)
Channel 1 Phase 0 Pull-In: Enabled
Channel 1 Phase 1 Pull-In: Enabled
Channel 1 Phase 2 Pull-In: Enabled
Channel 1 Phase 3 Pull-In: Enabled
Channel 1 Phase 4 Pull-In: Enabled

Ch2 Read delay phase (4~0)
Channel 2 Phase 0 Pull-In: Enabled
Channel 2 Phase 1 Pull-In: Enabled
Channel 2 Phase 2 Pull-In: Enabled
Channel 2 Phase 3 Pull-In: Enabled
Channel 2 Phase 4 Pull-In: Enabled

MCH ODT Latency: AUTO
Write to PRE Delay (tWR): AUTO
Rank Write to Read (tWTR): AUTO
ACT to ACT Delay (tRRD): AUTO
Read to Write Delay (tRDWR): AUTO
Ranks Write to Write (tWRWR): AUTO
Ranks Read to Read (tRDRD): AUTO
Ranks Write to Read (tWRRD): AUTO
Read CAS# Precharge (tRTP): AUTO
ALL PRE to Refresh: AUTO

It fails prime after about 15 minutes of prime and i am unsure of wait i should do next?
More NB voltage? (my NB is sitting at 51`C after 35 minutes of prime)
More Ram Voltage?

Also if i wanted to run 4Ghz on my chip would putting the multiplier to 10 put more strain on the NB then having it at 9 as i do now?

Also i cannot get vista to go into sleep mode.It just keeps on logging back into to windows(is there a setting in the bios that i have set wrong?

Thanks/any help you can offer will mean allot to me

[affiliate13]

Hi
I keep boot up clock on auto.

More vdimm might help but get an fan on them just incase. 2.2v should be plenty

The multi at x10 will give you 4Ghz but will prolly need plenty of vcore. not sure how much on your chip, you can try up to 1.45/1.475 with good cooling.

I think 1.45 on the NB is about right for 8GB, but maybe try a slug more.

Also please try more Vcore, 1.31v seems a little low for 9x400, maybe throw 1.39v at it. You may even need more but get it stable and then try pulling some of the extra vcore back until it is unstable and go up again one notch and you should be good

Finally i would keep the 333/667 strap until you get it stable you can try other straps later to get your rated (or higher) RAM frequency.

Let me know if this works for you

[Jonathakru]

Thanks for your reply.
I am going to leave the boot up clock on auto

With the Vcore, i might have left some of my earlier tests out.
When i set the cpu voltage to 1.306 in bios it ends up being 1.32 in windows(when under load).
Yesterday i had it primging for 7 hours without fail at this voltage, but that was at DDR 800 5-5-5-15.
Now i have increased the ram and NB voltage and added one more notch of cpu voltage to try see what i can get the ram to run at. So my cpu voltage in windows under load is now 1.34

I am going to try up the NB voltage one more notch and see if that helps

This might be an extremely noob question but how does the different straps effect stability because i noticed that certain straps cause an instant hard lock on start up?

Thanks again

[Jonathakru]

Upped the NB 1 more notch and priming using blend.
Under load it is sitting at 1.43V and 50`c after 3 minutes

[Kelainefes]

The straps, other than setting a certain multiplier, will change some timings on the NB, that's why some are unstable.

[affiliate13]

Its an odd one, just seems like there are certain straps, usually 400 that cause problems on this board.
Check post #5 its sort of related to your question Noob, where did I go wrong..

333/667 seems the most reliable to work with until you get your CPU stable, then try other straps until you get what you want.
That way you are sure what is causing any instability.

I tend to leave timings to last, way last.

[Jonathakru]

Originally Posted by Kelainefes

The straps, other than setting a certain multiplier, will change some timings on the NB, that's why some are unstable.

Ahhhh Now i see,
So hopefully the little up in NB core will help?
i am now 10 minutes into prime.
Is prime 95 using blend a good way to test ram?

[affiliate13]

Prime is pretty good for everything. If you want a second opinion on your clock stability try OCCT, Othos or linpack(this one will burn it up)

for RAM specifically, try memtest but seriously put a fan on the RAM during testing

[Jonathakru]

sorry double post

[Jonathakru]

Originally Posted by affiliate13

Its an odd one, just seems like there are certain straps, usually 400 that cause problems on this board.
Check post #5 its sort of related to your question Noob, where did I go wrong..

333/667 seems the most reliable to work with until you get your CPU stable, then try other straps until you get what you want.
That way you are sure what is causing any instability.

I tend to leave timings to last, way last.

I am reading that thread now. So when i try for 4Ghz i will set my strap to 333/667 to take ram out of the equation and loosen the timings
Is it only the vcore that i should change when going from 3.6 to 4?
18 minutes into prime and still going