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  1. #1
    Xtreme Member vodka3dg's Avatar
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    hi there lads, im not an actual RF owner, but i do have its bios modded to my P5E bios is RF0410. ok, so straight to the point... i was just wondering how i could set tREF values in bios instead of having to set them with MemSet 3.4 in windows. any clues? i thought that extreme tweaker was the right setting to do the trick, but the other day i proved myself wrong... the strange thing is that when i had my SuperTalent (cheap ass) memory, i allways had tREF at 16383T while on "Stronger" extreme tweaker setting.. but now, with my g.skill set i find that i would only get 3120T when in OS. "strange" i thought, "but hey, dont give up!" and so i ended up here...

    hope this helps:
    Code:
    Extreme Tweaker 
    Ai Overclock Tuner : Manual 
    OC From CPU Level Up : AUTO 
    CPU Ratio Control : Manual 
    - Ratio CMOS Setting : 7
    FSB Frequency : 458
    FSB Strap to North Bridge : 333
    PCI-E Frequency: 105
    DRAM Frequency: DDR2-1100
    DRAM Command Rate : 2T
    DRAM Timing Control: Manual 
    CAS# Latency : 5
    RAS# to CAS# Delay : 5
    RAS# Precharge : 5
    RAS# ActivateTime : 15
    RAS# to RAS# Delay : Auto
    Row Refresh Cycle Time : 50
    Write Recovery Time : Auto
    Read to Precharge Time : Auto
    
    Read to Write Delay (S/D) : 9
    Write to Read Delay (S) : 4
    Write to Read Delay (D) : 6
    Read to Read Delay (S) : 4
    Read to Read Delay (D) : 6
    Write to Write Delay (S) : 5
    Write to Write Delay (D) : 7
    
    Write to Pre Delay: 14
    Read to Pre Delay: 5
    Pre to Pre Delay: 1
    All Pre to Act Delay 6
    All Pre to Ref Delay: 6
    
    DRAM Static Read Control: Enabled
    Ai Clock Twister : Stronger
    Transaction Booster : Manual
    Common Performance Lvl: 7
    Pull-In of CHA PH1: Disabled
    Pull-In of CHA PH2: Disabled
    Pull-In of CHA PH3: Disabled
    Pull-In of CHA PH4: Disabled
    Pull-In of CHA PH5: Disabled
    Pull-In of CHB PH1: Disabled
    Pull-In of CHB PH2: Disabled
    Pull-In of CHB PH3: Disabled
    Pull-In of CHB PH4: Disabled
    Pull-In of CHB PH5: Disabled
    
    CPU Voltage : 1.375000
    CPU PLL Voltage : 1.5
    North Bridge Voltage : 1.51
    DRAM Voltage : 2.0
    FSB Termination Voltage : 1.36
    South Bridge Voltage : 1.10
    
    Loadline Calibration : Disabled
    CPU GTL Reference : 0.67
    North Bridge GTL Reference : 0.67
    DDR2 Channel A REF Voltage : Auto
    DDR2 Channel B REF Voltage : Auto
    DDR2 Controller REF Voltage : Auto
    SB 1.5V Voltage : 1.55
    
    CPU Spread Spectrum : Disabled 
    PCIE Spread Spectrum : Disabled 
    
    Advanced CPU Configuration 
    CPU Ratio Control : Manual 
    - Ratio CMOS Setting : 7
    C1E Suppport : Disabled 
    CPU TM Function : Disabled 
    Vanderpool Technology : Disabled 
    Execute Disable Bit : Disabled 
    Max CPUID Value Limit : Disabled

    many thanks in advance for any piece of advice anybody can provide
    Last edited by vodka3dg; 02-24-2009 at 05:42 AM.
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  2. #2
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    Quote Originally Posted by vodka3dg View Post
    hi there lads, im not an actual RF owner, but i do have its bios modded to my P5E bios is RF0410. ok, so straight to the point... i was just wondering how i could set tREF values in bios instead of having to set them with MemSet 3.4 in windows. any clues? i thought that extreme tweaker was the right setting to do the trick, but the other day i proved myself wrong... the strange thing is that when i had my SuperTalent (cheap ass) memory, i allways had tREF at 16383T while on "Stronger" extreme tweaker setting.. but now, with my g.skill set i find that i would only get 3120T when in OS. "strange" i thought, "but hey, dont give up!" and so i ended up here...

    many thanks in advance for any piece of advice anybody can provide
    It isn't possible to change tREF in the BIOS. You have to use MemSet for that. I hope Felix add auto tREF for the ASUS Rampage Formula X48 Chipset.
    Mikeyakame already gave him some code to make it easier for him.

    ASUS should definitely add it to the BIOS that it sets tREF timing for the memory speed you are using.

    Let's see what they have to say about it. They are going to run some tests to find out what should be done to fix the issues with BIOS 0802.
    Last edited by Alien Grey; 02-25-2009 at 01:36 AM.

  3. #3
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    Quote Originally Posted by A-Grey View Post
    It isn't possible to change tREF in the BIOS. You have to use MemSet for that. I hope Felix add auto tREF for the ASUS Rampage Formula X48 Chipset.
    Mikeyakame already gave him some code to make it easier for him.

    ASUS should definitely add it to the BIOS that it sets tREF timing for the memory speed you are using.

    Let's see what they have to say about it. They are going to run some tests to find out what should be done to fix the issues with BIOS 0802.
    Thats always a start. Now if they'd only take a leaf out of DFIs book and display the current PS skew values it'd be awesome.

    DIMM1 Clock Fine Delay 5T
    DIMM2 Clock Fine Delay 7T
    DIMM3 Clock Fine Delay 5T
    DIMM4 Clock Fine Delay 6T

    They are my values at 415mhz fsb, cross clocking/common clock aggressive (aka strong) , I'm using a2/b2 for ram so dimm 2/4 which the values of clock fine delay are pretty much how I set them in bios.

    Fine Clock Delay Adjust = 30PS (number of degrees times this adjust gives you final ps skew)
    Dimm2 Clock Fine Delay = 22 degrees (660ps)
    Dimm2 Control Fine Delay = 26 degrees (780ps)
    Dimm4 Clock Fine Delay = 19 degrees (570ps)
    Dimm4 Control Fine Delay = 22 degrees (660ps)

    Dimm4(B2) is advanced 90ps from Dimm2(A2), the base values were around 740ps on clock fine delay for both a2/b2 which I've found using DLL Skew Model 1 for these sticks is the right model to use for delays. Also reducing DRAM CK (clock) and DQ (data) Drive Strength from CK=6, DQ=8 to CK=5, DQ=6 has magically fixed the random memory errors I was getting here and there when using higher drive strengths.

    You know the nicest thing though.

    Im using 8x415FSB at the moment, and Speedstep/C1E are both enabled and working as should, VID Special Add is amazing. 105.5% VID (1.2875v VID) which gives me 1.34v load, and 1.355v or so idle with Vdroop Compensation enabled. DFI's implementation is nowhere near as aggressive as Asus LLC, still has small droop but its consistent, 0.01-0.02v droop is worst I've seen so far.

    Speedstep gives me 6x415 = 2.45ghz, C1E drops Vcc down to 1.22v during speed step. It's stable as could be too with them both enabled. I've never cared much for power saving features mostly because Asus boards never have them working once overclocked, but after experiencing working powersaving when overclocked on this DFI board I don't think I'll be content with broken Asus power saving features anymore!
    Last edited by mikeyakame; 02-25-2009 at 02:06 AM.

    DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
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  4. #4
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    Quote Originally Posted by mikeyakame View Post
    You know the nicest thing though.

    Im using 8x415FSB at the moment, and Speedstep/C1E are both enabled and working as should, VID Special Add is amazing. 105.5% VID (1.2875v VID) which gives me 1.34v load, and 1.355v or so idle with Vdroop Compensation enabled. DFI's implementation is nowhere near as aggressive as Asus LLC, still has small droop but its consistent, 0.01-0.02v droop is worst I've seen so far.

    Speedstep gives me 6x415 = 2.45ghz, C1E drops Vcc down to 1.22v during speed step. It's stable as could be too with them both enabled. I've never cared much for power saving features mostly because Asus boards never have them working once overclocked, but after experiencing working powersaving when overclocked on this DFI board I don't think I'll be content with broken Asus power saving features anymore!
    I never understood why this isn't possible on ASUS boards. Isn't this something that the EPU chip supposed to do, saving energy?
    Perhaps they think that if you start overclocking you don't really care much about saving energy and it's easier for them to leave it like it is now.

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