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Thread: P45T-DS3R with FSB @ 400mhz




  1. #1
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    Default P45T-DS3R with FSB @ 400mhz

    I've been trying to get my P45T-DS3R's FSB to 400mhz in an effort to get the most out of my DDR3 1600 RAM (and eventually OC the CPU) but I'm not having any luck. I think it is connected to the MCH's voltage setting but I do not know how high can safely take it.

    CPU: Q9550 (currently at FSB x 7)
    RAM: 4gig DDR3 1600 (Corsair, 1.8v 9-9-9-24)

    The only voltage that allows my FSB to climb higher than 350mhz is the MCH, but it is currently at 1.3 (BIOS seems to default to 1.1) and I'm not sure how high it can be and still be safe without and dedicated fan (although the case has excellent airflow). At 1.3, I able to reach 370mhz, but I haven't run Prime95 long enough at the frequency to claim that it is stable.

    Any help/thoughts would be great. Thanks! :)

  2. #2
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Sorry to bump, but I'm lost otherwise. :) Maybe some quick summary questions:

    1) How high can I safely raise the MCH voltage setting on an P45T-DS3R?
    2) Am I correct in thinking that the board should be able to hit 400mhz without issue since I've dropped the Q9550's multiplier, or I am over-simplifying?
    3) Am I missing an obvious setting that would make the board boot @ 400 without issues?

    Many thanks!

  3. #3
    Lsdmeasap's Avatar
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    Default Re: P45T-DS3R with FSB @ 400mhz

    You can use 1.2-1.3/35 for your ram. More is likely not needed, and likely not even that much is needed. I would have to assume since you did not mention other voltages that you are leaving them in auto? If so, STOP NOW as Auto Vtt (Termination) and PLL will kill your CPU.

    Ya, that board and CPU can do 400 for sure, no need to drop the multi either as that only means higher FSB to reach what you want.

    Without seeing your settings I could not say what obviously may be stopping you, but I would think likely way to many Auto's being used it a huge part of it

    Please do fill this out with what you are trying that fails and I will advise back >>>

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

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: 
    CPU Clock Ratio ..........................: 
    Fine CPU Clock Ratio.....................:.0
    CPU Frequency ...........................: 
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: Mhz
    PCI Express Frequency (Mhz) .........:Set to 100
    
    C.I.A.2 .................................:[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< 
    PCI Express Clock Drive.................: <<< 
    CPU Clock Skew (ps)....................: <<< 
    MCH Clock Skew (ps)...................: <<< 
    
    
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 
    Memory Frequency (Mhz) ..............: 
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................
    tRCD .........................................
    tRP'...........................................
    tRAS..........................................
    
    Advanced Timing Control
    tRRD...........................................
    tWTR..........................................
    tWR............................................
    tRFC...........................................
    tRTP...........................................
    Command Rate (CMD) ....................:2
    
    Driving Strength Profiles
    Driving Strength ............................
    
    Channel A
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
     tRD Phase0 Adjustment...................:<<< 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
    
    Channel B
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH
     tRD Phase0 Adjustment...................:<<< 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
    
    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….……….........................:
    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: << Please set to stock, Auto overvolts this way to much
    
    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 
    
    MCH/ICH
    MCH Core…………….....1.100V...........: << 
    MCH Reference….…….0.800V...........; <<< Leave
    MCH/DRAM Ref.…......0.900V...........: <<< Leave
    ICH I/O……………….....1.550V............: <<< Leave
    ICH Core…………...……1.100V............: <<< Leave
    
    DRAM
    DRAM Voltage ……....1.800V............: 
    DRAM Termination .…0.900V............: <<< Leave
    Channel A Reference 0.900V............: <<< Leave
    Channel B Reference 0.900V............: <<< Leave
    
    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................: [Disabled] Enabled if you use Vmware/Virtual PC
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Disabled] *Note* Must be enabled to flash from USB
    Last edited by Lsdmeasap; 12-10-2008 at 03:56 PM.

  4. #4
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Thanks, Lsdmeasap. I've been reading through some of your previous posts (sorry about the bump) and changed the PLL already. However, I'm clear on what the VTT is.

    Some of these settings are left-overs from failed attempts, others are (hopefully) safe stability/overhead tweaks.

    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Standard
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.5
    CPU Frequency ...........................: 2.83 (333x8.5)
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled] 
    CPU Host Frequency (Mhz) ............: 333Mhz
    PCI Express Frequency (Mhz) .........: 100
    
    C.I.A.2 .................................:[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 700 
    PCI Express Clock Drive.................: 700
    CPU Clock Skew (ps)....................: 0 
    MCH Clock Skew (ps)...................: 100
    
    
    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    (G)MCH Frequency Latch...............: 333mhz
    System Memory Multiplier ..............: 4.b
    Memory Frequency (Mhz) ..............: 1333mhz 
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................ 9
    tRCD ......................................... 9
    tRP'........................................... 9
    tRAS.......................................... 9
    
    Advanced Timing Control
    tRRD........................................... 6
    tWTR.......................................... 6
    tWR............................................ 8
    tRFC........................................... 75
    tRTP........................................... 8
    Command Rate (CMD) ....................: 2
    
    Channel A
    Static tRead Value.........................: (7)Auto
     tRD Phase0 Adjustment...................: (0)Auto
    tRD Phase1 Adjustment...................: (0)Auto
     tRD Phase2 Adjustment .................: (0)Auto
     tRD Phase3 Adjustment..................: (0)Auto
    Trd2rd(Different Rank)....................: (0)Auto 
    Twr2wr(Different Rank)...................: (0)Auto 
    Twr2rd(Different Rank)...................: (9)Auto 
    Trd2wr(Same/Diff Rank)..................: (7)Auto 
    Dimm1 Clock Skew Control...............: (7)Auto  ps
    Dimm2 Clock Skew Control...............: (10)Auto  ps
    
    Channel B
    Static tRead Value.........................: (7)Auto
     tRD Phase0 Adjustment...................: (0)Auto
    tRD Phase1 Adjustment...................: (0)Auto
     tRD Phase2 Adjustment .................: (0)Auto
     tRD Phase3 Adjustment..................: (0)Auto
    Trd2rd(Different Rank)....................: (0)Auto 
    Twr2wr(Different Rank)...................: (0)Auto 
    Twr2rd(Different Rank)...................: (9)Auto 
    Trd2wr(Same/Diff Rank)..................: (7)Auto 
    Dimm1 Clock Skew Control...............: (7)Auto  ps
    Dimm2 Clock Skew Control...............: (10)Auto  ps
    
    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….………........................: 1.25
    CPU Termination…..... 1.200V*.......: 1.24
    CPU PLL…………………....1.500V*.......: 1.57
    
    CPU Referen.…………....0.755V*.......: Auto
    
    MCH/ICH
    MCH Core…………….....1.100V...........: 1.3
    MCH Reference….…….0.800V...........; Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.550V............: Auto
    ICH Core…………...……1.100V............: Auto
    
    DRAM
    DRAM Voltage ……....1.800V............: 1.8
    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................: [Disabled]
    
    Integrated Peripherals
    Legacy USB Storage Detect ..............[Enabled]
    I'm not really aiming for the Moon, but instead am hoping to hit (CPU)3.4mhz and (RAM)1600mhz. Any help you could offer would be great and a huge relief as my head (and knowledge) are clearly stuck in the days of my e6400 & P35-DS3P. :)

  5. #5
    Lsdmeasap's Avatar
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Vtt is the CPU termination, sorry for not noting that!

    Ya P45 has come a LONG Way from P35 for sure!!!

    See how this helps ya >>>

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: Auto or Fast
    CPU Clock Ratio ..........................: 8
    Fine CPU Clock Ratio.....................:.5
    CPU Frequency ...........................: 3.417 (402x8.5)


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: [Enabled]
    CPU Host Frequency (Mhz) ............: 333Mhz
    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)....................: 50
    MCH Clock Skew (ps)...................: 150-300


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    (G)MCH Frequency Latch...............: Auto
    System Memory Multiplier ..............: 4.00B or 4.00D (D will be more stable)
    Memory Frequency (Mhz) ..............: 1600mhz
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................ 9
    tRCD ......................................... 9
    tRP'........................................... 9
    tRAS..........................................24

    Advanced Timing Control
    tRRD........................................... 4-8
    tWTR.......................................... 6-12
    tWR............................................ 8-14
    tRFC........................................... 70-85
    tRTP........................................... 5-8
    Command Rate (CMD) ....................: 2

    Driving Strength Profiles
    Driving Strength ............................OC 1333

    Channel A
    Static tRead Value.........................: (7)Auto
    tRD Phase0 Adjustment...................: (0)Auto
    tRD Phase1 Adjustment...................: (0)Auto
    tRD Phase2 Adjustment .................: (0)Auto
    tRD Phase3 Adjustment..................: (0)Auto
    Trd2rd(Different Rank)....................: (0)Auto
    Twr2wr(Different Rank)...................: (0)Auto
    Twr2rd(Different Rank)...................: (9)Auto
    Trd2wr(Same/Diff Rank)..................: (7)Auto
    Dimm1 Clock Skew Control...............: (7)Auto ps
    Dimm2 Clock Skew Control...............: (10)Auto ps

    Channel B
    Static tRead Value.........................: (7)Auto
    tRD Phase0 Adjustment...................: (0)Auto
    tRD Phase1 Adjustment...................: (0)Auto
    tRD Phase2 Adjustment .................: (0)Auto
    tRD Phase3 Adjustment..................: (0)Auto
    Trd2rd(Different Rank)....................: (0)Auto
    Twr2wr(Different Rank)...................: (0)Auto
    Twr2rd(Different Rank)...................: (9)Auto
    Trd2wr(Same/Diff Rank)..................: (7)Auto
    Dimm1 Clock Skew Control...............: (7)Auto ps
    Dimm2 Clock Skew Control...............: (10)Auto ps

    Motherboard Voltage Control
    Voltage Type.………... Manual
    CPU
    CPU Vcore….………........................: 1.25 You may need a bit more here for sure, as what you set is less in windows. But you could leave your voltages aside for now and see if the above ram suggestions help you out or not. If not, set your ram all to VERY Loose (high) values and then start testing again as then you will know voltages are you issue

    CPU Termination…..... 1.200V*.......: 1.24 (1.24-1.38)
    CPU PLL…………………....1.500V*.......: 1.57

    CPU Referen.…………....0.755V*.......: Auto

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.3 (1.24-1.36)
    MCH Reference….…….0.800V...........; Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.550V............: 1.55-1.6
    ICH Core…………...……1.100V............: 1.1x-1.25

    DRAM
    DRAM Voltage ……....1.800V............: 1.8 (Got a link to your ram)?
    DRAM Termination .…0.900V............: Auto
    Channel A Reference 0.900V............: Auto
    Channel B Reference 0.900V............: Auto

  6. #6
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Thank you again for your help!

    'Driving Strength Profiles' & 'ICH Core' are not appearing in my BIOS (F3). I also just checked ET6 and the only two xCH options it has outside of 'Core' and 'I/O' are 'MCH Refrence' @ .76 and "MCH/DRAM Refrence' @ .75. Otherwise I've made the changes you suggested and will start playing with the FSB.

    As for the Vcore, you're absolutely right but I'll just drag that upwards as I go. I had it a 1.3x at one point without heat (Prime95) being an issue (sub 60) so I should have sufficient breathing room there.

    The RAM is tw3x4g1600c9dhx but I could find no usefull link outside of a PDF which will tell you:

    "Each module pair is tested together at
    1600MHz

    Tested together at 1600MHz, Vdimm =
    1.80V, at latency settings of 9-9-9-24

    SPD programmed at:
    JEDEC standard 9-9-9-24 values at
    1333MHz"

    They are burried until castles of metal and are seated under a large fan so 1.9-2.0v should be safe.

  7. #7
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Well, my initial (lazy) attempt at plugging in your suggestions (and pushing the CPU Host Frequency up to 400 which I assume you wanted me to do) yeilded the expected result of me looking at a black screen. :) After clearing the CMOS and entering the settings again minus the jump to 400mhz, I've found that I can not get the FSB to budge at all past 333. It would appear that it is conected with settings the System Memory Multiplier to 4d.
    I've dropped it down to 3.33d and am slowly moving up the FSB food chain.

    Right now I'm at 370 (3.15 and 1232). Would that mean that my RAM is acting up? If so, 1333 (3.4 and 1333 @ 400mhz) is just fine considering that removing the RAM to RMA it requires removing the CPU's HS which requires removing the MOBO etc etc. :P

    If not, what settings might help? There are simply so many settings here that are currently complete jibberish to me.

    Edit: Since I'm yanking up the DRAM voltage, should I also be the same for termination? What about the four instances of Ch-x [xxxx] Reference?

    Thanks. :)
    Last edited by Cabbagered; 12-10-2008 at 07:46 PM.

  8. #8
    Lsdmeasap's Avatar
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    Default Re: P45T-DS3R with FSB @ 400mhz

    What BIOS version are you using? Driving Strength profiles should be there and not need the hotkey to find them. ICH Core may or may not be on your board, but the driving strengths should be for sure unless you are using a old BIOS or did not load optimized and apply after your last flash

    Ya, the D multi is likely not to work at all, or well anyway, until you get at or close to 400 FSB. Since you have 3.33D working then that is good, but you may want to go back to B strap until you get at 400 FSB then swtich to D since you are working your way up instead of trying hard to get 400+ FSB Working straight out. Thats what I do, I pick a spot and MAKE it work. I cant handle working my way up, drives me nuts

    And sorry, there may or may not be a 4.00D setting, I musta been lost when I was replying to you!!!

    Also note!!! SORRY! I left this out of the above table, Auto will not work so use these settings >>>

    Channel A & B
    Static tRead Value.........................:6/7-10 333/B MCH - 8/9-12 400/D MCH

    Ram voltage should be 1.6ish-1.8 for 1333-1600 respectively

    Leave all the ref voltages on Auto for now. Termination is all up to your CPU and how much Vcore you add.

    Push the Vtt and Vcore as you go, keeping Vtt under Vcore of course. All chips are different so it is hard to advise best about that, just keep the Vtt under 1.38-1.4 MAX and at should not be needed for only 400MHz. I would guess maybe, depending on vcore used 1.28-1.34 would be good Vtt for 400 Mhz
    Last edited by Lsdmeasap; 12-11-2008 at 01:04 PM.

  9. #9
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Just to make sure that we are on the same page, this is where I grabbed the F3 BIOS that I'm using: GIGABYTE - Support&Download - Motherboard - BIOS - GA-EP45T-DS3R (rev. 1.0)

    I'm not seeing Driving Strength Profiles, however. What is its function? Is it something that can be reproduced through manual settings?

    By the way, there is an option about letting the board deal with vdroop (line calibration, or something like that). I currently have it disabled. Should I have it on?

    Thanks! :)

  10. #10
    Lsdmeasap's Avatar
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    Default Re: P45T-DS3R with FSB @ 400mhz

    Ya, I see it is not in your BIOS, Driving Strength that is. Sorry about my confusion

    That boards BIOS for sure needs some updating! The P45T-UD3 models all have it, still not in this beta either. But you can test it out if you like, please do read this if you plan to test it out >>>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

    F3h
    http://america.giga-byte.com/FileLis...t-ds3r_f3h.exe

    Keep in mind, beta is beta! I see some users say that one is better then the final, others disagree and some even say F2 is better

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