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Thread: GA-EP45-UD3P stable but do I need to tweak memory settings




  1. #11
    Chike is offline Senior Member
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Timings are just as they should be for DDR-800, the reason BIOS shows tRFC 68 is because XMP is on auto and that's the value for DDR-1066.
    Unlike the standard timings that sometimes show the value that will be actually used, advanced timings always show unscaled SPD values.

    EDIT: G.Skill ram seems not to like a high MCH Core very much. Lower MCH Core and possibly lower MCH ref are worth looking into.
    Last edited by Chike; 08-13-2009 at 03:43 PM.

  2. #12
    kick's Avatar
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Gskill mem is pretty tolerant ,check my sig.
    Tho your sticks dont seem(according to customer reviews) to be as good for 4-4-4-12 at lower speeds ,but then again they arent sold as 800 mem.
    My 800 mem holds 4-4-4-12 all the way to 900mhz,the timings its best at and it has an epp for cas4.
    Yours is designed/ binned for cas5 and has a cas 5 epp so should be better at that range.

    What I would be trying especially since your a gamer is 400 fsb..400x8 should be safe enough even if you have standard intel cooler?
    Youve been running 3ghz already.You could go more conservative again with something like 390 fsb/cpu ref for 3.13ghz
    Set your memory on the 2:00B or D multiplier to start and keep things understressed.
    Then go for the 2:66D one .The D multiplier will "relax " your memory pl a bit and hopefully get your memory to its speed.
    This may work fine with most settings on auto except for cpu v mch v and dram v.Even with those you shouldnt have to increase them much.
    Store your good settings etc as usual .
    If it doesnt work out Im sure people here would have settings suggestions.
    Actually post the optimised default settings shown in your bios when you load it up too.

    If for some reason you dont want to move off 333mhz cpu ref speed an if it was me(disclaimer) I would enable xmp extended memory profile and chose the epp on your memory ,there is only one.
    Ive tried it and it works fine on my memory when not overclocking cpu etc.the only thing I had to adjust was mem voltage slightly.I had to up it to 1.9 i think,which if you equate it to yours would be 2.1v.

    Of course we could allways get a couple of sticks of this stuff http://www.newegg.com/Product/Produc...82E16820231201

    Only trouble is even tho its half the price it once was its still at cpu type price :(
    Last edited by kick; 08-13-2009 at 05:55 PM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  3. #13
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Quote Originally Posted by Psycho101 View Post
    From the Memset screen-shots of your RAM's SPD, it seems that the BIOS is setting tRFC and maybe some other advanced timings tighter than the RAM is rated for. You will notice that Memset says your current tRFC is set to 52. Even if the value on the left of auto states 68 in the BIOS I would still set this manually for now as obviously the board isn't being honest about the values it's using.

    I would set the Advanced Timings to read:

    Advanced Timing Control
    tRRD...........................................4 [5]
    tWTR.......................................... 4 [5]
    tWR............................................13 [10] 13 is a bit too loose, even for safe settings. Normal range for 4gb is 6-10
    tRFC...........................................68 [68]
    tRTP........................................... 4 [5]
    Command Rate (CMD) ....................:2

    If these settings don't help, cycle through other RAM multipliers that give you more than DDR-800. If one of these work, at least it will give you more theoretical performance than DDR-800.

    Alternatively, your RAM is probably capable of running at 4-4-4-12 main timings at its maximum rated voltage using the 2.00B strap (try 2.00D if that one doesn't work). this will go some way to offsetting the speed difference compared to DDR-1066 at 5-5-5-15. Gaming performance is virtually identical (for me) at either DDR-800 or DDR-1066.
    Great advice here, let us know how you get along with 1066 as he recommended and or 800 444-12

    And yes, less than 1.26 MCH for sure, and also test 800 and 1066 Driving Strength Level. 1066 should work with 3.20B and give you 1066 once you get the voltages right

    You may need to set your own Vtt (CPU Termination) try 1.225-1.25 with 1.20-1.24 MCH and start trying to get at 1066 again before giving up and sticking to 800.

    I know it may sound odd but an overclock to 400 FSB (2.66D Ram multi) may be easier to get stable for you than stock, but that's up to you to try. If you do go there, dont use Auto voltages on Vtt, PLL or Vcore

  4. #14

    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Alright, that's a lot of info to digest for a novice such as myself, so I'll try each to see what helps. I know this is not an exact science and takes some trial and error and on my part a little extra patience... lol. It may take a few days so should I continue replying to this thread with my results?
    Thanks
    RAIDMAX SMILODON Extreme Black ATX- Computer Case
    Gigabyte GA-EP45-UD3P REV 1.1 BIOS F9
    E8400 CORE2DUO @ 3 GHz
    GSKILL 4GB (2x2GB) DUAL CHANNEL KIT F2-8500CL5D-4GBPK
    EVGA 8800GT 512MB
    WD CAVIAR BLACK 1TB HDD
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  5. #15
    Lsdmeasap's Avatar
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Ya post back anytime, and anytime you have some questions feel free to post them and we will try to help

  6. #16

    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Well, I had some luck in getting the settings changed, thanks to eveyone's help. I tried each of your suggestions and wound up with a combination of all. I know I still have some more to do but thought I'd make sure I'm headed in the right direction.

    Is it possible to fry the memory slots? After making some adjustments I had the memory in slot 1 and 3 and could not get the system to reboot, just doing the boot loop deal, usually take out one stick and reboot but that would not work either so I wound up having to clear the CMOS by jumping out the connections on the mobo with the power off and unplugged. After starting back up it would go to the GIGABYTE screen which now looks like a jigsaw puzzle with pieces missalligned or half the screen blacked out and start the boot loop. Put the memory in slots 2 and 4 and got to where I'm at now. Hope I did not do any major damage! Man this could get expensive before I figure this out....LOL Anyway here are my settings
    Code:
    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: [Auto] 
    CPU Clock Ratio ..........................: [9X]
    Fine CPU Clock Ratio.....................:.  +0.0
    CPU Frequency ...........................:3.00GHz (333x9)
    
    
    Clock Chip Control 
    Standard Clock Control
    CPU Host Clock Control..................: [Disabled] 
    CPU Host Frequency (Mhz) ............: 333Mhz
    PCI Express Frequency (Mhz) .........:  [auto]
    
    C.I.A.2 .................................:[Disabled]
    
    
    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: <<< [800mV]
    PCI Express Clock Drive.................: <<< [900mV]
    CPU Clock Skew (ps)....................: <<< [ops]
    MCH Clock Skew (ps)...................: <<<   [ops]
    
    
    DRAM Performance Control
    Performance Enhance...................: [Standard]
    Extreme Memory Profile (X.M.P.).....:   [Profiled]
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: [3.2B]                                        
    
    
    Memory Frequency (Mhz) ..............:    1066   1066
    DRAM Timing Selectable ................: [Manual]
    
    Standard Timing Control
    CAS Latency Time........................       5     [5]
    tRCD ......................................... 5      [5]
    tRP'........................................... 5     [5]
    tRAS..........................................  15    [15]
    
    Set all Suggested below to highest Values first.  Then later you can lower, one at a time, testing as you go
    
    Advanced Timing Control
    tRRD...........................................4  [5]
    tWTR.......................................... 4  [5]
    tWR............................................13 [10]
    tRFC...........................................68 [68]
    tRTP........................................... 4 [5]
    Command Rate (CMD) ....................:0         [2]
    
    Driving Strength Profiles
    Driving Strength ............................
    
    Channel A
    Static tRead Value.........................:8   [9]
     tRD Phase0 Adjustment...................:0      Auto 
    tRD Phase1 Adjustment...................:0  [Auto]
     tRD Phase2 Adjustment .................:0      [Auto]
     tRD Phase3 Adjustment..................:0     [Auto]
    Trd2rd(Different Rank)....................:8   [Auto] 
    Twr2wr(Different Rank)...................:8     [Auto] 
    Twr2rd(Different Rank)...................:7     [Auto] 
    Trd2wr(Same/Diff Rank)..................:9      [Auto] 
    Dimm1 Clock Skew Control...............:Auto    [Auto]  
    Dimm2 Clock Skew Control...............:Auto     [Auto]
    
    Channel B                                       
    Static tRead Value.......................:8      [9]
     tRD Phase0 Adjustment...................:0     [Auto ]
    tRD Phase1 Adjustment...................:0      [AUTO]
     tRD Phase2 Adjustment .................:0      [Auto]
     tRD Phase3 Adjustment..................:0      [Auto]
    Trd2rd(Different Rank)....................:8    [Auto ]
    Twr2wr(Different Rank)...................:8     [Auto ]
    Twr2rd(Different Rank)...................:7     [Auto ]
    Trd2wr(Same/Diff Rank)..................:9      [Auto ]
    Dimm1 Clock Skew Control...............:Auto [AUTO] 
    Dimm2 Clock Skew Control...............:Auto [AUTO] 
    
    Motherboard Voltage Control
    Voltage Type.………...    Normal     Current
    CPU
    
    Load-Line Calibration                             [Disabled
    
    CPU Vcore….……….........................:1.30000V  [1.30000V]
    
    CPU Termination…..... 1.200V*.......: <<          [1.200V]
    
    CPU PLL…………………....1.500V*.......: <<              [1.500V]
    
    CPU Referen.…………....0.760V*.......: <<<           [0.760V]
    
    CPU Reference2………,,0.800V*.......:<<<             [Auto]    
    
    MCH/ICH
    MCH Core…………….....1.100V...........: <<            [1.100V]
    MCH Reference….…….0.760V...........; <<< Leave     [.760V]
    MCH/DRAM Ref.…......0.900V...........: <<< Leave   [.890V]
    ICH I/O……………….....1.500V............: <<< Leave    [1.500V]
    ICH Core…………...……1.100V............: <<< Leave     [1.100V]
    
    DRAM
    DRAM Voltage ……....1.800V............: [2.08V]
    DRAM Termination .…0.900V............: <<< [Auto]
    Channel A Reference 0.900V............: <<< [Auto]
    Channel B Reference 0.900V............: <<< [Auto]
    
    Limit CPUID Max. to 3.....................: [Disabled]
    No-Execute Memory Protect............: [Enabled]
    CPU Enhanced Halt (C1E)................: [Enabled]
    C2/C2E State Support....................: [Disabled]
    x C4/C4E State Support..................: [Disabled]
    CPU Thermal Monitor 2(TM2) ...........: [Enabled]
    CPU EIST Function.........................: [Enabled]
    Virtualization Technology................: [Enabled] 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 groundpounder; 08-22-2009 at 07:47 PM.
    RAIDMAX SMILODON Extreme Black ATX- Computer Case
    Gigabyte GA-EP45-UD3P REV 1.1 BIOS F9
    E8400 CORE2DUO @ 3 GHz
    GSKILL 4GB (2x2GB) DUAL CHANNEL KIT F2-8500CL5D-4GBPK
    EVGA 8800GT 512MB
    WD CAVIAR BLACK 1TB HDD
    PLEXTOR 712A DVD DRIVE
    VISTA HOME PREMIUM 32 BIT SP1

  7. #17
    kick's Avatar
    kick is offline Senior Member
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    my gskill memory is as tough as old pant,,er tough as old boots.. i tried passing 2.45 V thru it and its still alive.

    Anyway,its a bit late here and I could be wrong but as far as I know putting 2 sticks of memory in adjacent slots like 3 and 4(different colors).

    Not sue on that ..makes them into one big stick of single channel memory,you dont get the double data read.

    Ill check thread tomorrow,
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  8. #18

    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    I should have said in my last post that after putting the sticks in 2&4 everything goes back to normal , but if I try slots 1&3 I get the jigsaw puzzle screen . Thats why I asked if you could fry the memory slots themselves.
    Last edited by groundpounder; 08-21-2009 at 01:24 AM.
    RAIDMAX SMILODON Extreme Black ATX- Computer Case
    Gigabyte GA-EP45-UD3P REV 1.1 BIOS F9
    E8400 CORE2DUO @ 3 GHz
    GSKILL 4GB (2x2GB) DUAL CHANNEL KIT F2-8500CL5D-4GBPK
    EVGA 8800GT 512MB
    WD CAVIAR BLACK 1TB HDD
    PLEXTOR 712A DVD DRIVE
    VISTA HOME PREMIUM 32 BIT SP1

  9. #19
    profJim's Avatar
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    Memtest86+ reported a 10% decrease in memory bandwidth when running with memory in slots 1 & 2 using optimized bios settings with very few changes. Minimal stability testing showed no problems running IBT, Prime95, OCCT and one full Memtest86+ pass .

    With the problems you're having, I'd test my system with a different video card and only 1 memory module (if necessary) using OPTIMIZED settings and no manual voltage setting changes.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  10. #20
    Lsdmeasap's Avatar
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    Default Re: GA-EP45-UD3P stable but do I need to tweak memory settings

    1+3 is suggested for Dual Channel, but yes you can use 2+4 if you have to.

    Not sure how you could fry your channels without smelling it and knowing you did so. I would try to clear the CMOS and try again and see if things remain the same.

    What voltages did you apply that would lead you to even start to think you fried something anyway?????

    I agree with profjim, the errors you mention sound graphic related to me so using a different card could rule that out. Odd though that you don't get this when using the other channels so this thought may just be useless anyway?

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