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Thread: EP45-UD3P + 8GB + Q9400 woes




  1. #1
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    Default EP45-UD3P + 8GB + Q9400 woes

    I've been banging my head against for the last several days and it seems like there's been alot of similar problems around here.

    Using an EP45-UD3P with a Q9400 and 2 kits of (2x2GB) Mushkin 996599 memory (5-5-5-15, 2.0-2.1V). I can run three sticks fine, but as soon as I put in the fourth stick (switched sticks and slots around, all are good) I get the infamous power error at POST. I've been assuming it's been a problem with the MCH voltage or the DRAM voltage. I've even underclocked the memory (working at 800Mhz would be fine at this point, I just need to get all 8GB working).

    BIOS Settings below..thanks for taking the time to read this:


    Advanced Clock Control [Press Enter]
    CPU Clock Drive...........................: 800
    PCI Express Clock Drive.................: 900
    CPU Clock Skew (ps)....................: 0ps
    MCH Clock Skew (ps)...................: 0ps


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.40B
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................15

    Advanced Timing Control
    tRRD...........................................4
    tWTR..........................................4
    tWR............................................8
    tRFC...........................................68
    tRTP...........................................4
    Command Rate (CMD) ....................:2

    Channel A
    Static tRead Value.........................:8
    tRD Phase0 Adjustment...................:Auto
    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.........................:8
    tRD Phase0 Adjustment...................:Auto
    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….……….........................: Auto (1.20000V)
    CPU Termination…..... 1.200V*.......: Auto (1.200V)
    CPU PLL…………………....1.500V*.......: Auto (1.500V)

    CPU Reference.............................:Auto (.760V)

    MCH/ICH
    MCH Core…………….........................: 1.3000V
    MCH Reference….…….0.760V...........: Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.500V............: Auto
    ICH Core…………...……1.100V............: Auto

    DRAM
    DRAM Voltage ……....1.800V............: 2.1
    DRAM Termination .…0.900V............: Auto
    Channel A Reference 0.900V............: Auto
    Channel B Reference 0.900V............: Auto

  2. #2
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Hmm, I'm not sure what kind of timings 8gb on 4 sticks like, but have you tried even looser timings? Like tRFC or 72, maybe tWTR and tWR of 6, tRTP of 5, and static tRead values of 10-12 (suggested loose timings taken from lsdmeasap's template).

    If that doesn't work, maybe try a manual "(G)MCH Frequency Latch" of 200 or 266 mhz and use the multiplier to get 800mhz (or even 1000/1066) memory with the lower latches (not quite sure how the latch works, but I think it has something to do with chipset timings).

    Another thing to try, if nothing else works, is to flash the BIOS to the latest F8 BIOS (if it doesn't already have the latest BIOS).

  3. #3
    profJim's Avatar
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Many or most 4x2GB memory setups won't run at the ram's rated speed. Some manufacturer's websites state this fact.

    Some of your AUTO voltage settings are hurting you. My Mushkin ram works best at 2.02 volts up to DDR2-1100 speeds. With 8GB you might have to try ram volts from 2.00 - 2.10 volts. It sounds counter intuitive, but you can probably get your 8GB running at 667 MHz with lower volts. This will be your starting point & we'll work to get it higher. Make the following bios changes before you install your 4 memory module.

    Set PCI Express Frequency (SPD) = 100 <-- leave it at this setting forever

    Set System Memory Multiplier = 2.00B <-- this will give you 667 MHz
    CPU Vcore….……….......?.?????........: Auto (1.20000V) <-- manually set this to the "normal" value shown by ?.?????
    CPU Termination…..... 1.200V*.......: Auto (1.200V) <-- manually set this to 1.200
    CPU PLL…………………....1.500V*.......: Auto (1.500V) <-- manually set this to 1.500

    MCH/ICH
    MCH Core…………….........................: 1.3000V <-- manually set this to 1.34 volts (for now)

    DRAM
    DRAM Voltage ……....1.800V............: 2.1 <-- manually set this to 2.06 volts

    MCH core voltage is safe at 1.34 volts, but when this setting is too high, it can result in boot problems or instability. You might have to decrease this setting to 1.30 or 1.32 volts.

    If you still can't boot, drop the dram voltage to 2.00. If this fails increase it to 2.12 volts. Once your running with all 4 sticks you'll try the following changes:

    SMP = 2.40B ---> DDR2-800
    SMP = 2.66D ---> DDR2-888
    SMP = 3.00A ---> DDR2-1000
    SMP = 3.20B ---> DDR2-1066 (hopefully once we've found working voltages)

    Before you change memory timings, post a screen shot of Memset, using the ">>" tab to show the memory timings for all 3 modules. Running with uderclocked memory, the loose AUTO memory timings should work fine.

    Check out this post for info at the Mushkin Forums.

    Let us know how you make out.
    Q9650 @ 4.10GHz [9x456MHz]
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  4. #4
    kick's Avatar
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Ive only tried 8g for a day or so,mixed set of 667 and 800 mhz ram(4x2).It did clock to around 710mhz(the 800 mhz was dumbed down)

    What happens with 3 sticks of mem,does the third stick make all the mem run in single channel mode?.
    Since you haave most items on auto ,did you load and save optimum defaults with 2 sticks in and then turn off an try 4 sticks?
    Do you have an exact link for the memory?

    From my v limited experience of running 4 sticks of memory id try something like

    CPU Clock Drive...........................: 800
    PCI Express Clock Drive.................: 900
    CPU Clock Skew (ps)....................: 0ps
    MCH Clock Skew (ps)...................: 0ps


    DRAM Performance Control
    Performance Enhance...................: [STANDARD]
    Extreme Memory Profile (X.M.P.).....: Disabled
    (G)MCH Frequency Latch...............: [Auto]
    System Memory Multiplier ..............: 2.40B
    Memory Frequency (Mhz) ..............: 800
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................5
    tRCD .........................................5
    tRP'...........................................5
    tRAS..........................................15

    Advanced Timing Control------ (all auto,except possibly static read)
    tRRD...........................................4
    tWTR..........................................4
    tWR............................................8
    tRFC...........................................68
    tRTP...........................................4
    Command Rate (CMD) ....................:2

    Channel A
    Static tRead Value.........................:8 (static read 9/10 or auto)
    tRD Phase0 Adjustment...................:Auto
    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.........................:8 (static read 9/10 or auto)
    tRD Phase0 Adjustment...................:Auto
    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….……….........................: Auto (1.20000V)(1.225-1.25)
    CPU Termination…..... 1.200V*.......: Auto (1.200V)
    CPU PLL…………………....1.500V*.......: Auto (1.500V)

    CPU Reference.............................:Auto (.760V)

    MCH/ICH
    MCH Core…………….........................: 1.3000V(or the 1.05v some have found works for 4 sticks)
    MCH Reference….…….0.760V...........: Auto
    MCH/DRAM Ref.…......0.900V...........: Auto
    ICH I/O……………….....1.500V............: Auto
    ICH Core…………...……1.100V............: Auto

    DRAM
    DRAM Voltage ……....1.800V............: 2.1 (2.14 )
    DRAM Termination .…0.900V............: Auto
    Channel A Reference 0.900V............: Auto
    Channel B Reference 0.900V............: Auto



    enter the 333mhz manually (with host frequency enabled)
    Try using the enhanced performance profiles values stamped on the memory for the advanced timings.

    Changes in bold type are what id try
    Last edited by kick; 04-12-2009 at 09:32 AM.
    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

  5. #5
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Thanks for the replies! I tried all of the suggestions above, and still no progress. Right now I'm sitting at:

    2.00B
    667Mhz
    1.3 MCH Core (tried 1.30, 1.32, 1.050)
    Manually set the auto settings as directed (CPU Vcore, Termination, and PLL)
    Switched memory timings to the really loose Auto settings (5-7-7-24)
    DRAM voltage sitting at 2.1 (tried 2.06 and 2.12)

    Still can't boot with four sticks :( Any ideas?
    Last edited by cdrantz; 04-13-2009 at 05:01 AM.

  6. #6
    kick's Avatar
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    That seems a bit unlucky at such a low speed..
    Especially since I could run np with a least one set of really ordinary 5300 mem.
    Maybe get your settings all on auto with and run the memory at 1.8 V! ie the standard ram voltage.
    Or actually use the xmp profile setting in bios for the memory timings.
    It does work: If you arent overclocking other components.
    Try 2 sticks first,if it wont run 2 it wont run 4.
    I cant tell you exactly what my 4 stiks booted up at but it was at standard speeds.5300 (667mhz) mem is an exact match for my cpu at 1:1 ,yours too I think, and then I worked up the small overclock from there.
    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

  7. #7
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Using the XMP Profile set to Profile1, I can run 3x2GB sticks at the full 1066Mhz 5-5-5-15 timing with MCH Core at 1.1000V and DRAM voltage at native 1.8

    It seems really odd that I can run three sticks at full performance with no voltage tweaks, but I can't get four sticks to work even when underclocking and increasing voltage. Any thoughts?

  8. #8
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Send the RAM back. I had the same issues with 8GB of Corsair memory, only that in my case only ONE stick would run 1066 properly.

    After replacement i'm running happily with all four sticks at 1050MHz which is more than enough for me. Also it's in Dual Channel. If in your case it's reverting to single there's definitely something wrong with that RAM.
    Pro hardware technician for PC, Laptop and Sound equipment.

  9. #9
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Yeah, but it doesn't seem specific to a single stick of ram though. I can rearrange the order of the sticks as much as I want or use whichever three out of the four, they always work, and it's when I add the fourth stick (whichever actual stick that may be) when things go haywire. Should I really consider returning the RAM?

  10. #10
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    Default Re: EP45-UD3P + 8GB + Q9400 woes

    Maybe or maybe not. If it absolutely refuses to run 4 sticks properly, up the MCH voltage to 1.4. If it doesn't work still, send one kit of RAM back. Look at the serial numbers on the RAM and send the one that is more "mismatched". Maybe you'll get lucky.

    Hope it'll work for you, i know, i've been in the same boat not too long ago.
    Pro hardware technician for PC, Laptop and Sound equipment.

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