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Thread: GA-EP43-DS3L Won't Boot in Dual-channel




  1. #1
    Join Date
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    Default GA-EP43-DS3L Won't Boot in Dual-channel

    Hi,

    I'm new here and wasn't having any success on Gigabyte's TS website so I thought I would try this approach. I have the above motherboard and it has just all of a sudden stopped POSTing in dual-channel and will not wake from S3 sleep.(supposedly fixed in an earlier BIOS) I believe it shipped with F6 BIOS and I have tried everything from that through F9A. Is there a further beta BIOS available? I have also tried other RAM than the original G.Skill 2x2g. I am an experienced builder and have tried all the voltage tweaks, drivers are all current etc.

    Thanks in advance

  2. #2

    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Have you tried booting with one stick of ram?
    Nothing is impossible... Just mathematically improbable..

    "The best defense against computer viruses might not even be antivirus software, but a crafty combination of education and common sense."

    Intel Pentium e5200 @ 3.8HZ (380 X 10)
    Giga-byte GA-EP35-DS3L
    Mushkin 4GB DDR2 800 @ 760MHZ 4-4-3-10 @ +0.3v
    SAPPHIRE 100245L Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16
    Seagate 160GB @ 7200rpm
    SB Audigy2
    Corsair 520HX
    Super Antec Lanboy
    Windows 7 Ultimate 64bit RTM
    Acer AL2216Wbd 22"

  3. #3
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Yes I've tried all that;system runs fine in any other config but dual-channel.Sorry thought I was clear on that.

  4. #4
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Bump?......... I noticed the beta BIOS has been out awhile now and many people are haveing RAM compatibility issues still and with good quility kits.
    Are they working on a BIOS fix for this?

  5. #5
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Yes, they are working on a New final BIOS as you see it is in Beta. I would go back to the latest Stable NON Beta if I was you and see how that goes.

    Was you using this beta F9a when all was working good? Have you tried re-seating the CPU?

  6. #6
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    I've been so desperate for an answer I've torn everything down and started over three times.I even bought a more powerful PSU because I thought my 4870 was drawing down too much power.

  7. #7
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    I have also experienced this issue. I tried everything with no luck. Last night I tried switching the RAM from banks 1 and 3 to 2 and 4. Ran Memtest86 all night (5 passes with no errors). So far all day today seems stable. I will be puting a heavier load on it tonight and see how it responds to that. I am so glad I am not the only one having this issue. I am an expierenced builder as well and thought I was losing my touch or just plain going nuts. Hope they put out a fix soon.

    **Update**
    So I tested a few games and all seemed fine. Went to grab a bite to eat and left the computer idle. By the time I got back it was froze up at the login screen. Seems my troubles continue.
    Last edited by yatyas; 01-09-2009 at 09:17 AM. Reason: Update

  8. #8
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Smeg
    Are you having issues running 2x2gig in single channel mode? I seem to only be able to get 1 running without freezing up randomly.

  9. #9
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Guys, please post links to your ram and the settings you are using and I will advise. Auto is often wrong, and some other default settings may be causing you issues >>>

    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..........................................
    
    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...........................................
    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...................:Auto <<< 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...................:Auto <<< 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

  10. #10
    Join Date
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    Default Re: GA-EP43-DS3L Won't Boot in Dual-channel

    Hi,

    since i am expiriencing the same problems i'd like to post my setup and BIOS values and hope some can guide me what to change. I am not able to run my RAM in DUAL Channel mode, memcheck throws errors over and over. Searching the internet for a solution i finally found this forum with these particular postingings.

    I'm not that familiar with all these RAM, BIOS, etc. settings, so perhaps someone can help me.

    I am running the GA-EP43-DS3L with an E8400 @ 3.00 GHz with 2x 1GB OCZ DDR2 PC2-9200 Reaper HPC Edition (OCZ Technology | Products | Memory | OCZ DDR2 PC2-9200 Reaper HPC Edition)

    My BIOS settings are the following (using the query form from Lsdmeasap).

    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster ...............: AUTO
    CPU Clock Ratio ..........................: 9x
    Fine CPU Clock Ratio.....................:.+0.0
    CPU Frequency ...........................: 3.00 GHz 333x9


    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control..................: Disabled
    CPU Host Frequency (Mhz) ............: 333
    PCI Express Frequency (Mhz) .........:Auto

    C.I.A.2 .................................:[Disabled]


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


    DRAM Performance Control
    Performance Enhance...................: turbo
    Extreme Memory Profile (X.M.P.).....: auto
    (G)MCH Frequency Latch...............: auto
    System Memory Multiplier ..............: auto
    Memory Frequency (Mhz) ..............: 1066
    DRAM Timing Selectable ................: [Manual]

    Standard Timing Control
    CAS Latency Time........................ 5
    tRCD ......................................... 5
    tRP'........................................... 5
    tRAS.......................................... 18

    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 (Auto)
    tWTR..........................................4 (Auto)
    tWR............................................ 8(Auto)
    tRFC...........................................56 (Auto)
    tRTP...........................................4 (Auto)
    Command Rate (CMD) ....................:0(Auto)

    Driving Strength Profiles
    Driving Strength ............................

    Channel A
    Static tRead Value.........................:6 (Auto)
    tRD Phase0 Adjustment...................:Auto <<< 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 (Auto)
    tRD Phase0 Adjustment...................:Auto <<< 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….……….........................: 1,25000V
    CPU Termination…..... 1.200V*.......: <<< Leave
    CPU PLL…………………....1.500V*.......: 1.550 AUTo

    CPU Referen.…………....0.755V*.......: what about here? set auto?

    CPU Reference2………,,0.800V*.......:

    MCH/ICH
    MCH Core…………….....1.100V...........: 1.100 auto
    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............: 2.100V
    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)................: Enabled
    C2/C2E State Support....................: Disabled
    x C4/C4E State Support..................: Disabled
    CPU Thermal Monitor 2(TM2) ...........: Enabled
    CPU EIST Function.........................: Enabled
    Virtualization Technology................: Disabled] Enabled if you use Vmware/Virtual PC


    Regards, oseeliger

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