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Thread: GA-EP45-UD3P - Bad Yellow RAM Slot




  1. #1
    Join Date
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    Default GA-EP45-UD3P - Bad Yellow RAM Slot

    Whenever I run Memtest with a DIMM in the second yellow RAM slot, I get hundreds of errors in a few minutes. This happens with both yellow slots filled, and with just the second slot filled.

    Both DIMMs have generated zero errors when tested individually in the first yellow slot, and zero errors when tested together in the two orange slots.

    I do not expect ever to need to use all four slots, and so I am inclined to simply keep the board. Am I making a mistake? Is there reason to suspect the problem with one slot means I might have more problems elsewhere? If so, how do I test for same?

    Thanks
    MOBO - GIGABYTE GA-EP45-UD3P v1.6, FB Bios
    RAM - G.SKILL(2 x 2GB) DDR2 1066 (F2-8500CL5D)
    CPU - Intel Core 2 Duo E8500 Wolfdale 3.16GHz (currently at 450 x 9 w/ ~31C Idle and 60C @ Full Load) - Zalman 9700 cooler
    GPU - GIGABYTE GV-R485OC-1GH Radeon HD (no OC) Zalman VF2000 cooler (27C idle)
    HDs - OCZ 60G SSD boot drive - WD Caviar Black - WDC WD1001FALS-00J7B1 - 1 TB; Maxtor 6L200S0 (200G) (Both SATA)
    DVD-ROMs - Plextor PX-880SA - (SATA Burners)(2)
    Sound - Omega HT Claro via Monsoon Speakers
    PSU - CORSAIR CMPSU-520HX 520W
    CASE - Antec 300 (Scythe Fans)
    Windows 7 64bit - Home Premium

  2. #2
    Acebmxer's Avatar
    Acebmxer is offline Gigabyte Elite
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    which rev of the board do you have 1.0,1.1,1.6. 1.6 rev is know to have issues getting memory to work. It could be as simple as a few bios tweaks or it could be bad slot. Post back with which rev. you have and copy your bios settings down following a template that you can find from the link in my sig along with which bios version you are using. If you have rev 1.6 board read think link as this user had trouble getting his ram to work then had trouble getting his ram to work at rated spd. g-skill-2x2gb-1066mhz-f2-8500cl5d-4gbpk-finally-working-1066-stable
    Main Rig
    Gigabyte z87x-OC
    Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
    G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
    Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
    Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
    HiS ATI HD 6950
    Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
    Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
    Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port2
    Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
    CORSAIR CMPSU-850TX PSU
    Swiftech MCP655-B Pump
    EK Supremacy Cpu Block
    Swiftech Mcres Micro Rev 2 Reservoir
    Black Ice GTX Xtreme 360 Radiator





  3. #3
    Join Date
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    I have Rev 1.6 and I've updated the BIOS in just the last few minutes.

    I am not sure I follow your suggestion, however. As nearly as I can tell (I've been building for a long time but am new to this mobo) my RAM is stable at 1066. Each stick tested individually showed zero errors after eight hours of MemTest. In dual mode, I get zero errors after eight hours if I use the orange slots.

    Also, I've run Prime95 off of the UBCD for well over eight hours, and I've run OCCT for an hour in Vista Home Premium, all without problems. This leads me to think my system is fairly stable.

    The only way I have found to generate errors is to stick a DIMM in the second yellow slot. MemTest then throws off hundreds of errors in minutes, and I get the occasional BSOD in Windows without trying very hard at all.

    All of this tells me it is the slot, and not the settings nor the memory. But like I said, I am new to this board. What am I missing?
    MOBO - GIGABYTE GA-EP45-UD3P v1.6, FB Bios
    RAM - G.SKILL(2 x 2GB) DDR2 1066 (F2-8500CL5D)
    CPU - Intel Core 2 Duo E8500 Wolfdale 3.16GHz (currently at 450 x 9 w/ ~31C Idle and 60C @ Full Load) - Zalman 9700 cooler
    GPU - GIGABYTE GV-R485OC-1GH Radeon HD (no OC) Zalman VF2000 cooler (27C idle)
    HDs - OCZ 60G SSD boot drive - WD Caviar Black - WDC WD1001FALS-00J7B1 - 1 TB; Maxtor 6L200S0 (200G) (Both SATA)
    DVD-ROMs - Plextor PX-880SA - (SATA Burners)(2)
    Sound - Omega HT Claro via Monsoon Speakers
    PSU - CORSAIR CMPSU-520HX 520W
    CASE - Antec 300 (Scythe Fans)
    Windows 7 64bit - Home Premium

  4. #4
    Acebmxer's Avatar
    Acebmxer is offline Gigabyte Elite
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    As I suggested follow the link in my sig and post your current bios settings to see what you are using. 1.2 Mch core voltage is usually the default for 2x2g ram sticks some need up to 1.26 to get stable when using 2x2g sticks. With Rev 1.6 boards people have found out lowering it was needed to get 2x2g sticks stable somewhere around 1.0-1.6.

    If you running auto voltage settings the bios might be having trouble setting these correctly.

    Everything thing you said seems to be ok but the fact you can run either stick in either slot just not together sounds like a bios setting is off. If you said you could run either stick in only slot 0 and not slot 3 then you would have a bad board. You could also try running your ram in slots 1-4 and see if that works.
    Main Rig
    Gigabyte z87x-OC
    Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
    G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
    Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
    Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
    HiS ATI HD 6950
    Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
    Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
    Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port2
    Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
    CORSAIR CMPSU-850TX PSU
    Swiftech MCP655-B Pump
    EK Supremacy Cpu Block
    Swiftech Mcres Micro Rev 2 Reservoir
    Black Ice GTX Xtreme 360 Radiator





  5. #5
    Join Date
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    I don't think I am making myself clear. Let's call the slot nearest the CPU Yellow1. We have this:

    Yellow1
    Orange1
    Yellow2
    Orange2

    All of the following configurations test error free for eight hours or more with MemTest 3.6 running at bootup:

    Yellow1 - DIMM #1
    Orange1 - Empty
    Yellow2 - Empty
    Orange2 - Empty

    Yellow1 - DIMM #2
    Orange1 - Empty
    Yellow2 - Empty
    Orange2 - Empty

    Yellow1 - Empty
    Orange1 - DIMM #1
    Yellow2 - Empty
    Orange2 - DIMM #2

    By contrast, all of the following produce hundreds of MemTest 3.6 errors in five minutes or less.

    Yellow1 - Empty
    Orange1 - Empty
    Yellow2 - DIMM#1
    Orange2 - Empty

    Yellow1 - Empty
    Orange1 - Empty
    Yellow2 - DIMM#2
    Orange2 - Empty

    Yellow1 - DIMM #1
    Orange1 - Empty
    Yellow2 - DIMM #2
    Orange2 - Empty

    I think the pattern is pretty clear. If I put something in Yellow #2, I get massive MemTest Errors. If I leave Yellow#2 empty, I get none.

    In Windows, if I have something in Yellow #2, I can get a BSOD by doing as little as navigating IE7 to a complex web page, or opening multiple tabs. If Yellow #2 is empty, Windows is completely stable. I have not tried any tweaking of my own yet, but simply loading the optimized defaults in BIOS followed by running ET6 in easy mode has given me a system that will OC to 3.7Ghz and pass the OCCT one hour torture test.

    I don't want to get sidetracked on what is wrong with ET6. It will be uninstalled soon enough and I will tweak things the right way. The point I am trying to make is that this system is quite stable, even without tweaking, except when I put something into Yellow#2. The same voltage and other BIOS settings that work fine in single mode with Yellow#1, and work fine in dual mode with Orange#1 and Orange#2, goes crazy with errors the minute I put something into Yellow#2.

    I do not see how these results can be explained in any way other than a defective slot #2. Bad BIOS settings cannot produce errors in a single slot, can they?
    MOBO - GIGABYTE GA-EP45-UD3P v1.6, FB Bios
    RAM - G.SKILL(2 x 2GB) DDR2 1066 (F2-8500CL5D)
    CPU - Intel Core 2 Duo E8500 Wolfdale 3.16GHz (currently at 450 x 9 w/ ~31C Idle and 60C @ Full Load) - Zalman 9700 cooler
    GPU - GIGABYTE GV-R485OC-1GH Radeon HD (no OC) Zalman VF2000 cooler (27C idle)
    HDs - OCZ 60G SSD boot drive - WD Caviar Black - WDC WD1001FALS-00J7B1 - 1 TB; Maxtor 6L200S0 (200G) (Both SATA)
    DVD-ROMs - Plextor PX-880SA - (SATA Burners)(2)
    Sound - Omega HT Claro via Monsoon Speakers
    PSU - CORSAIR CMPSU-520HX 520W
    CASE - Antec 300 (Scythe Fans)
    Windows 7 64bit - Home Premium

  6. #6
    Chike is offline Senior Member
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    I think you were pretty clear in the first post, and you know what you are doing.
    Sure keeping a defective board is up to you, and you never know, things may get even worse.
    If you got it from a store near by that would replace it quickly I'd say replace it, otherwise you have 3 years warrenty, you'd be able to replace it in the future.

    As for other problems that may exist or may develop I don't think anyone can give you an answer.

  7. #7
    Reggie is offline Junior Member
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    MCH / ICH MCH Core ........1.1volts ......<< auto if 2 X 1GB memory.

    if 2 x 2GB memory, try 1.2 -1.24 volts or so.

  8. #8
    Join Date
    Sep 2009
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    I bought the board from NewEgg, and I am outside of the 30-day return period (this has been my slowest build ever - life has a way of interrupting my geeky games...). Thus, if I do return it, I am looking at doing an RMA. I am sure Gigabyte will treat me right if I go that route, but even the best RMA takes more time than I would like to spend, especially since I long ago disposed of the packaging.

    I think I am just gonna keep the board, and do my due diligence on tweak settings as I go along. This board and this RAM have something of a reputation for not playing nice together, but so far, they seem pretty stable to me, so long as I avoid Yellow#2.
    MOBO - GIGABYTE GA-EP45-UD3P v1.6, FB Bios
    RAM - G.SKILL(2 x 2GB) DDR2 1066 (F2-8500CL5D)
    CPU - Intel Core 2 Duo E8500 Wolfdale 3.16GHz (currently at 450 x 9 w/ ~31C Idle and 60C @ Full Load) - Zalman 9700 cooler
    GPU - GIGABYTE GV-R485OC-1GH Radeon HD (no OC) Zalman VF2000 cooler (27C idle)
    HDs - OCZ 60G SSD boot drive - WD Caviar Black - WDC WD1001FALS-00J7B1 - 1 TB; Maxtor 6L200S0 (200G) (Both SATA)
    DVD-ROMs - Plextor PX-880SA - (SATA Burners)(2)
    Sound - Omega HT Claro via Monsoon Speakers
    PSU - CORSAIR CMPSU-520HX 520W
    CASE - Antec 300 (Scythe Fans)
    Windows 7 64bit - Home Premium

  9. #9
    Chike is offline Senior Member
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    Default Re: GA-EP45-UD3P - Bad Yellow RAM Slot

    Some are using them happily, however you never know if G.Skill is always using the same chips or same quality of chips.

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