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Thread: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable




  1. #1
    Join Date
    Dec 2010
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    Default X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    As the title states, I have a new system with a X58A-UD5 Rev2 with 24GB of Crucial DDR3 (6x4GB) and Windows 7 is showing 24GB installed, 16GB usable. Looking at resource monitor it appears that 8GB are "hardware reserved". Looking at the BIOS it appears that the last two DIMMs aren't enabled, and if I start playing musical DIMMs with all 6 sticks I get the same result. If I pull two sticks out, then I get 16GB installed, 8GB usable.

    I've looked over some other posts on this forum and have tried adjust voltage and other settings, but to be honest I'm not well versed in BIOS tweaking.

    Any help would be much appreciated.

  2. #2
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    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    whats the rams rated voltage? you need to set dram voltage according to your ram,either 1.5 or 1.66v,then with 24gb you will need a huge amount of qpi/vtt voltage,so i would set that to atleast 1.38v and go from there,read you mb manual it will explain how to set the dram and qpi/vtt voltages
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  3. #3
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    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    wazza, thanks for the input.

    The rams rated voltage is 1.500v so I set that. I also set the qpi/vtt voltage to 1.395v and didn't see a change so I upped it to 1.555v. Still no change.

    Any other ideas?

  4. #4
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    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    i dont know 1.555 qpi/vtt should be more than enough,try testing each stick one by one in the first white ram slot from cpu socket,that way you will know if all the sticks are working,it will boot into windows with just one module installed
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  5. #5
    Join Date
    Dec 2010
    Location
    USA
    Posts
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    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    Just got back from testing each stick out and there is one that the MOBO doesn't recognize when it's installed by itself.

    Online with Crucial now to get a replacement stick.

  6. #6
    Join Date
    Aug 2009
    Location
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    Posts
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    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    you might have to rma the whole set,if they are a 24gb kit,atleast your getting somewhere with it now
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

  7. #7
    Join Date
    Dec 2010
    Location
    USA
    Posts
    4

    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    Yea, looks like I have to send the 3 stick set back. Oh well. No biggy. The system is seeing 20GB now with the single bad stick removed.

    Thanks for your help!

  8. #8
    Join Date
    Aug 2009
    Location
    Birmingham,Great Britain
    Posts
    9,250

    Default Re: X58A-UD5 Rev2 memory issues...... 24gb install 16gb usable

    anytime,lemme know how you get on with the replacement set
    Gigabyte z77x UP4-TH F11c Modded Bios
    Intel i7 3770k 24/7@4.8ghz 1.38v Turbo llc +0.165v dvid multithreading enabled
    Samsung Green(MV-3V4G3D/US) 8GB @2133mhz 9-10-10-21-1t 1.55v
    Thermalright Silver Arrow Cpu Cooler
    1xSamsung 840 pro 256 Gb SSD windows 8.1 pro 64bit
    1xSamsung f4 HD204UI 2tb hard drive Storage
    Powercolor 7970 3gb V3 @1150mhz core/1700mhz mem,1.150v Accelero aftermarket air cooler 55c max
    Razer Lycosa Keyboard
    Logitech X-530 5.1 Speakers
    Lite-On iHAS124-19 24x Sata DVDRW
    K-World Hybrid DVB-T 210SE Digital T.V Card
    L.G E2260V L.E.D 1920x1080 Monitor
    Xfx Pro 750w silver rated Psu 80+
    Fractal Arc Midi Case

    http://i38.tinypic.com/14myvfa.jpg x58 ud5 <=3.8ghz + 4.2ghz Overclock Template!!
    http://www.youtube.com/user/warren304#p/u Visit Me On Youtube

    Lots Of Gaming Videos With X58 Ud5 System And Gpu On My Youtube Channel!!
    Just Uploaded New Battlefield 4 Video!!!!!!!!!!!!!!!!!!!!!!

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