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SR2 with Xeon X5650 (only 40GB ram visible out of 48GB)

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3DArtist
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2016/05/20 16:07:44 (permalink)
Hi,
 
I have swapped my 2x5620 Xeon`s for 2x5650.
Before I had 48GB ram visible after installation of 5650, 8GB are gone. I`m unable to get those 8GB recognized on defaults BIOS settings, while 5620 did just fine.
CPU-Z/EVGA E-LEET recognize  48GB ,but windows/bios won`t.
I did some overclocking after that.
Can anyone point me in the right direction how to get my RAM back?
Here are my screens:
 
 
 
3DArtist 
post edited by 3DArtist - 2016/05/20 21:10:18

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#1

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    AlienAndy
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    Re: SR2 with Xeon X5650 (only 40GB ram visible out of 48GB) 2016/05/22 05:34:07 (permalink)
    Check the CPU sockets for bent pins.
    #2
    cateno
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    Re: SR2 with Xeon X5650 (only 40GB ram visible out of 48GB) 2016/05/22 06:30:58 (permalink)
    reseat the cpu's ,
    check your voltage dim up 50 to 100 mv ( imc on 5650 need more volatge  i have this touvle with a  pair  of 5670 and just up voltage 50mv all memeory visible in bios and win )

    Z690 classified start build
     
    X299 DARK  7900X 7740x soon 7980X
    X299 APEX
    X299 rampage Extreme
     
    E762 W3520@4.2  E679 2600k
    E760 X980 
    E761 I920
    E770 I950
    and SR2's  and SRX's
    Z87 classified , MVIE built with 4770K
    Z97 classified , ftw Z97 ,  MFVII  only wait for gigabyte LN2 
    X99 series.... classified , FTW , RE5 , oc formula, profesional , X11 , soc force , msi gaming9ack

    X79 classified, dark and RIVE, RIVBE,, xtreme11
    and many classified a panel from EVGA  no just one sample

    and other  DFI giga etc  

    #3
    3DArtist
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    Re: SR2 with Xeon X5650 (only 40GB ram visible out of 48GB) 2016/05/23 05:49:06 (permalink)
    Thx for reply`s guys! I`ve tried to increase my Dim Vref voltage by 50-100mv, but it still didn`t work, I`ve also tried to increase my mem voltage till 1.8V but it also didn`t solve the problem, so now I`m back to 1.64 & 1.63V.
    Within few days I`m gonna reseat my cpu`s and try again.
     
    3DArtist 
    #4
    cateno
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    Re: SR2 with Xeon X5650 (only 40GB ram visible out of 48GB) 2016/05/23 10:35:33 (permalink)
    check only one cpu and verify if all memory on this socket is read by bios and  windows ,

    Z690 classified start build
     
    X299 DARK  7900X 7740x soon 7980X
    X299 APEX
    X299 rampage Extreme
     
    E762 W3520@4.2  E679 2600k
    E760 X980 
    E761 I920
    E770 I950
    and SR2's  and SRX's
    Z87 classified , MVIE built with 4770K
    Z97 classified , ftw Z97 ,  MFVII  only wait for gigabyte LN2 
    X99 series.... classified , FTW , RE5 , oc formula, profesional , X11 , soc force , msi gaming9ack

    X79 classified, dark and RIVE, RIVBE,, xtreme11
    and many classified a panel from EVGA  no just one sample

    and other  DFI giga etc  

    #5
    3DArtist
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    Re: SR2 with Xeon X5650 (only 40GB ram visible out of 48GB) 2016/05/26 03:56:31 (permalink)
    Hi guys :) 
    Thanks for all the replies :) 
    I`ve fixed it and running now full 48GB with overclock on :)
    Firstly I`ve disabled CPU0 and noticed that CPU1 displays only 16GB instead of 24GB, so during disassembling I`ve noticed that one of my CPU cooler fans pushing abit on a ram and it`s by 1-2mm off to a side compared to the rest, so I`ve reseated all cpu`s and memory next to a fan coolers, made some adjustments to a fan that it`s not pushing on the memeory. After that I`ve got 48GB working like a charm :)
    Thx for all the help!
    #6
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