RAM Issues

Discussion in 'PC Hardware' started by PAYMYRENT, Oct 8, 2014.

  1. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    Ok I built my machine back in Feb. Everything runs awesome! Except my ram! To me this is very odd - Sometimes I can change the timings and run the parts at their rated DDR3 1866 speeds other times I change the settings and Windows (or the Motherboard ???) rejects them and I have to let the board clock them down to 1333MHZ or 1600MHZ. - Which is against the point of me trying to get faster RAM? :p The board and the RAM both support a Dual Channel config.

    What am I doing wrong?

    My build:

    AMD FX 8350 at 4GHZ water cooled with Cooler Master Seidon 120V
    Gigabyte GA-990FXA-UD3 rev 4.0 Motherboard
    G.SKill Sniper Gaming Series RAM DDR3 1866 - 32GBS
    Kingston SSDNow v300 240gb SSD
    Western Digital Blue 2TB Sata 3 6.0Gbit\s
    Cooler Master V850 - 805W power supply - Modular
    ASUS Blu-Ray burner - 16D1HT
    Cooler Master HAF 932 Advanced Full Tower Case
    BitFenix Recon 5 channel Fan Controller
    2X Sapphire Tech Vapor-X R9 270X GPUs - Crossfire - 2GB GDDR5 256-bit Mem Interface
     
  2. Mr.X

    Mr.X MDL Guru

    Jul 14, 2013
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    #2 Mr.X, Oct 8, 2014
    Last edited: Oct 8, 2014
    Did you update BIOS/UEFI firmware already?
     
  3. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    Running the latest!
     
  4. Flipp3r

    Flipp3r MDL Expert

    Feb 11, 2009
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    I'm not familiar with the GA-990FXA-UD3 but just turning on xmp should be all you need to do.
    Are you overclocking the cpu? This affects the ram speed, so perhaps the ram gets clocked higher, fails post, then resets to 1333/1600...
    Just a thought...
     
  5. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    I do not overclock the CPU and I turn on XMP it posts it gets to loading windows and then windows crashes in the middle of the boot. so idk what I am doing wrong - even on a clean install with XMP and the timings changed to what the ram says it supports helps in the windows BSOD.
     
  6. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    Computer is so fast that it just dies basically and i do not have a pagefile so no mem dump :(
     
  7. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    all looks fine with the mem test. over the past 6 months ive done it like 10 times :p
     
  8. Flipp3r

    Flipp3r MDL Expert

    Feb 11, 2009
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    Have a look at your event log...
     
  9. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    Nothing about memory issues just crap about my failing FlashDrive lol
     
  10. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    pull the memory, write down what modules you have in what slots mark them if you need to.

    you might have your A's and B's mixed up if more than 2 sticks of ram, If not try using #1 slot and #3 or #2 and #4. You get the idea.

    Slot
    1 Match a
    2 Match b
    3 Match a
    4 Match b

    It shouldn't be (most of the time)
    Slot
    1 Match a
    2 Match a
    3 Match b
    4 Match b

    if nothing else, pulling them and putting them back in the same place still might solve the issue if they only need reseated.
     
  11. Flipp3r

    Flipp3r MDL Expert

    Feb 11, 2009
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    The bsods are always logged. Look in Windows Logs\System. Sort by Level & look at whats listed as Critical...
     
  12. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    Nope did not log! - I think it was because it was not in user but kernel mode very preboot like windows logo then death :p

    @EFA11

    This should not matter - All the RAM is the same model, make, and capacity.
     
  13. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    I always think the same thing, unfortunately some are not created as = as others. Just a suggestion :D
     
  14. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    LOL well I did this about a month ago anyways - nothing changed - I think I might RMA the RAM - G. SKill told me if it did not work just tell them and they will send a set that will run at or faster than the 1866 speed
     
  15. EFA11

    EFA11 Avatar Guru

    Oct 7, 2010
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    yeah best to rma and try another set if can. memtest never really tests the memory thoroughly imo anyway. Ive run memtest on faulty memory in the past, and the test was fine lol
     
  16. PAYMYRENT

    PAYMYRENT MDL Developer

    Jul 28, 2009
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    lol that is great!
     
  17. CHAD667

    CHAD667 MDL Novice

    Oct 7, 2014
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    I dont know why EFA11 says memtest is no good its the program i always use its never let me down. what can happen is you run memtest and it says ram is faulty when really the ram is just not compatible with the mb. i saw 2 possible solutions to your problem but i am prevented from posting links because i need to post 20 times which i find ridiculous this is my last post goodbye good luck. just google GA-990FXA-UD3 1866 and the tomshardware post check them
     
  18. CHAD667

    CHAD667 MDL Novice

    Oct 7, 2014
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    tomshardware.co.uk/answers/id-1851727/gskill-sniper-1866-run-1866-990fxa-ud3-rev.html
     
  19. smilem

    smilem MDL Novice

    Oct 18, 2014
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    memtest is great when it works :) Had a problem that memtest reported bad ram, then I updated bios and now memtest shows everything is fine. I wonder how many people sent their memory back due to this?