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G. Skill RAM compatibility with ASUS mobo

Salutations,

I have an ASUS M5A99FX PRO R2.0 motherboard that I've tried to mate with a pair of G. SKILL Ripjaws X 8GB. The CAS Latency for these sticks is suppose to be rated at 8-8-8-24, however I'm getting that the CAS latency is up at 11. I bought this memory to get CAS 8.

I'm thinking this is a Mobo/RAM compatibility issue? Or could it be a bad pair of RAM?

The RAM does run at the rated frequency but not CAS.

Should I really be concerned about this?
10 answers Last reply Best Answer
More about skill ram compatibility asus mobo
  1. Dear pl confirm are you overclocking? This could be due to the RAM compatibility with mobo. . Also run CPU-Z and check what latencies are being shown there. Better update BIOS of the mobo
  2. This is the QVL from Asus on your mobo though I don't really buy this .....

    http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/M5_R20_Series_DRAM_QVL_1127.pdf
  3. You're at the mobo defaults, need to manually set the DRAM freq, base timings and voltage (and will prob need a little extra in the DRAM voltage with CL8 sticks i.e. if base voltage is 1.5 the try at 1.56 (are these 1600 sticks? What's the model number of the DRAM and what CPU
  4. EasyLover said:
    Dear pl confirm are you overclocking? This could be due to the RAM compatibility with mobo. . Also run CPU-Z and check what latencies are being shown there. Better update BIOS of the mobo


    CPU-Z is where I've gotten the info. BIOS is updated.
    CPU-Z states that the
    DRAM freq is @ 802.7 MHz
    ratio of 1:4
    CL 11
    tRCD 11
    tRP 11
    tRAS 28
    tRC 39
    I'm currently not overclocking. I tried Asus's Autoclock feature with TurboV EVO in their AI Suite, however haven't done any manual overclocking, as I'm newbish to overclocking. Not 100% but also remember CL of 11 when I was "auto-clocking" with TurboV

    Ai Suite even any good?
  5. EasyLover said:
    This is the QVL from Asus on your mobo though I don't really buy this .....

    http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/M5_R20_Series_DRAM_QVL_1127.pdf


    Anonymous said:
    You're at the mobo defaults, need to manually set the DRAM freq, base timings and voltage (and will prob need a little extra in the DRAM voltage with CL8 sticks i.e. if base voltage is 1.5 the try at 1.56 (are these 1600 sticks? What's the model number of the DRAM and what CPU

    Link to http://www.newegg.com/Product/Product.aspx?Item=N82E16820231445
    I'm using an AMD FX 6300
  6. Best answer
    SEA_Strong92 said:
    EasyLover said:
    Dear pl confirm are you overclocking? This could be due to the RAM compatibility with mobo. . Also run CPU-Z and check what latencies are being shown there. Better update BIOS of the mobo


    CPU-Z is where I've gotten the info. BIOS is updated.
    CPU-Z states that the
    DRAM freq is @ 802.7 MHz
    ratio of 1:4
    CL 11
    tRCD 11
    tRP 11
    tRAS 28
    tRC 39
    I'm currently not overclocking. I tried Asus's Autoclock feature with TurboV EVO in their AI Suite, however haven't done any manual overclocking, as I'm newbish to overclocking. Not 100% but also remember CL of 11 when I was "auto-clocking" with TurboV

    Ai Suite even any good?


    I'm not really into Ai Suite rather I'm doing it manually sort of guy. Ok definitely your mobo is setting RAM to its default. Pl enable XMP profile in BIOS settings and check the timings. Report back then pl.

    PS: RAMs are ok. No need to worry about them.
  7. EasyLover said:
    This is the QVL from Asus on your mobo though I don't really buy this .....

    http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/M5_R20_Series_DRAM_QVL_1127.pdf


    EasyLover said:
    SEA_Strong92 said:
    EasyLover said:
    Dear pl confirm are you overclocking? This could be due to the RAM compatibility with mobo. . Also run CPU-Z and check what latencies are being shown there. Better update BIOS of the mobo


    CPU-Z is where I've gotten the info. BIOS is updated.
    CPU-Z states that the
    DRAM freq is @ 802.7 MHz
    ratio of 1:4
    CL 11
    tRCD 11
    tRP 11
    tRAS 28
    tRC 39
    I'm currently not overclocking. I tried Asus's Autoclock feature with TurboV EVO in their AI Suite, however haven't done any manual overclocking, as I'm newbish to overclocking. Not 100% but also remember CL of 11 when I was "auto-clocking" with TurboV

    Ai Suite even any good?


    I'm not really into Ai Suite rather I'm doing it manually sort of guy. Ok definitely your mobo is setting RAM to its default. Pl enable XMP profile in BIOS settings and check the timings. Report back then pl.

    PS: RAMs are ok. No need to worry about them.


    BIOS settings are basically all auto, hence default. I really haven't had much time with the BIOS or this computer, brand new/first build but I realize I'm an idiot and can change auto to numbers haha XD. I went into CPUZ and saw SPD tab, are those the numbers you need to change in the BIOS?
  8. SEA_Strong92 said:
    EasyLover said:
    This is the QVL from Asus on your mobo though I don't really buy this .....

    http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/M5_R20_Series_DRAM_QVL_1127.pdf


    EasyLover said:
    SEA_Strong92 said:
    EasyLover said:
    Dear pl confirm are you overclocking? This could be due to the RAM compatibility with mobo. . Also run CPU-Z and check what latencies are being shown there. Better update BIOS of the mobo


    CPU-Z is where I've gotten the info. BIOS is updated.
    CPU-Z states that the
    DRAM freq is @ 802.7 MHz
    ratio of 1:4
    CL 11
    tRCD 11
    tRP 11
    tRAS 28
    tRC 39
    I'm currently not overclocking. I tried Asus's Autoclock feature with TurboV EVO in their AI Suite, however haven't done any manual overclocking, as I'm newbish to overclocking. Not 100% but also remember CL of 11 when I was "auto-clocking" with TurboV

    Ai Suite even any good?


    I'm not really into Ai Suite rather I'm doing it manually sort of guy. Ok definitely your mobo is setting RAM to its default. Pl enable XMP profile in BIOS settings and check the timings. Report back then pl.

    PS: RAMs are ok. No need to worry about them.


    BIOS settings are basically all auto, hence default. I really haven't had much time with the BIOS or this computer, brand new/first build but I realize I'm an idiot and can change auto to numbers haha XD. I went into CPUZ and saw SPD tab, are those the numbers you need to change in the BIOS?


    Pl restart your computer press Del or F2 or whatever key requirement appears on the screen. This will take you into the BIOS of your mobo. From there you'll have to find Memory options. In the Memory Profile, Select XMP Profile.
  9. Believe the M5A99FX Pro utilizes DOCP for OC profiles
  10. Hi their amd is docp intel is xmp ,its just termanology both do exactly same thing just called it diffent names to confuse us all!. personnaly i do not like asus s ai suite at all i have 88xm plus dont get me wrong asus make fantastic boards just the ai suite i think can be very confusing,trying to make things easier sometimes and i think maybe in this case makes overclocking more confusing for people new to overclocking . ive found that i cant set all perameters when set to manual only by setting to docp can i change the timmings! and then not the tRC setting. is their any independant software i can use too replace ai suite. i remeber years ago i had an ABIT board and there overclocking software was so simple too use it just worked they even made a temp lcd you could plug into a usb so you could monitior temps when in apps running.also with ai suite turn of EPU setting it interfers with the whole overclock
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