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Thread: weird problem with gigabyte P67A-UD4 B3 REV. 1.1




  1. #1
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    Default weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    i recently built a sandy bridge system using these 2 sets of 8gb gskill memory - F3-12800CL9D-8GBRL and F3-12800CL9D-8GBXL. bios says they are running at the rated 1600 via XMP profile 1 but CPU-Z and AIDA64 both say one set is running at 1600 and one set at 1333. XMP shows as enabled and dual channel in CPU-Z. I am currently stress testing with prime95 and have had zero errors for over an hour so far. has anybody ever experienced this? system specs are in signature. thanx
    Cooler master HAF932, Dell 2408WFP, Gigabyte P67A-UD4 B3 REV. 1.1, Intel core I7 2600K@ 4GHZ, XIGMATEK SD-1283 Gaia, Intel X25-M G2 160GB, 16GB DDR3 1600 Gskill Ripjaws ,XFX radeon HD6950, Pioneer BDR-205, Samsung SH-S243N 24X DVD-RW, western digital black 2TB, Antec TruePower 850 watt, windows 7 ultimate SP1 X64

  2. #2
    Chike is offline Senior Member
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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    If you are looking at the SPD it doesn't show what speed they run at.
    In CPU-Z it's the memory tab that does.

    EDIT: please post(attach) a CPU-Z text report (CPU-Z -> About tab -> Save Report (.TXT))

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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    ok here is the attachment
    Attached Files Attached Files
    Cooler master HAF932, Dell 2408WFP, Gigabyte P67A-UD4 B3 REV. 1.1, Intel core I7 2600K@ 4GHZ, XIGMATEK SD-1283 Gaia, Intel X25-M G2 160GB, 16GB DDR3 1600 Gskill Ripjaws ,XFX radeon HD6950, Pioneer BDR-205, Samsung SH-S243N 24X DVD-RW, western digital black 2TB, Antec TruePower 850 watt, windows 7 ultimate SP1 X64

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    Chike is offline Senior Member
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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    Memory runs at DDR-1600(900MHz clock).
    It may be better for stability to use each set in the same channel (e.g. one in slots 1 & 2, and the other slost 3 & 4)

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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    Quote Originally Posted by Chike View Post
    Memory runs at DDR-1600(900MHz clock). It may be better for stability to use each set in the same channel (e.g. one in slots 1 & 2, and the other slost 3 & 4)
    the manual says slots 1 and 3 and 2 and 4 for matching sets correct?
    Cooler master HAF932, Dell 2408WFP, Gigabyte P67A-UD4 B3 REV. 1.1, Intel core I7 2600K@ 4GHZ, XIGMATEK SD-1283 Gaia, Intel X25-M G2 160GB, 16GB DDR3 1600 Gskill Ripjaws ,XFX radeon HD6950, Pioneer BDR-205, Samsung SH-S243N 24X DVD-RW, western digital black 2TB, Antec TruePower 850 watt, windows 7 ultimate SP1 X64

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    Chike is offline Senior Member
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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
    memory of the same capacity, brand, speed, and chips be used for optimum performance.
    Unfortunately you don't have match sticks.
    For instanse, the BXL modules need 162ns tRFC at DDR-1600 while the BRL modules only need 110ns. Each channel has it's own controller so populating each channel with the same RAM is the better option.

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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    Quote Originally Posted by Chike View Post
    Unfortunately you don't have match sticks. For instanse, the BXL modules need 162ns tRFC at DDR-1600 while the BRL modules only need 110ns. Each channel has it's own controller so populating each channel with the same RAM is the better option.
    ok, i will try it
    Cooler master HAF932, Dell 2408WFP, Gigabyte P67A-UD4 B3 REV. 1.1, Intel core I7 2600K@ 4GHZ, XIGMATEK SD-1283 Gaia, Intel X25-M G2 160GB, 16GB DDR3 1600 Gskill Ripjaws ,XFX radeon HD6950, Pioneer BDR-205, Samsung SH-S243N 24X DVD-RW, western digital black 2TB, Antec TruePower 850 watt, windows 7 ultimate SP1 X64

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    Chike is offline Senior Member
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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    Check channel advaced timings after you do to see if there any difference, you might need to set it manually if the BIOS is not smart enough to do it.

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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    Quote Originally Posted by Chike View Post
    Check channel advaced timings after you do to see if there any difference, you might need to set it manually if the BIOS is not smart enough to do it.
    i checked in bios, all the timings match and everything says 1600. i think the software is on crack
    Cooler master HAF932, Dell 2408WFP, Gigabyte P67A-UD4 B3 REV. 1.1, Intel core I7 2600K@ 4GHZ, XIGMATEK SD-1283 Gaia, Intel X25-M G2 160GB, 16GB DDR3 1600 Gskill Ripjaws ,XFX radeon HD6950, Pioneer BDR-205, Samsung SH-S243N 24X DVD-RW, western digital black 2TB, Antec TruePower 850 watt, windows 7 ultimate SP1 X64

  10. #10
    Chike is offline Senior Member
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    Default Re: weird problem with gigabyte P67A-UD4 B3 REV. 1.1

    I emant channel settings, specifically tRFC.
    The software did show 1600:
    Northbridge Intel Sandy Bridge rev. 09
    Southbridge Intel P67 rev. B3
    Graphic Interface PCI-Express
    PCI-E Link Width x16
    PCI-E Max Link Width x16
    Memory Type DDR3
    Memory Size 16384 MBytes
    Channels Dual
    Memory Frequency 802.4 MHz (1:6)
    CAS# latency (CL) 9.0
    RAS# to CAS# delay (tRCD) 9
    RAS# Precharge (tRP) 9
    Cycle Time (tRAS) 24
    Command Rate (CR) 2T
    MCHBAR I/O Base address 0x0FED10000
    MCHBAR I/O Size 19456

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