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Thread: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS




  1. #201
    Chike is offline Senior Member
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    @mad_user
    I don't understand, why you want to lower ram speed? Maybe I did not understand the question.
    It will be better if you create a new OC thread so we can review your settings and help you tweak your system for safe settings and optimal performance.
    Please provide(in the new thread) the information requested in steps 1-4 in this thread.

    And please.... don't be mad :-)

  2. #202
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    ok sorry about my pre-caffiene last post i was thinking that there might be some equalization with the d strapping giving the ram a 400 bus speed vs say a b strapping with the reduced bus @ 333 . but i have settled on this config of my bios to achieve a very usable for gaming 3.8 with 8 gig ddr2 800 oc'd to 1010 . fsb 420x9=3.8 ram strapped 240b
    vcore 1.368 ddr voltage 1.97 i have been to four gig but was unhappy with the need to drive the vcore to 1.408 or better the ram appears to be capable of 1066 but all this leads to one more question about the strapping choices . what if any advantages are there to choosing from the differing strappings? a b c or d ? d at first seems to offer the optimal choice but is only offered in 200d and 266d whereas a b and c offer lesser bus speeds
    forcing the ram into a less than 1 to 1 ratio. is there any advatage to the lesser multiplier because of the high 400 bus? i'm hoping this clarifies my just awoken attempt at communication .

  3. #203
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Damn I proofed it and still dropped the n from adva_N_tage in my last sentence???!

  4. #204

    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Quote Originally Posted by mad user View Post
    ok sorry about my pre-caffiene last post i was thinking that there might be some equalization with the d strapping giving the ram a 400 bus speed vs say a b strapping with the reduced bus @ 333 . but i have settled on this config of my bios to achieve a very usable for gaming 3.8 with 8 gig ddr2 800 oc'd to 1010 . fsb 420x9=3.8 ram strapped 240b
    vcore 1.368 ddr voltage 1.97 i have been to four gig but was unhappy with the need to drive the vcore to 1.408 or better the ram appears to be capable of 1066 but all this leads to one more question about the strapping choices . what if any advantages are there to choosing from the differing strappings? a b c or d ? d at first seems to offer the optimal choice but is only offered in 200d and 266d whereas a b and c offer lesser bus speeds
    forcing the ram into a less than 1 to 1 ratio. is there any advatage to the lesser multiplier because of the high 400 bus? i'm hoping this clarifies my just awoken attempt at communication .
    You "proof read" that? LOL, Ha Ha, etc.
    i7 3770K, 47X100= 4.7GHz at 1.33V, ASROCK Z77 Extreme4, 2 X 4GB Patriot Viper Black Maba DDR3 1600, GTX 590, 2 X Corsair Force 3 120GB SSDs in RAID 0, Barracuda SATA 7200.10 500GB, Barracuda SATA 7200.11 1000GB Back Ups, OCZ ZX 1250W, Z-5500s, LG Blu Ray Player/DVD Burner, Koolance CTR-CD12 Fan/Pump Controller, Windows 7 X64 Professional, HAF X. Vision Quest 24" WS LCD, Optoma H66 Projector
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  5. #205
    Chike is offline Senior Member
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    @mad_user
    The different straps multiplier are designed for specific starps based on standard DDR2 rates, 533,667,800. and 1066, with min of 1:1 and max of 1:2 FSB:DRAM clock. That does not mean they won't work at other FSB frequencies. If it works it's good enough.
    Up to 5:8 or 3:5 FSB:DRAM there will be gain in memory performance (not as much in real life use) so there no advantage of lowering the ram clock.

    You may try and use 2.50A multiplier with your current settings. If you manage to maintain the same tRD level or lower, memory performance will improve.

  6. #206
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Hey all, could someone tell me what Memtest86 v4.0 Test 5 errors means? Is it really memory, or memory controller problem. I tested both sticks individually in all slots on test 5 with no errors.

  7. #207
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Well first, try memtest4.1 as I have heard a few issues have been fixed.

    As for test 5, that and 7 are the most stressful ones, so heat it a big issue sometimes.

    Are you testing with test 5 by itself in a loop only and if so for how long/how many passes, or the normal test and it errors on 5 each time when it gets there

  8. #208
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Thanks for the reply Lsameasap... Here's the deal. One day last week I changed my heat sink to a Corsair H50 to test it's performance. I decided to play an on-line game for stressing and while doing so my screen would just go black for probably 10 seconds or more and then either minimize it's self for CTD. Weird right. Then as the problem advanced I would blue screen with an error code of OxC2(BAD_POOL_CALLER) in which I assumed had to deal with my ATI drivers since the above was happening.

    That helped somewhat but did not solve the problem so I decided to do stress testing with LinX, IBT, and P95. During testing it always failed on large FFT and so on. Anyway I somehow determined it was a memory problem and tested with Memtest86 v4.0.

    At first I just ran the default test one loop and there was about 15 - 20 errors on loop 5. Thats when I decided to test each stick in every slot with side cover off (optimized defaults) . No errors. I was thinking it not the memory... Then ran Memtest86 with all the ram and errors on test 5 but not as many. At this time i decided to reset CMOS and re-flash the memory. Long story short it still gave errors in test 5.

    I have ran Memtest86 v4.1 for 2 full default loops with no errors. But I think your right it was a heat problem and heres why. My memory fan started squealing after being shutdown for about 5 days so I took it out of the system. After putting it back in the squealing stopped after a while as well as the errors. I also ran a test 5 loop for 3 passes with no errors.

    I'm still not 100% sure it's correct now as I still fail P95. I have also read it possibly could be: power supply, motherboard, memory and or vid card. WHEW! sorry for the long post!

  9. #209
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Sounds like you need better airflow in your case then, and maybe some BIOS adjustments.

    Auto/stock may not be stable for your memory, so that may be the issue and you just need to set things properly is all

  10. #210
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    Default Re: Memory Timings Explained W/ Suggested Timings & Memset VS. BIOS

    Not really sure what I can do as far as better airflow. I already use 3 - 200mm fans -front, side as intake, and top exhaust. As well a 120mm in the bottom as intake, two fans as push/pull on the H50, the Corsair Memory fans and a 40mm fan on the north bridge.

    BTW this is on the system in my sig. I'll think I'll just re-visit the bios settings and redo all my over clock settings. FYI I am running the Q9550 @461x8.5 (3.92GHz) Memory @ 2.1 volts 5-5-5-15 4-4-6-52-2, 2.40B 1106MHz and Turbo.

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