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    M17x - FSB:DRAM Ratio & CAS Latency

    Discussion in 'Alienware' started by Mandrake, Jul 27, 2009.

  1. The_Moo™

    The_Moo™ Here we go again.....

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    whadda i need to run for 1:1 ? :p
     
    The_Moo™, Aug 3, 2009
    #101
  2. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Santa Claus lives in Brazil! I'll be able to test this later on today after work.
     
    Last edited by a moderator: May 7, 2015
    Mandrake, Aug 3, 2009
    #102
  3. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Find a way to pump your FSB to 1600Mhz.
     
    Mandrake, Aug 3, 2009
    #103
  4. The_Moo™

    The_Moo™ Here we go again.....

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    i could do it in Ntune .....


    So mandrake i should set my Mem to 1066 :D

    Imma try it :p
     
    The_Moo™, Aug 3, 2009
    #104
  5. Scytus

    Scytus Notebook Deity

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    From 1066?

    not likely :p
     
    Scytus, Aug 3, 2009
    #105
  6. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Set the memory to 800. I wasn't able to get past 1480 and I can change my multiplier to accommodate the faster FSB. Let me know how high you get.
     
    Mandrake, Aug 3, 2009
    #106
  7. BIGX333

    BIGX333 Brazillian Overclocker

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    If you increase your FSB in ntune the divisor will stay the same so (99% sure...)... You need to use 1600 FSB but in BIOS :D
     
    BIGX333, Aug 3, 2009
    #107
  8. Quadzilla

    Quadzilla The eye is watching you

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    This is how my old Quadcore destkop used to run Linked and synced 1600 fsb 800 ram. had total stability this way only.
     
    Quadzilla, Aug 3, 2009
    #108
  9. cookinwitdiesel

    cookinwitdiesel Retired Bencher

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    @Quadzilla

    That would be with DDR2 ram. The number reported in CPU-Z will be same for DDR2 and DDR3 but for DDR3 just multiple it by 2 again to get the actual RAM frequency

    This is that 1:1 argument I was trying to make last week.

    FSB: DDR2: DDR3
    1066:533:1066
    1333:667:1333
    1600:800:1600

    I am pretty sure these are the right values for "linked" at those FSB's
     
    cookinwitdiesel, Aug 3, 2009
    #109
  10. BIGX333

    BIGX333 Brazillian Overclocker

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    No it's not scook... I already explained 3 times.

    DDR-3 and DDR-2 are both dual pumped.
     
    BIGX333, Aug 3, 2009
    #110
  11. cookinwitdiesel

    cookinwitdiesel Retired Bencher

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    That is why I referred to what CPU-Z will report vs what the ram actually runs at (for a given FSB). Them both being dual pumped is what is represented by CPU-Z reporting the ram frequencies as the same isn't it?

    I am just pointing out that at a given FSB, DDR3 will run twice the speed of DDR2 (while I think what you were saying is that DDR3 can run at same speed as DDR2 with only half the FSB = same thing? just different wording)

    (sorry if this double posts.....NBR is NOT doing well today....server wise)
     
    cookinwitdiesel, Aug 3, 2009
    #111
  12. BIGX333

    BIGX333 Brazillian Overclocker

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    DDR-3 modules have less internal clock but the BUS speed (of the ram, not Front Side Bus) will be the same of a DDR-2 module with twice the internal clock.

    CPU-Z reports the right clock and you don't need to do anything.

    DDR-3 533 would be 1:1 with 1066 FSB just as DDR-2 is.

    DDR-3 have twice the Bus speed but the modules have less clock compared with DDR-2 so basically it's the same :p
     
    BIGX333, Aug 3, 2009
    #112
  13. cookinwitdiesel

    cookinwitdiesel Retired Bencher

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    I see, a little confusing, but ok

    As you can see, I am still trying to understand this haha
     
    cookinwitdiesel, Aug 3, 2009
    #113
  14. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    So your saying there is a difference between pre and post Windows boot. When changing the FSB in NST you can see the dividers change in cpu-z but since that is a Windows program it should. So what's the difference?
     
    Mandrake, Aug 3, 2009
    #114
  15. BIGX333

    BIGX333 Brazillian Overclocker

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    What?, lol!
     
    BIGX333, Aug 3, 2009
    #115
  16. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    What? What?
     
    Mandrake, Aug 3, 2009
    #116
  17. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Tests were not encouraging. I used OCCT and the Crysis benchmark to test. Both these tests seem to fail quickly if it doesn't like the CPU OC.

    Keep in mind my default multiplier is 11.5.

    Clock: 3547.5 | Mult: 11x | FSB: 1290 | Memory: 1032 | Divisor: 4:5
    -no boot (OC failed error)

    Clock: 3547.5 | Mult: 11x | FSB: 1290 | Memory: 860 | Divisor: 2:3
    -BSOD during boot

    Clock: 3553 | Mult: 11x | FSB: 1292 | Memory: 807.5 | Divisor: 5:8
    -no ".5" option rounded down. BSOD during boot

    Clock: 3547.75 | Mult: 11.5x | FSB: 1234 | Memory: 987.2 (used 987) | Divisor: 4:5
    -Booted. OCCT failed immediately, Crysis failed immediately.

    Clock: 3550.625 | Mult: 11.5x | FSB: 1235 | Memory: 988 | Divisor: 4:5
    -Booted. OCCT failed immediately, Crysis failed immediately.

    Clock: 3553.5 | Mult: 11.5x | FSB: 1236 | Memory: 824 | Divisor: 2:3
    -Booted. OCCT failed immediately, Crysis failed immediately.

    Clock: 3549 | Mult: 12x | FSB: 1183 | Memory: 946.4 (used 946) | Divisor: 4:5
    -BSOD during boot

    Clock: 3552 | Mult: 12x | FSB: 1184 | Memory: 947.2 (947 used) | Divisor: 4:5
    -BSOD during boot

    Clock: 3555 | Mult: 12x | FSB: 1185 | Memory: 948 | Divisor: 4:5
    -BSOD during boot

    Clock: 3546.875 | Mult: 12.5x | FSB: 1135 | Memory: 908 | Divisor: 4:5
    -BSOD during boot

    Clock: 3552.25 | Mult: 13x | FSB: 1093 | Memory: 874.4 | Divisor: 4:5
    -BSOD during boot

    Clock: 3550.5 | Mult: 13.5x | FSB: 1052 | Memory: 1315 | Divisor: 5:4
    -BSOD during boot

    Clock: 3553.875 | Mult: 13.5x | FSB: 1053 | Memory: 842.4 (842 used) | Divisor: 4:5
    -BSOD during boot

    Clock: 3545.5 | Mult: 14x | FSB: 1013 | Memory: 810.4 (810 used)| Divisor: 4:5
    -BSOD during boot

    Clock: 3549 | Mult: 14x | FSB: 1014 | Memory: 811.2 (811 used) | Divisor: 4:5
    -BSOD during boot

    Clock: 3549 | Mult: 14x | FSB: 1014 | Memory: 1267.5 (1268 used) | Divisor: 5:4
    -BSOD during boot

    Clock: 3552.5 | Mult: 14x | FSB: 1015 | Memory: 812 | Divisor: 4:5
    -BSOD during boot

    Clock: 3545.25 | Mult: 14.5x | FSB: 978 | Memory: 1222.5 (1222 used)| Divisor: 5:4
    -BSOD during boot

    Clock: 3552.5 | Mult: 14.5x | FSB: 980 | Memory: 1225 | Divisor: 5:4
    -BSOD during boot

    Clock: 3547.5 | Mult: 15x | FSB: 946 | Memory: 1182.5 (used 1183)| Divisor: 5:4
    -BSOD during boot

    Clock: 3555 | Mult: 15x | FSB: 948 | Memory: 1185 | Divisor: 5:4
    -BSOD during boot

    Clock: 3549.5 | Mult: 15.5x | FSB: 916 | Memory: 1145 | Divisor: 5:4
    -BSOD during boot

    Clock: 3548 | Mult: 16x | FSB: 887 | Memory: 1330.5 (used 1331) | Divisor: 3:2
    -BSOD during boot

    Clock: 3552 | Mult: 16x | FSB: 888 | Memory: 1110 | Divisor: 5:4
    -BSOD during boot

    Clock: 3552 | Mult: 16x | FSB: 888 | Memory: 1332 | Divisor: 3:2
    -BSOD during boot
     
    Mandrake, Aug 3, 2009
    #117
  18. BIGX333

    BIGX333 Brazillian Overclocker

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    Looks like the processor doesn't like non default multiplier o_O .

    I'm wondering about more options... It may take some time :D

    EDIT: Can you try 3550 with 1:2 ? (11.5x multiplier). Just to check the difference.
     
    BIGX333, Aug 3, 2009
    #118
  19. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    As soon as I get my QX9300 I should be able to see if it a limitation of the proc. BTW the tests were done with the 1333 memory.
     
    Mandrake, Aug 3, 2009
    #119
  20. BIGX333

    BIGX333 Brazillian Overclocker

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    I'm curious if the more stability was due the lower memory clock or due the multiplier. Pretty interesting anyway :D
     
    BIGX333, Aug 3, 2009
    #120
  21. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    I'll try 3550 in a little bit. I know when I have 3.47 w/1:2 OCCT fails after 20 minutes and Crysis doesn't fail. Regular gaming and benchmarking seem to be stable at that speed also.
     
    Mandrake, Aug 3, 2009
    #121
  22. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    At 3550 w/ 1:2 Boots fine, OCCT fails almost immediately (lasted a few seconds longer) and Crysis fails immediately.
     
    Mandrake, Aug 3, 2009
    #122
  23. robin van berkel

    robin van berkel Notebook Guru

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    hi

    my cpu runs now on 3.06Ghz at 11.5x multiplier ddr3 at 1333mhz FSB 1066mhz

    if i set in bios on unlinkt ddr3 go on 1313mhz ?? why is that

    and even if i set FSB 1070ghz with multiplier of 11.5x cpu stil be 3.06ghz

    so what am doing wrong ? i wand to get cpu on 3.1Ghz because multiplier cant go higher or i get BSOD :( so i hope to get last mhz out my cpu with FSB

    hope you ppl can help me :D
     
    robin van berkel, Aug 6, 2009
    #123
  24. BIGX333

    BIGX333 Brazillian Overclocker

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    1070 x 11.5 is 3076 so... Have you tried 1080? 3105.
     
    BIGX333, Aug 6, 2009
    #124
  25. robin van berkel

    robin van berkel Notebook Guru

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    i have try it onlye it dont work

    i set clock mode on unlinked in bios en set FSB on 1080mhz and cpu stil 3.06ghz
     
    robin van berkel, Aug 6, 2009
    #125
  26. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    Where are you reading 3.06? The bios? Did you try seeing what reading you get from cpu-z?
     
    Mandrake, Aug 6, 2009
    #126
  27. robin van berkel

    robin van berkel Notebook Guru

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    yep it was in bios

    i got him now on 3.1ghz with FBS 1070 and DDR on 1350mhz ( CPU-z )
     
    robin van berkel, Aug 6, 2009
    #127
  28. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    1350 DRAM speed?
     
    Mandrake, Aug 6, 2009
    #128
  29. robin van berkel

    robin van berkel Notebook Guru

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    yep 2x 675mhz in CPU-z

    run now burn CPU progam and cpu is now 66c after 30min
     
    robin van berkel, Aug 6, 2009
    #129
  30. BIGX333

    BIGX333 Brazillian Overclocker

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    1350... r u using NST right? lol
     
    BIGX333, Aug 6, 2009
    #130
  31. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    You can't even do that in NST. I have no idea how he's doing it.
     
    Mandrake, Aug 6, 2009
    #131
  32. robin van berkel

    robin van berkel Notebook Guru

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    in bios i can set in over clock > clock mode > unlinked then i can set FSB and can set Mhz of DDR my DDR runs now on 1396Mgz and cpu 11.5x 1085FSB 3.12Ghz
     
    robin van berkel, Aug 6, 2009
    #132
  33. BIGX333

    BIGX333 Brazillian Overclocker

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    Yeah but the max in bios is 1333 lol
     
    BIGX333, Aug 6, 2009
    #133
  34. The_Moo™

    The_Moo™ Here we go again.....

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    yea i have tried to go higher ...
     
    The_Moo™, Aug 6, 2009
    #134
  35. The_Moo™

    The_Moo™ Here we go again.....

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    MOOOOO


    the new BIOS supports the ram to run higher then 1333 but not the FSB :(
     
    The_Moo™, Aug 6, 2009
    #135
  36. BIGX333

    BIGX333 Brazillian Overclocker

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    Damn aw... :D
     
    BIGX333, Aug 6, 2009
    #136
  37. The_Moo™

    The_Moo™ Here we go again.....

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    evidentally my RAM can't handle 1500 on the ram .....

    but it can handle 1400 :p
     
    The_Moo™, Aug 6, 2009
    #137
  38. BIGX333

    BIGX333 Brazillian Overclocker

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    DDR-2/3 don't like overclock...

    Good old days of DDR-1 glory :D . I miss my OCZ REV2 @ DDR-1 780 :D
     
    BIGX333, Aug 6, 2009
    #138
  39. The_Moo™

    The_Moo™ Here we go again.....

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    well my caps lock was blinking as my error code which is the same as when i left my CPU unlock (weird)

    the error codes on dell's site are messed up


    anyway Mandrake needs to try to 1333 ram to see what it can do
     
    The_Moo™, Aug 6, 2009
    #139
  40. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    So that's how. Kind of backwards.
     
    Mandrake, Aug 6, 2009
    #140
  41. The_Moo™

    The_Moo™ Here we go again.....

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    they don't want to allow to much overclocking ....
     
    The_Moo™, Aug 6, 2009
    #141
  42. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    I went back to the A00 bios when I switch procs.
     
    Mandrake, Aug 6, 2009
    #142
  43. The_Moo™

    The_Moo™ Here we go again.....

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    why ?

    the new BIOS OC'd quads better
     
    The_Moo™, Aug 6, 2009
    #143
  44. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    For testing comparisons with the x9100.
     
    Mandrake, Aug 6, 2009
    #144
  45. The_Moo™

    The_Moo™ Here we go again.....

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    O ok well update soon :p
     
    The_Moo™, Aug 6, 2009
    #145
  46. i8urbabi

    i8urbabi Notebook Enthusiast

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    K well i think someone deleted my thread about BIOS numbers and other system numbers so ill post here. Id like if someone could post max setting for all configurations of m17x. like with 1333mhz ram with a p8600. and any other lil tweaks or anything that people know. I cant do math. im a 2nd year college student and im still in elementary algebra ;)... sooo if we could save that math and just have timings/and or basically answers then im sure alot of people would be happy. Thankss
     
    i8urbabi, Aug 7, 2009
    #146
  47. The_Moo™

    The_Moo™ Here we go again.....

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    i already ansered you

    just run it @ 1333
    1333


    simple as that
     
    The_Moo™, Aug 7, 2009
    #147
  48. robin van berkel

    robin van berkel Notebook Guru

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    if i go to 1400mm DDR my CAS Latency gets very high is there way to set CAS Latency in bios ? dont wand to us ntunes
     
    robin van berkel, Aug 7, 2009
    #148
  49. BIGX333

    BIGX333 Brazillian Overclocker

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    No.

    1 2 3 4 5 1000 vai pra...
     
    BIGX333, Aug 7, 2009
    #149
  50. Mandrake

    Mandrake Notebook Nobel Laureate NBR Reviewer

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    another impressive feat.

    [​IMG]

    11-10-10-26
     
    Mandrake, Aug 11, 2009
    #150
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