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Thread: Trying to hit(OC) the limit E6500K - UD3P




  1. #1
    Join Date
    Aug 2009
    Posts
    17

    Default Trying to hit(OC) the limit E6500K - UD3P

    hey pplz , i just got my hands on an e6500k chip . and this prick giving me a hedeache. need some advise/help out here :S

    e6500k SLGYP R0
    P45-UD3P F10f
    2GB Corsair 8500c5
    x2 WD Caviar Green Raid 0
    Corsair HX750W
    Vista UL 32bit

    my BIOS:


    MB Intelligent Tweaker(M.I.T.)
    Robust Graphics Booster -------------- : [Auto]
    CPU Clock Ratio ---------------------- : [16.0x]
    Fine CPU Clock Ratio ----------------- : [0.5]
    CPU Frequency ---------------------: 4.50ghz (273x8)

    Clock Chip Control
    Standard Clock Control
    CPU Host Clock Control --------------- : [enabled]
    CPU Host Frequency (Mhz) --------------: [273Mhz]
    PCI Express Frequency (Mhz) ---------- : [100]

    C.I.A.2 ------------------------------ : [Disabled]

    Advanced Clock Control ------- [Press Enter]
    CPU Clock Drive ---------------------- : <<< 700
    PCI Express Clock Drive -------------- : <<< 700
    CPU Clock Skew (ps) ------------------ : <<<0
    MCH Clock Skew (ps) ------------------ : <<<0

    DRAM Performance Control
    Performance Enhance ------------------- : [disabled]
    Extreme Memory Profile --- (X.M.P.) --- : [Auto]
    (G)MCH Frequency Latch ---------------- : [Auto]
    System Memory Multiplier -------------- : [Auto]
    Memory Frequency (Mhz) ---------------- : [800]
    DRAM Timing Selectable ---------------- : [Manuel]

    Standard Timing Control
    CAS Latency Time -------- 5 ---------- : [5]
    tRCD ------------------- 5 ---------- : [5]
    tRP --------------------- 5 ---------- : [5]
    tRAS ------------------- 15 ---------- : [15]

    Advanced Timing Control
    tRRD ------------------- 3 ---------- : [8]
    tWTR ------------------- 3 ---------- : [Auto]
    tWR --------------------- 6 ---------- : [Auto]
    tRFC ------------------- 52 ---------- : [Auto]
    tRTP ------------------- 3 ---------- : [Auto]
    Command Rate (CMD) -------------------- : [Auto] <--- Auto or 0 is OK

    Driving Strength Profiles
    Driving Strength --------- :
    Channel A
    Static tRead Value --------------------- :7 [9]
    tRD Phase0 Adjustment ------------------ :0 [Auto]
    tRD Phase1 Adjustment ------------------ :0 [Auto]
    tRD Phase2 Adjustment ------------------ :0 [Auto]
    tRD Phase3 Adjustment ------------------ :0 [Auto]
    Trd2rd(Different Rank) ----------------- : 6[Auto]
    Twr2wr(Different Rank) ----------------- : 6[Auto]
    Twr2rd(Different Rank) ----------------- : 5[Auto]
    Trd2wr(Same/Diff Rank) ----------------- : 8[Auto]
    Dimm1 Clock Skew Control --------------- : [Auto] ps
    Dimm2 Clock Skew Control --------------- : [Auto] ps

    Channel B
    Static tRead Value --------------------- : 7[9]
    tRD Phase0 Adjustment ------------------ : 0[Auto]
    tRD Phase1 Adjustment ------------------ : 0[Auto]
    tRD Phase2 Adjustment ------------------ : 0[Auto]
    tRD Phase3 Adjustment ------------------ : 0[Auto]
    Trd2rd(Different Rank) ----------------- : 6[Auto]
    Twr2wr(Different Rank) ----------------- : 6[Auto]
    Twr2rd(Different Rank) ----------------- : 5[Auto]
    Trd2wr(Same/Diff Rank) ----------------- : 8[Auto]
    Dimm1 Clock Skew Control --------------- : [Auto] ps
    Dimm2 Clock Skew Control --------------- : [Auto] ps

    Motherboard Voltage Control
    CPU
    Voltage Types------------ Normal -------- Current -----

    Load-Line Calibration ----------------- : [Enaabled]
    CPU Vcore --------------- 1..2875 ---- : [1.700v]

    CPU Termination --------- 1.200V* ----- : [1.600v]
    CPU PLL ----------------- 1.500V* ----- : [1.710v]

    CPU Reference ----------- 0.755V* ----- : [0.1038v]

    MCH/ICH
    MCH Core ---------------- 1.100V ------- : [1.400v]
    MCH Reference ----------- 0.760V ------- : [0.1078v]
    MCH/DRAM Ref ------------ 0.900V ------ : [Auto]
    ICH I/O ----------------- 1.500V ------- : [1.500v]
    ICH Core ---------------- 1.100V ------- : [1.100v]
    DRAM
    DRAM Voltage ------------ 1.800V ------- : [2.100v]
    DRAM Termination -------- 0.900V ------- : [Auto]
    Channel A Reference ----- 0.900V ------- : [Auto]
    Channel B Reference ----- 0.900V ------- : [Auto]

    Advanced Settings
    Limit CPUID Max. to 3 ------------------ : [Disabled]
    No-Execute Memory Protect -------------- : [Enabled]
    CPU Enhanced Halt (C1E) ---------------- : [Disabled]
    C2/C2E State Support ------------------- : [Disabled]
    x C4/C4E State Support ----------------- : [Disabled]
    CPU Thermal Monitor 2 (TM2) ------------ : [Enabled]
    CPU EIST Function --------------------- : [Disabled]
    Virtualization Technology -------------- : [Disabled]

    Integrated Peripherals
    Legacy USB Storage Detect ------------- : [Disabled]</pre>
    Last edited by ob9; 11-04-2009 at 02:18 AM.
    Q6600
    GA-P45-UD3P
    2x HD4850
    Corair 8500C5D
    Corsair HX750w
    WD Caviar Green 500gb RAID0
    WD 120GB

  2. #2
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    Are you sure you did not misplaced the decimal point in CPU/MCH Reference?
    CPU Termination and PLL may be dangerousely high.
    What is the best you have done so far stable?

    EDIT: I see you have not began with optimized defaults loaded, and MCH Core is very high too.
    Last edited by Chike; 11-04-2009 at 02:18 AM.

  3. #3
    Join Date
    Apr 2009
    Location
    J'Habite En Angleterre
    Posts
    2,431

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    Enabling LLC may help with your Goal.

    Also using slightly less multi and a bit more FSB, or even the other way around could help.

    On the CPU Term and References front, many dual cores respond to lower MCH ref. Set CPU term to 1.2V, then set MCH ref to one notch lower than default (0.740V) and procede to test all CPU term values up to 1.4-1.45V. If no joy, again decrease CPU term to 1.2 and set MCH ref to 0.720V and repeat. Going down as far as 0.68V MCH ref @1.2VTT may be useful.

    IME, MCH Ref is a crucial setting. For me and this config, 0.760V MCH Ref fails Prime right away, 0.740V fails in ~20 min, 0.72V fails in 7 hours and all extracted archives are "corrupt". At 0.70V MCH @ 1.2 CPU term, then increasing CPU Term to 1.4V (leaving MCH Ref to scale) gives me all the stability I need.

    You may also get away wil less MCH core. Sometimes too much can lead to problems. You may well need that much, but for a mere 273 FSB, even with a 4.5GHz CPU, 1.24-1.36V should work out OK.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  4. #4
    Join Date
    Aug 2009
    Posts
    17

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    re you sure you did not misplaced the decimal point in CPU/MCH Reference?
    CPU Termination and PLL may be dangerousely high.
    What is the best you have done so far stable?

    EDIT: I see you have not began with optimized defaults loaded, and MCH Core is very high too.
    Well yeah i didn't really understand the CPU/MCH Ref thing ...
    CPU term max volt for , is 1.5v so i think 1.6v is kinda ok , maybe you right about the PLL ...
    my best so far (stable SPI/windows) is 273x16.5 = 4500 in BIOS ... but for some reason in CPUZ it shows me 4368 mhz , like it doesn't count the + 0.5x multiplier :S

    LLC is ON , tho i heard LLC for 45nm CPU's is bad , but i don't care is for the challenge.
    i'm startin to think my MOBO is **** because on my Q6600 all i could do is 479fsb ... maybe my board can't do much :( . but i'll try what's been told here thnx .

    what about MCH/DRAM Ref and CPU Ref ?
    what do u think i should put there ?
    Last edited by ob9; 11-04-2009 at 03:35 AM.
    Q6600
    GA-P45-UD3P
    2x HD4850
    Corair 8500C5D
    Corsair HX750w
    WD Caviar Green 500gb RAID0
    WD 120GB

  5. #5
    Join Date
    Aug 2009
    Posts
    17

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    nabling LLC may help with your Goal.

    Also using slightly less multi and a bit more FSB, or even the other way around could help.

    On the CPU Term and References front, many dual cores respond to lower MCH ref. Set CPU term to 1.2V, then set MCH ref to one notch lower than default (0.740V) and procede to test all CPU term values up to 1.4-1.45V. If no joy, again decrease CPU term to 1.2 and set MCH ref to 0.720V and repeat. Going down as far as 0.68V MCH ref @1.2VTT may be useful.

    IME, MCH Ref is a crucial setting. For me and this config, 0.760V MCH Ref fails Prime right away, 0.740V fails in ~20 min, 0.72V fails in 7 hours and all extracted archives are "corrupt". At 0.70V MCH @ 1.2 CPU term, then increasing CPU Term to 1.4V (leaving MCH Ref to scale) gives me all the stability I need.

    You may also get away wil less MCH core. Sometimes too much can lead to problems. You may well need that much, but for a mere 273 FSB, even with a 4.5GHz CPU, 1.24-1.36V should work out OK.
    What about CPU Reference. ? should be decreased or increase ?

    from what i read , MCH Ref. and CPU Ref should be 64% of the CPU Term . what means - if my CPU Term is 1.500v then 1.500-64%=0.960v CPU Ref and MCH Ref ...
    or i'm retard :o ?
    Q6600
    GA-P45-UD3P
    2x HD4850
    Corair 8500C5D
    Corsair HX750w
    WD Caviar Green 500gb RAID0
    WD 120GB

  6. #6
    Chike is offline Senior Member
    Join Date
    Jun 2009
    Location
    Israel
    Posts
    6,531

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    Quote Originally Posted by ob9 View Post
    What about CPU Reference. ? should be decreased or increase ?
    If the answer to that was constant it could have been done automatically. Both VTT and Vcore effects them

    Quote Originally Posted by ob9
    from what i read , MCH Ref. and CPU Ref should be 64% of the CPU Term . what means - if my CPU Term is 1.500v then 1.500-64%=0.960v CPU Ref and MCH Ref ...
    1.5 x 64%, or 1.5 - 1.5 x (1 - 64%), but your outcam was right so must have done it right.

  7. #7
    Join Date
    Aug 2009
    Posts
    17

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    well i give up ... all i manage to do is 4.5ghz and @ 1.8v ! and all screenies iv'e seen in google or HWBOT is with those high voltages .
    i tried this chip with my brother MOBO which is X48-DQ6 and still nothing.
    its a bull**** from Intel , too good to be true... like it said .
    my Q6600 can hit the 4ghz and my old e6300 1.8ghz can hit the 3.33ghz @ damn better volts than this crappy chip , don't fall for this trick of sales from Intel save your money :).
    Q6600
    GA-P45-UD3P
    2x HD4850
    Corair 8500C5D
    Corsair HX750w
    WD Caviar Green 500gb RAID0
    WD 120GB

  8. #8
    Join Date
    Apr 2009
    Location
    J'Habite En Angleterre
    Posts
    2,431

    Default Re: Trying to hit(OC) the limit E6500K - UD3P

    CPU and MCH ref are ~63% of VTT at stock, that's correct. When tuning refs you can change the % to gain stability. As I say, I found stability at ~58%.

    I've never had any success with changing CPU Ref on a dual core personally, but I'm sure others may have. It's not the first thing I'd change but I'd consider playing around with it.

    That CPU is more of a tweakers toy than a serious top quality unlocked CPU. It's a fun thing to play with and under extreme cooling can go high up on frequency. Even under air it remains quite cool. Also consider the possibility that you got a "not so good" one. As with all CPU's ther's natural variation.

    The chip was an experiment by Intel, which was the reason it only officially went on sale in The People's Republic of China.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

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