Trying to hit(OC) the limit E6500K - UD3P

[ob9]

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]

[Chike]

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.

[Psycho101]

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.

[ob9]

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 ?

[ob9]

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 ?

[Chike]

Originally Posted by ob9

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

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.

[ob9]

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 :).

[Psycho101]

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.