Was an AMD oc-er before and this is the first time oc-ing Intel. Seems like 4ghz mission is completed today morning and finished stressing just now



Intel C2D E8400 E0 | Gigabyte EP45-UD3R Rev 1.1 | OCZ Reaper 1066 DDRII

For now will be running at this settings before attempting higher clockspeed.

For 4.0 - 4.1 ghz , 1.225v, for 4.2ghz, 1.2375 - 1.25.

4.1ghz -



4.2ghz -




I decided to go with 4.1ghz as it needed vcore below the VID.

Yeah sure, anyway this is my first time with Intel platform, will try to share everything I can. Before that, may I know your setting first ? See what we can do from there.

Your system quite similar to mine, ram, proc, mobo.

Robust Graphics Booster ...............: [Auto or Fast]
CPU Clock Ratio .......................: [ 9]
Fine CPU Clock Ratio...................: +0.0
CPU Frequency .........................: 4.05GHz

Clock Chip Control
Standard Clock Control
CPU Host Clock Control.................: [Enabled]
CPU Host Frequency (Mhz) ..............: 450Mhz
PCI Express Frequency (Mhz) ...........: 100

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

Advanced Clock Control [Press Enter]
CPU Clock Drive........................: 800mV
PCI Express Clock Drive................: 900mV
CPU Clock Skew (ps)....................: 0ps
MCH Clock Skew (ps)....................: 0ps

DRAM Performance Control
Performance Enhance....................: [STANDARD]
Extreme Memory Profile (X.M.P.)........: [Disabled]
(G)MCH Frequency Latch.................: Auto
System Memory Multiplier ..............: 2.00D, u might wanna try 2.40B too.
Memory Frequency (Mhz) ................: 900
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time.......................: 5
tRCD ..................................: 5
tRP'...................................: 5
tRAS...................................: 15


Advanced Timing Control
tRRD...................................: 3-4
tWTR...................................: 3-6
tWR....................................: 4-6
tRFC...................................: 52-54
tRTP...................................: 3-4
Command Rate (CMD) ....................: 2

Driving Strength Profiles
Driving Strength ......................: 1066

Channel A
Static tRead Value.....................: 8-9
tRD Phase0 Adjustment..................: [Auto]
tRD Phase1 Adjustment..................: [Auto]
tRD Phase2 Adjustment .................: [Auto]
tRD Phase3 Adjustment..................: [Auto]

Trd2rd(Different Rank).................: [Auto]
Twr2wr(Different Rank).................: [Auto]
Twr2rd(Different Rank).................: [Auto]
Trd2wr(Same/Diff Rank).................: [Auto]

Dimm1 Clock Skew Control...............: [Auto]
Dimm2 Clock Skew Control...............: [Auto]
DDR Write Training.....................: [Auto]

Channel B
Static tRead Value.....................: 8-9
tRD Phase0 Adjustment..................: [Auto]
tRD Phase1 Adjustment..................: [Auto]
tRD Phase2 Adjustment .................: [Auto]
tRD Phase3 Adjustment..................: [Auto]

Trd2rd(Different Rank).................: [Auto]
Twr2wr(Different Rank).................: [Auto]
Twr2rd(Different Rank).................: [Auto]
Trd2wr(Same/Diff Rank).................: [Auto]

Dimm1 Clock Skew Control...............: [Auto]
Dimm2 Clock Skew Control...............: [Auto]
DDR Write Training.....................: [Auto]

Motherboard Voltage Control
Voltage Type...........................: [Manual]

CPU---------------------Normal-----------Current

Load Line Calibration..................: [Disabled]
CPU Vcore...............1.25000V.......: Different chip needs different vcore tho.
CPU Termination.........1.200V.........: 1.275
CPU PLL.................1.500V.........: 1.54
CPU Reference...........0.760V.........: [Auto]

MCH/ICH
MCH Core................1.100V.........: 1.24
MCH Reference...........0.760V.........: [Auto]
MCH/DRAM Reference......0.900V.........: [Auto]
ICH I/O.................1.500V.........: 1.55
ICH Core................1.100V.........: 1.2

DRAM
DRAM Voltage............1.800V.........: 2.1V - I straight put 2.1v to avoid any instability issue by the ram.
DRAM Termination........0.900V.........: [Auto]
Channel A Reference.....0.900V.........: [Auto]
Channel B Reference.....0.900V.........: [Auto]

Keep us up to date will you ? And good luck !