E8400 can't get to 4ghz

What ram is it? What are the voltages on the ram? What I am getting at is that your ram could be at fault.

http://www.newegg.com/Product/Prod [...] -_-Product

sorry, im using exact same ram, cept its the 4 gig pack

e8400 at 3.6 atm on a gigabyte ep45-ds3r and 4850

Early E8400 C0, did require more voltages than the later E8400 E0. Run CPUz and verify what revision you have.

What is your memory multiplier?

its 1.3 for my 3.6 that is 60 c on burn test, memory multipliers are 5 5 5 15 running at 2.1v with 2.00d

Also make sure you Pci-e bus is at 100mhz. And if that doesn't work try upping the NB voltages up a bit.

Try these


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)....................: ops
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 or yours may like 2.0B, one will let you set lower PL(static tRead)
Memory Frequency (Mhz) ..............: 800
DRAM Timing Selectable ................: [Manual]

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

Advanced Timing Control
tRRD...........................................Auto
tWTR..........................................Auto
tWR............................................Auto
tRFC...........................................52
tRTP...........................................Auto
Command Rate (CMD) ....................:2

Driving Strength Profiles
Driving Strength ............................Auto

Channel A
Static tRead Value.........................:Auto, note what this is and try lower later
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 ps
Dimm2 Clock Skew Control...............:Auto ps

Channel B
Static tRead Value.........................:Auto, note what this is and try lower later
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 ps
Dimm2 Clock Skew Control...............:Auto ps

Motherboard Voltage Control
.....LLC=Enabled
CPU Vcore….……….........................:1.4v not more than 1.4v especially if you have E0 steppping
CPU Termination…..... 1.200V*.......: 1.22v
CPU PLL…………………....1.500V*.......: Normal
CPU Referen.…………....0.760V*.......: Normal

MCH/ICH
MCH Core…………….....1.100V...........: 1.26
MCH Reference….…….0.760V...........; .74 or more likely .70 or .68, set this when VTT is 1.2v, then change VTT
MCH/DRAM Ref.…......0.900V...........: Auto
ICH I/O……………….....1.500V............: Normal
ICH Core…………...……1.100V............: Normal

DRAM
DRAM Voltage ……....1.800V............: 1.9v
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]

Something is not right check the board temps and the 12v lines because you should be getting better results than that. I got a cheap corsair 675 kit running well above 800 at 850 (425 physical) on just 2v 5,5,5,15 2cmt 26 bank cycle. Make sure the power vrm for the cpu isn't to hot (if it is you would know) and check the NB (north bridge) to if it to is very hot.