Gigabyte GA-EP45-DS4

[Choffa]

Hi i want to overclock my e8400 but when i set the CPU Host Frequency over 350 i cant boot.
Is there any settings i should change?
And also when i change DRAM Timing Selectable to manual it wont boot.

my computer:

• Corsair Dominator TWIN2X8500C5D 4096MB,DDR2,2x2GB(KIT),DHX,E.P.P, CL5-5-5-15-2T
• Corsair Powersupply 750W Black,ATX/EPS,140mm Fan, 8xSATA, SLI
• Gigabyte GA-EP45-DS4, P45, Socket-775,ATX, SP, 2xGbLAN, DDR2, 2xPCI-Ex(2.0)x16
• Intel Core™ 2 Duo E8400 3.0GHz, SocketLGA775, 6MB, 1333Mhz
• Samsung DVD±RW burner, SH-S223F, 22x,DVDRAM 12x, Black
• Samsung SpinPoint F1 750GB SATA232MB 7200RPM
• Sapphire Radeon HD 4870 512MB GDDR5,PCI-Express 2.0, 2xDVI/HDMI/HDCP

[Lsdmeasap]

Have you read the guides pinned here? If not you should so you can get to know BIOS's and ram timings a little better. Yes there are many settings that need to be changed such as disabled settings, voltages, and you need to set several things for 2x2gb ram to manually set things as well.

Would you like some settings or just some pointers? If you would like some suggested settings please let me know a CPU Speed you would like to run and I will post you a full table of settings

[Choffa]

It would be nice with some settings and i want a speed of 3.6 GHz
Thanks that was a quick reply

[Lsdmeasap]

Ya, you caught me in here early today! Usually not around till late

E8400 @ 3.6Ghz W/ 2x2GB ram @ 1066

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: [Auto]
CPU Clock Ratio ..........................: 9
Fine CPU Clock Ratio.....................:.0
CPU Frequency ...........................: 3.618Ghz


Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 402Mhz << Do not use 400 exact
PCI Express Frequency (Mhz) .........:Set to 100

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


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


DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [333] << You may be able to use 400. When changing this setting and trd (Static tRead Values) ONLY make these changes at that time, no other setting changes at the same time. So MCH strap changes, reboot, trd change and reboot, then the rest can all be done at once.

System Memory Multiplier ..............: 2.66 (if you do not see 2.66, you will need to change the above to one that you do see it with, they are connected)

Memory Frequency (Mhz) ..............: 1064Mhz
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................5
tRCD .........................................5
tRP'...........................................5
tRAS..........................................15/18

Use highest first below, then later tweak one at a time testing with memtest between each move

Advanced Timing Control
tRRD...........................................3-5
tWTR.......................................... (3-6) 8-12
tWR............................................(4-6) 8-14
tRFC...........................................52-62
tRTP...........................................4-6
Command Rate (CMD) ....................:2

Channel A
Static tRead Value.........................:7-10
tRD Phase0 Adjustment...................:<<< Leave for all below as well
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.........................:7-10
tRD Phase0 Adjustment...................:<<< Leave for all below as well
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
Voltage Type.………... Manual
CPU
CPU Vcore….……….........................: <<< you will have to test until you find out. 1.35 is a good starting point, you may need more or less as your board has a large vdroop so what you set it far less then what you get. Just set high and lower later. If it dont boot then you may need more
CPU Termination…..... 1.200V*.......: <<< 1.32-1.34
CPU PLL…………………....1.500V*.......: <<< 1.5-1.6
CPU Referen.…………....0.755V*.......: <<< .61% Of Vtt (Termination above)
CPU Reference2………,,0.800V*.......:<<< .67% Of Vtt (Termination above)

MCH/ICH
MCH Core…………….....1.100V...........: << 1.2-1.25
MCH Reference….…….0.800V...........; <<< Leave
MCH/DRAM Ref.…......0.900V...........: <<< Leave
ICH I/O……………….....1.550V............: <<< Leave
ICH Core…………...……1.100V............: <<< Leave

DRAM
DRAM Voltage ……....1.800V............: 2.00-2.1 << Set to amount on sticker of you ram

DRAM Termination .…0.900V............: <<< Leave
Channel A Reference 0.900V............: <<< Leave
Channel B Reference 0.900V............: <<< Leave

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]

[Choffa]

also i got another question. What program should i use to see my temps? cause real temp shows 10 degres c lower temps then everest.

[Choffa]

Nice thanks i will try these now :P

[Lsdmeasap]

RealTemp should be correct, both have changeable tjmax, which is why you see different temps. You do have to have the latest Everest to change it, but you will find it in there in preferences, hardware montioring (It is not there in older versions) Tjmax for 45Nm cpu's has not been released yet but most agree it is 95 or 100 >>>
[OCCP] TJMax for All - Overclock.net - Overclocking.net

You must also Calibrate Realtemp >>>
Real Temp - Documentation

[Choffa]

when i change the timming to manual the computer wont boot.

[Choffa]

What could be wrong?

[Lsdmeasap]

You must set the voltages, MCH and ram and CPU. The reboot and start on the rest.

If you are still having issues please post back exactly what you set that fails and I will advise you