Core2 Duo E4600

July 28, 2010 at 08:10:28
Specs: Windows 7
Wonder if anyone can help me out here. I would like to over clock my CPU its currently running at 2.4ghz, i have had it up to 3.4ghz but it was a unstable OC, browsing Windows etc was fine, but it would only hold out for about 20minutes while gaming, and system would shut down and reboot.

my specs are:

Intel Core2Duo 2.4 E4600
Asrock Turbotwins 2000

Could anyone point me in the right direction what i should be changing and the correct multiplier etc etc.

any more information needed just ask :) i am a amateur at over clocking lol

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July 28, 2010 at 08:28:46
Standard BIO's settings

Overclock mode

CPU Frequency [ 200 ]
PCIE Frequency [ 100 ]


Memory remap feature [ Disabled ]
Dram frequency [ auto ]
Flexibility option [ enabled ]

Standard memory info: 7-7-7-20-44-6-4-3-4
Dram tCL - 7
Dram tRCD - 7
Dram tRP - 7
Dram tRAS - 20
Dram RFC - auto
Dram tWR - auto
Dram tWTR - auto
Dram tRRD - auto
Dram RTP - auto

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July 28, 2010 at 08:32:57
u have a nice board (2000 fsb).
"4gb of ram" we need to know ram frequency.
I think we are going to use ratio 1:2 instead of 1:1 (i don't know if ddr3 1333 ram can run @ 400ddr).

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July 28, 2010 at 10:02:41
Ok i am using CPUZ

DDR3 OCZ3P13332G
Dram Frequency 291.4.mhz
FSB:Dram: 5:6

Timings Table
Frequency 380 Mhz
CAS# Latency 5.0
RAS# to CAS# 5
RAS# Precharge 5
tRAS 12
eRC 10
Voltage 1.50v

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July 28, 2010 at 10:08:08
Also my Graphics card is
Nvidia Geforce 9800GT
Core - 600MHz
Shaders 1500Mhz
Memory 700MHz
Size - 1025 MBytes
Type - GDDR3
Bus Width - 256 bits

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July 28, 2010 at 11:20:32
DDR3-1333 is capable of at least 667MHz frequency. You're running it at either 291.4MHz or 380MHz (not sure which) with a FSB:DRAM ratio of 5:6? That's about 1/2 as fast as it's capable of running.

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July 28, 2010 at 11:43:56
U should configure ram settings according to manufacture specs.

there are settings u need to set before overclocking
-lock pcie @ 100mhz
-lock pci @ 33.33mhz
-disable spread spectrum
-disable EIST aka speed step
-disable cpu enhanced halt CIE
-disable cia 2
*don't use any overclocking profiles*
c2d e4600 2.4ghz 800fsb cpu multi x12 and (1.162-1.312v).
We are going to use ratio 1:2. Set ram to run @ 800ddr aka 400mhz, pumb fsb to 333 (1333 fsb) and reduce cpu multi to 9, now ram should run @ 1333ddr aka 666mhz. Save settings and restart the system. If system unstable try to increase cpu freq slowly. Eg. 200-220, 220-260, if the system unstable to 260 pump cpu voltage (1.162-1.312v) make sure to stay in range, increase 0.1v each time until u reach 333 stable.
Use prime95 to stress cpu.

Nvidia 9800 oc settings
-use evga precision
-gpu clock 720mhz
-shader clock automatic increase when gpu clock increased
-memory clock 990mhz
-set gpu fan to run 100% all the time.

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July 28, 2010 at 19:08:33
Thanks very much Kuwese, works like a treat. is this your recommended amount to overclock too? or do you think it could do over 3ghz? :) everything seems stable, done stress tests, played COD MW2 online in high detail for over an hour and no problems :)

you the man, thanks people.

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July 29, 2010 at 00:36:20
That board is capable of 2000fsb (500 actual). U could still increase cpu freq but u will overclock ram (which i do not recommend). If u still want more try this, instead of (333 x 9) try (333 x 111).

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