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Overclocking E7400

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April 16, 2009 3:14:03 PM

I was looking to overclock my E7400 2.8ghz to a solid 3.6ghz. As far as overclocking goes I do not know ANYTHING. I was curious if there are any 'simple' explanations on how to overclock my PC. I have read a LOT on how to overclock but it all gets jumbled together when reading a 7 page post. If anyone knows how to and cares to explain or knows a simple site please reply.

Things about my cpu you should probably know are:
-CPU: (Sckt775)Intel(R) Core(TM) 2 Duo E7400 CPU @ 2.8GHz 1066FSB 3MB L2 Cache 64-bit
-Ventilated very well, extra fans and liquid cooling will making overclock heat issues null.
-GA-EP45T-UD3P Intel P45 Express CrossFireX Chipset LGA775 FSB1600 DDR3/1600 Mainboard
-MEMORY: 4GB (2GBx2) PC1333 DDR3 PC3 10666 Dual Channel Memory
-POWERSUPPLY: 680 Watts Power Supplies

More about : overclocking e7400

April 16, 2009 3:25:24 PM

put the FSB up in 15mhz increments until the system becomes unstable in games. then up the vcore 0.05v until it becomes stable within a 1.375v limit. if it doesn't become stable then lower the FSB in 5mhz increments until stable.
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April 28, 2009 3:35:10 AM

Helloworld_98 said:
put the FSB up in 15mhz increments until the system becomes unstable in games. then up the vcore 0.05v until it becomes stable within a 1.375v limit. if it doesn't become stable then lower the FSB in 5mhz increments until stable.




I'm looking for the same help...been looking al over the web and I haven't tried to Overclock before. I can't seem to find the CPU FSB setting in my BIOS to go from 266 to 333. The multiplier will change but it's already at 10.5 and 266 for 2.8mhz. The FSB says 1066 and my E7400 is rated at 1066, I think. Not sure what to do next. Thanks.
April 29, 2009 5:42:42 AM

i also have intel e7400 running stable at 3.5ghz with 2 sticks of geil value ram 800mhz on an asus p5kpl am/ps board at stock voltage on an asus triton 70 hsf and playing crysis it posts only 45C and that's cool for me. i set the fsb to 333mhz and lowered the ram to 667mhz so that my ram would not be bent too much. with 1066mhz ram am pretty sure to clock my e7400 easy to 4ghz with this cheap asus mobo.
April 30, 2009 3:44:22 AM

I've got mine FSB to 300mhz and didn't change voltage. Temps still low(around 40C). I'm going to try 333mhz and see what happens. I haven't changed my RAM settings yet. Not sure how to hard to push the RAM. Vista's killed my FPS and I'm trying to get them back.
April 30, 2009 3:53:03 AM

Do not just use games to test this! Download a stress test program, such as Prime 95, and run that for 8 or so hours (make sure to enable Round Off Checking while using it: Advanced > Round Off Checking).

If this gives you any errors then your system isn't stable, and will crash more often, write corrupted data, etc
June 6, 2009 7:21:56 PM

I got the e7400 up to 3.60GHz on the ASUS P5KPL-CM. Idle CPU temp is 27C and load is 49C on stock heatsink/fan. I noticed on CPU-Z that the Multiplyer jumps between 6 and 10.5. I am assuming that this is a built in feature to save energy while the PC is idling. FSB is set at 343, I am using cheap corsair DDR2 800 and underclocked it to 667, everything else is set to Auto. The P5KPL-CM is a very easy motherboard to overclock with and the FSB on the E7400 can be brought up to amazing speeds. It is a sweet, cheap little combo.
June 7, 2009 12:15:28 AM

kyeana said:
Do not just use games to test this! Download a stress test program, such as Prime 95, and run that for 8 or so hours (make sure to enable Round Off Checking while using it: Advanced > Round Off Checking).

If this gives you any errors then your system isn't stable, and will crash more often, write corrupted data, etc


+1. Use Prime95/Orthos or OCCT to stress test the CPU.
June 7, 2009 12:16:09 AM

XtremePower said:
I got the e7400 up to 3.60GHz on the ASUS P5KPL-CM. Idle CPU temp is 27C and load is 49C on stock heatsink/fan. I noticed on CPU-Z that the Multiplyer jumps between 6 and 10.5. I am assuming that this is a built in feature to save energy while the PC is idling. FSB is set at 343, I am using cheap corsair DDR2 800 and underclocked it to 667, everything else is set to Auto. The P5KPL-CM is a very easy motherboard to overclock with and the FSB on the E7400 can be brought up to amazing speeds. It is a sweet, cheap little combo.


Yes....I think its called Intel SpeedStep.
August 1, 2009 11:57:50 PM

XtremePower said:
I got the e7400 up to 3.60GHz on the ASUS P5KPL-CM. Idle CPU temp is 27C and load is 49C on stock heatsink/fan. I noticed on CPU-Z that the Multiplyer jumps between 6 and 10.5. I am assuming that this is a built in feature to save energy while the PC is idling. FSB is set at 343, I am using cheap corsair DDR2 800 and underclocked it to 667, everything else is set to Auto. The P5KPL-CM is a very easy motherboard to overclock with and the FSB on the E7400 can be brought up to amazing speeds. It is a sweet, cheap little combo.


Why did you underclock it to 667?
How high is your vcore? NB?
I dont know much about fsb's and i want to learn more.
August 19, 2009 7:23:41 PM

XtremePower said:
I got the e7400 up to 3.60GHz on the ASUS P5KPL-CM. Idle CPU temp is 27C and load is 49C on stock heatsink/fan. I noticed on CPU-Z that the Multiplyer jumps between 6 and 10.5. I am assuming that this is a built in feature to save energy while the PC is idling. FSB is set at 343, I am using cheap corsair DDR2 800 and underclocked it to 667, everything else is set to Auto. The P5KPL-CM is a very easy motherboard to overclock with and the FSB on the E7400 can be brought up to amazing speeds. It is a sweet, cheap little combo.



Almost exactly the same...

343 FSB / 3.63 Ghz speed shown

But... I kept RAM (Corsair Dominator 1066) at 800 underclocked setting. Also, disabled the features that slow the processor and reduce the FBS when idle.
December 13, 2011 4:02:45 PM

I'm trying to overclock the same cpu and i'm new to this but have reviewed a bit on changing it in the bios.
I go to my bios but i can't seem to find an option to up my fsb or multiplier. I can only alter my voltage, and it gives me a choice of 3 settings :( 
What should i do?
a c 197 K Overclocking
a c 172 à CPUs
December 15, 2011 3:15:18 PM

B-rolin, what kind of motherboard?

Sick,

Please do not post your email address in a open forum. We will use the forums to reply to each other. If you wish to contact an individual, you can click on the green envelope to send a Private Message (PM).

On to the overclocking ...
This should be your first stop.
Core2 Overclocking Guide (generic guide based on an Asus motherboard)
http://www.tomshardware.co.uk/forum/259899-11-core-over...

This is what will really help you.
Shadow's Gigabyte motherboard OC guide:
http://www.tomshardware.co.uk/forum/page-245679_11_0.ht...
It's for an EP35-DS3L but all the Gigabyte Core2 BIOS's are similar.

Go through the guides. Then take your core voltage off Auto and set your memory voltage to factory recommended values. Change the System Memory Multiplier from AUTO to 4.0. Then when you increase the FSB, the memory clock will rise in in proportion with it. At an FSB of 266 MHz, your memory clock should be at 1066 MHz.

Keep your vcore under 1.45 volts and your load temps under 70 C.

You should be able to reach at least 3.5 GHz. The limiting factor will be your motherboard.


March 12, 2012 8:43:13 PM

I also have the same processor but according to alot of people my board dosent support overclocking

My pc is a HP DC5800 board 450W PSU

I just want to OC it to 3Ghz

Thanks
Bud
a b K Overclocking
a b à CPUs
March 12, 2012 9:26:05 PM

HP= locked Bios and overclocking is limited to application in windows only. There is only one program out there with any level of modern support and it is called SetFSB but I don't like it because it is not free.
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