Overclocking an E2140

[Moonpie2]

Hi dudes.

This has probably been asked a billion times before but without a search feature..... I dunno

To overclock an E2140, my chum said I just need to up the FSB and leave the multiplier alone, is this true ?
The mobo is a Gigabyte P35C DS3R.

Ta !!

 

[Chris Beard]

Yes, this is true. Please up the FSB in small incriments and test for stability and temps often.

 

[Moonpie2]

Come on, where's the fun in that ?
Heheh
(I know I know )

Just one thing, is the E2140

A) 200FSB 8x multiplier
B) 800FSB 2x multiplier

Different places I look say sifferent things

 

[Chris Beard]

200FSB on the board 800FSB on the chip. With intels the FSB is quad pumped - which is a clever way of making the FSB 4x as fast from the view of the chip. A little like DDR managed to use 2x the FSB.

 

[feriso]

Come on, where's the fun in that ?
Heheh
(I know I know )

Just one thing, is the E2140

A) 200FSB 8x multiplier
B) 800FSB 2x multiplier

Different places I look say sifferent things

'Tis A,

The 800 FSB is just 200 'quad-pumped' to give 800 effective.

 

[Moonpie2]

Ahhh ok, cheers.

I look forwards to hitting at least 312fsb then

Cheers

 

[alexakasloth]

How did you get on Moonpie2? I've just ordered this mobo and cpu for a friend of mine.

 

[Moonpie2]

Really well actually.
The 200FSBx8 = 1.6ghz has now become 370FSBx8 = 2.96ghz

Its only the memory holding me back now, I believe the CPU can go MUCH further (in the right mobo)
My memory is 667mhz and I can't get it past 740mhz without instability setting in.

Still, I can't complain. 3ghz from a £45 CPU is not too shabby
(oh and you might need a good heatsink)

 

[alexakasloth]

Nice one

I take it your memory is PC2-5300?

 

[Moonpie2]

Indeed it is.
Although people keep banging on about this Crucial Balistix 5300 memory that you can push up to about 800+ mhz

(I didn't get that but I wish I did )

 

[dovey]

What voltage you giving the mem?

 

[Moonpie2]

Off the top of my head I think I tried an extra 0.2v but got no benefit and with no heatspreaders I didn't want to crank it up higher and keep it high

 

[str]

Really well actually.
The 200FSBx8 = 1.6ghz has now become 370FSBx8 = 2.96ghz

Its only the memory holding me back now, I believe the CPU can go MUCH further (in the right mobo)
My memory is 667mhz and I can't get it past 740mhz without instability setting in.

Still, I can't complain. 3ghz from a £45 CPU is not too shabby
(oh and you might need a good heatsink)

Isn't there a lower memory option on the Gigabyte P35C DS3R? For 1:1 at 370 FSB with a E2140 the lowest memory option should be DDR2-555 which if it's available you can use for testing how far your CPU can actually go.

 

[Moonpie2]

There's a weird secret menu that can allow you to manually set your timings, but 2x is the lowest memory multiplier you can have.

If you know of another secret option, I'd love to hear about it

 

[alexakasloth]

Can I just ask what voltage you gave the CPU @ 3ghz?

 

[RaiderX]

loosen the timings on the memory to 5-5-5-15, if it already is try 6-6-6-18, thats what i used to get my crucial value PC2-5300 to 920MHz, didnt notice any performance loss, only gain

 

[Moonpie2]

Kept it at stock

That mobo is a bit weird as it doesn't tell you what its set at.
You can choose "normal" or +0.1 +0.2 etc...
It never says what normal is.


As for my menory.
I have...
Corsair 2GB DDR2 Value Select PC5300C5 Dual Channel Kit (2x1GB) (VS2GBKIT667D2)
I may give those timings a go and see if I can get to 920mhz too.

That would potentially give me a 3.6ghz CPU

 

[RaiderX]

Kept it at stock

That mobo is a bit weird as it doesn't tell you what its set at.
You can choose "normal" or +0.1 +0.2 etc...
It never says what normal is.


As for my menory.
I have...
Corsair 2GB DDR2 Value Select PC5300C5 Dual Channel Kit (2x1GB) (VS2GBKIT667D2)
I may give those timings a go and see if I can get to 920mhz too.

That would potentially give me a 3.6ghz CPU

normal is always 1.8 as that is the default for DDR2