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CPU vs RAM

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Am I right in thinking that with a E2140 @ FSB 333mhz, to get optimum performance the RAM would have to be 666mhz?

iirc the CPU is quad pumped to 1333mhz and the DDR2 RAM is dual channel to 1333mhz.

Is that correct or not?
 
a lot of motherboards will only allow the FSB to go up to but not faster than the memory. Just get memory that will be fast enough for your intended overclock.

e.g. 400 FSB -> get PC 6400 RAM (DDR2 800)

I don't think there is much of a benefit of running RAM in sync on Core 2 Duo systems.
 
Of the back of your thread E2140 vs E6600 I bought the E2140 and ballistix PC 5300.

I was looking to get about 2.6ghz from the cpu so 333x8 does me fine

I was wondering what the best setting for the ram would be, would it be leaving @ stock then, 667mhz.
 
Good stuff!

Depending on your cooling, I'd head towards 8 x 400 -> 3.2 GHz, the ballistix PC 5300 should be able 800 MHz DDR2 at stock timings.

Those e21x0 chips are capable of that.
 
Unfortunately I think I got a "duff" chip, I hit the FSB wall at 360 :(

The CPU was only a stop gap until something else tickles my fancy i.e native quad. I am still pleased with "only" a 65% or so increase lol :rolleyes:

Besides it was a HUGE increase from my Celeron D 341 2.9ghz, so I'm happy.
 
Can you not run ram at like 4:5 and other multiplyers?


\Like having a processor at 400 and the the ram at 500. or does this not show any performance boost over 1:1 at 400/400

so he could run his ram at 900mhz if he has his cpu at 360.
 
I tried the ram at iirc 5:8, FSB 333, RAM 533 and there was not any noticable difference.

I suppose there would be when encoding or something Memory intensive but not for general surfing e.t.c.

Or maybe it has sumat to do with the frequency between the CPU to NB and the NB to RAM, perhaps the data transfer rate has to be the same so the higher RAM frequency becomes irrelevant ????

Can someone clarify please.
 
Does anyone know why you can't run RAM slower than FSB like you always could on AMD and P4 systems? It's pretty much the only point of having a divider anyway.
 
Mattus said:
Does anyone know why you can't run RAM slower than FSB like you always could on AMD and P4 systems? It's pretty much the only point of having a divider anyway.

You can mate, but another use of the divider is to try and keep the RAM at its rated speed whilst pushing the fsb.

You don't need to run Ram at 1:1 with the bus with the new Intel Core2duos and Quads to get the best performance anymore
 
Mattus said:
My board (Gigabyte DS3) won't.. the minimum system memory multiplier is 2.00 (ie 1:1) so you can't run FSB faster than RAM, which is a little annoying!


Yeh i have the rev 3.3 and its the same.Cant run the ram on a divider. :(
 
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