P.Johnston

Okay...getting back to one of the central issues:

I've got my E4300 o/c'd to 3.0GHz (334x9), and had my G.SKILL 1GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5400) at 1:1 (334MHz) manually set to 4-4-4-12 at 2.00 volts. http://www.newegg.com/Product/Produc...82E16820231049

Today I thought, "why not go for it" and bumped the ram up to the next speed (PC-6400, if I remember)--no problems. However, instead of 1:1 ratio, I now have 4:5 ratio.

The bottom line is ratio is no indication of added/reduced performance, correct?

Thanks,
Paul

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Intel E4300 1.8GHz stock @ 3.20GHz / 3208.05 MHz (356.45 * 9)! ! !
Chaintech 8500GT @ 728/1146

http://valid.x86-secret.com/show_oc.php?id=216382

funkycasey

That means your memory is running faster than your FSB.... FSBRAM is the ration you are getting...and that's supposedly good from the info provided in this thread...

I just went into my bios and adjusted a few things...got a 3:4 going on now...

Ram is 327.3 (about 655MHz) and FSB is 245.5
Had to loosen the timings just a bit from 3-3-3-8 to 4-4-4-8...didn't bump the voltage up any...still stock 1.80v I don't think i want to mess with the volts on this Dell memory that i bought on sale, lol.

About to do a 3DMARK05 test and see if i get any performance changes worth mentioning

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24/7 3.36 Overclock
3.43 GHz shot

92% of teens have moved on to rap. If you are part of the 8% who still listen to real music, copy and paste this.

P.Johnston

As promised, here's my final overclock:

Summary:

E4300 @ 334x9 (3.0GHz)
G.Skill DDR2 667 (PC2 5400) 4-4-4-12 @ 836MHz (PC2 6400+) 4-4-4-12

So...any reason to worry about the Trc going up to 20?

__________________
Intel E4300 1.8GHz stock @ 3.20GHz / 3208.05 MHz (356.45 * 9)! ! !
Chaintech 8500GT @ 728/1146

http://valid.x86-secret.com/show_oc.php?id=216382

funkycasey

That's a real nice overclock

__________________
24/7 3.36 Overclock
3.43 GHz shot

92% of teens have moved on to rap. If you are part of the 8% who still listen to real music, copy and paste this.

P.Johnston

Danke. Couldn't have done it without the help of y'all.

-Paul

__________________
Intel E4300 1.8GHz stock @ 3.20GHz / 3208.05 MHz (356.45 * 9)! ! !
Chaintech 8500GT @ 728/1146

http://valid.x86-secret.com/show_oc.php?id=216382

pauldovi

Memory guide is going to get a big overhaul soon.

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FrankenPC

Please...I thought I had a weak grasp on timings. But, now I'm totally confused. Main reason? A completely different intermixing of terminology during conversations. If the terminology could be explained and nailed down, I could follow the logic much easier.

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Previous Member of Team Owners - 1st to hit 200k and 250K

Previous member of Rough Riders - 1st to hit 300k!!!

Adios everyone! I've been proud to be a member of Owners and Riders.

fast2406

Thank you all (especially Paul) for the explanation to how memory, latencies and bandwidth works .... I have a much clearer picture to what I should be looking for when I go to buy my new memory soon.

Once again, thank you .... this kind of thorough break-down explanation was one of the reasons why I joined this site

Cheers.

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*** it's in that place where I put that thing that time ***

Brianiak

Paul, this was a great post. Thanks a lot.

thealmightyone

Just a slight update to your guide. DDR2 runs at an actual speed of 200MHz, not 400MHz, and as it transfers 4 bits per clock, it's effective speed is 4x 200 = 800MHz.

DDR3 is 8 bits per clock, so divide effective speed by 8 to get actual speed.