1:1 vs 5:6

[ibitato]

Ok

At FSB 450x8, stable like rock.

What is better performance overall?

DDR2 1081 5.5.5.15 5:6 2.19v
DDR2 900 5.5.5.15 1:1 2.19v

No chance I could lower to CAS 4 al 900.

So 1:1 or 5:6 and why????

i've read so many things..........

[thideras]

Since the timings are the same and the RAM is running faster with the 5:6 ratio, it should theoretically be faster. There can be some exceptions where a motherboard doesn't like running certain ratios, but you can test for it.

Run a program like Sandra to compare.

[ibitato]

Since the timings are the same and the RAM is running faster with the 5:6 ratio, it should theoretically be faster. There can be some exceptions where a motherboard doesn't like running certain ratios, but you can test for it.

Run a program like Sandra to compare.

ratios are fine, my mobo is pretty stable.
The thing is , my RAM is 800 4.4.4.12 2.0v default (geIL Balck Dragon Series EVE One with heat sink). I've read ppl running at CAS 4 but I cannot make it. The far I got is FSB 420 4.4.4.12

also, ppl recommend tRD 6 for my config , CAS 4, but I find that 5 (only) works with CAS 5, nothing else.
Could it be the volts??

[thideras]

ratios are fine, my mobo is pretty stable.Well, the "issue" with the ratios won't cause instability, it usually just runs slower than normal. That is why I suggested testing just in case.


The thing is , my RAM is 800 4.4.4.12 2.0v default (geIL Balck Dragon Series EVE One with heat sink). I've read ppl running at CAS 4 but I cannot make it. The far I got is FSB 420 4.4.4.12 I'm confused by your comment here. "DDR2 800" with a ratio of 1:1 would need 400 fsb. Since you say "420" for the FSB, that would be 840 DDR2 speed, so you are actually running it faster than stock...

[ibitato]

Well, the "issue" with the ratios won't cause instability, it usually just runs slower than normal. That is why I suggested testing just in case.


I'm confused by your comment here. "DDR2 800" with a ratio of 1:1 would need 400 fsb. Since you say "420" for the FSB, that would be 840 DDR2 speed, so you are actually running it faster than stock...

sorry, what I ment is that up to 420 (aka 840) I could keep 4.4.4.12

/edit
downloading sandra.....

[ibitato]

Sandra is giving me better mem bandwith at 1080 and 900

Should I run any other test with sandra?

Should I try ddr2-1200 or its just me going stupid ??

[18 is # 1]

Should I try ddr2-1200 or its just me going stupid ??

Absolutely. Try everything and measure when you get there. The worst that will happen is BSOD/reset.

[ibitato]

Absolutely. Try everything and measure when you get there. The worst that will happen is BSOD/reset.

hmmmm. my ram just wouldnt take it, I did not even get to a BSOD
:)
I think the ram won't go that far ........

[18 is # 1]

hmmmm. my ram just wouldnt take it, I did not even get to a BSOD
:)
I think the ram won't go that far ........

Neither do I...but you can always try it. Only voltage will hurt the sticks.

[ibitato]

i tried 2.22v no luck, I guess i'll stick where I am. ::)

[El<(')>Maxi]

Sandra is giving me better mem bandwith at 1080 and 900

Should I run any other test with sandra?

Of course that's a big part of overclocking, running tests to verify stability and performance. Try Everest Cache & Memory benchmark, Super Pi 32M & 3DMark 06 CPU test.