Springdale Overclocking

[tabytha77]

I am curious how well PC3200 and PC3500 RAM is holding up at 1:1 FSB ratio setting with the new 865/875 chipsets. Most RAM reviews I have seen show CAS 2 modules topping out at 210-220 MHz, which doesn't leave a lot of overhead for 1:1 overclocking on a 865 board.

I would also like to see some benchmarks on overclocked P4C CPUs with identical FSB speeds but 1:1/3:2/5:4 FSB/RAM ratios. People get excited about overclocking their P4 2.4C up to 3.5 GHz, but with a 3:2 out-of-sinc ratio, I wonder if it's all that much faster in applications.

Another thought, for the extra price of CL 2 PC3500 or PC3700, you could just get a P4 2.8C or maybe 3.0 shortly.

 

[Tommelom]

I'm now playing around with my new Abit IS7 I865, 2.8 GHz cpu and Twinmos 3200 ram. On ratio 1:1 I got it up to 2.9 ghz. More than that and I got a lot of noise in the graphic in 3dmark. On ratio 5:4 I got it up to 3.05 ghz. more made it crash sadly. It increasd my score in 3dmark with about 1000 points. It should go higher than 218 fsb I now have. I have seen it up to 300, so why my system won't work with me I don't know.

 

[Crashman]

Look at it this way, if you overclock a 2.4C to 3.6GHz at 3:2, you get your 400MHz memory speed back, so it should perform similarly to a factory stock 3.6, whenever they get released.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

 

[Tommelom]

Yes, and on 250 fsb at 5:4 I too should get my memory-speed back, but at that speed I don't even get into windows no matter what volt I set.

 

[ZZSpaceman]

This novice is confused. 3600/12 = 300 MHz memory speed. How do you come up with a 400 MHz memory speed? BTW will a 2.4C clock to 3.6 GHz? Does this require an active cooling solution and a lot of luck?

ZZSpaceman

 

[phsstpok]

3600/12 = 300 Mhz?

Well, you are almost there. That just gives you the bus clock. With a ratio of 3:2 then memory is running at 300 * 2 / 3 = 200 Mhz (or 400 DDR).


<b>56K, slow and steady does not win the race on internet!</b>

 

[ZZSpaceman]

I gather that if I took the time to read the BIOS section of my mother board manual I would find the bus clock to memory clock ratio selection?

ZZSpaceman

 

[phsstpok]

Yeah, but who reads the manuals! LMAO!

I checked out the CPU database at <A HREF="http://www.overclockers.com" target="_new">www.overclockers.com</A> to see how far people have overclocked the 2.4 (800 Mhz) but there is only one entry. It is 3.677 Ghz but water cooled.

<b>56K, slow and steady does not win the race on internet!</b>