a8n-sli OC question

[mrscintilla]

Today, I tried a controlled OC on my memory. I upped the HTT to 300 (3x multiplier), and lower the CPU multipler to 6x, giving an effective 1800mhz cpu speed, stock for my athlon64 3000+. Then I put the memory divider to DDR266, therefore roughly making the memory running at 0.61*300 =183mhz, which is way below PC3200, stock speed for my hyperx valueram.

and #@#!?, no go at posting.

The machine is fine w/ HTT 270 (3x multiplier) and cpu 9x, and DDR266 (which is about 173mhz for memory).

This makes me wonder if a8n-sli has a PHYSICAL limit on FSB... The bios (1004) gives me options for higher fsbs. Bummmerrrrrrr.... any ideas about this bottleneck? What can I do to push my memory to about 200mhz, while giving a decedent CPU oc?

 

[intogamer]

Asus mobo has a limit of 300fsb try your luck with DFI

 

[mrscintilla]

intogamer, how do you know that? Any confirmations? And I love DFS too, I wish I had the $ to switch MBs just to get better OCs.

 

[GuitarDaddy]

Mine runs fine at 325mhz, I've seen HTT as high as 342mhz on this board.

Chipsets must be like CPU's in that some are better than others. Power supply also factors into it, overclocking the chipset increases the voltage draw of the mobo. I'm using a 550 watt PS with 30a on the 12v rail.

You can use "A64 tweaker" and set the divider to 150(DDR300), this is in between the DDR333 and DDR266 options in the ASUS bios. Using this divider you can go up to 280mhz HTT and you ram will stay under 210

You can also use A64 tweaker to set memory timings that aren't available in bios.
For instance it has CAS 1.5. If you are forced to run ram at less than the rated speed you can often tighten the timings below the rated timings. And on A64's timings seem to be more important than speed.