warning for those who are considering the asus cusl2

[kjue]

I bought an asus cusl2 and a celeron 2 600. I was hoping to get the celeron to 900, but I was still ready to accept the fact that getting the cel. all the way to 900 can be a little ambitious. Well, I was disappointed when my 600 couldn't even start at 900, but I was even more disappointed when I found out that I could not set the FSB to around 76-99 Mhz on the mobo. Well, technically, I could set the FSB to those speeds, but the pci multipier at those speeds will be 1/2. I end up having to settle for a FSB of 75, which gave the cpu a speed of a 675. You could set the pci multiplier to 1/3, but your FSB will have to be at least 100. So, if you have a cel. and you want to overclock it, you should first make sure that the chip can get to a FSB of 100 if you are considering getting this board.

 

[JWMiddleton]

Hi Kjue,

I have that board and I thought I had the same issue. I use the board with a PIII-700. My chip would not run at 133 MHz FSB, so I selected the 100:100:33 ratio option and cranked it up to 129/129/43. I could not believe that ASUS did not offer a 1/4 divider at 124 and above. I was PISSED and wrote a number of emails message to reviewers of the board complaining that they failed to mention this issue. If my chip and memory had worked at 133 MHz FSB and CAS2, it would not have been an issue.

Well, a few days after installing the board I noted with SISoft Sandera 2000 that the PCI bus was set to 33 MHz!!! So, the BIOS info was incorrect, or misleading. With this new info, I crossed my fingers and turn on DMA on my hard drive and rebooted. IT WORKED!!! Now, instead of taking 97% of my CPU to do a disk read it only took 3%!

Good luck!

 

[jzodda]

Are you sure about the PCI divide being 1/4? Sandra can only read what the bios tells it and the bios on this board lies about a lot of things like the temp

Unless the beta bios has changed that. I am going to do some testing to confirm what you have said. I am at 945 anyway, but I am bored

 

[han888]

now i am run at 125 fsb on my asus cusl2, the pci bus speed will be 41mhz, just hope asus will change the divider for 120 above
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p3-800E@1000mhz
asus cusl2
256 hyundai pc133
asus v7700

 

[Bartman39]

I noticed the same thing while running a 533a @ 125fsb the bios said one thing (41mhz PCI) and once in W98SE Sandra said it was at 31mhz I think there are some things built in that are not mentioned in the manual or on their site...

But as of now I am running a P3 700e @ 143fsb (1Ghz) and have no problems as far as I`m concerned the board rocks with a little tweaking and damn good processors installed... BTW these are air cooled only