X48 Rampage Formula Preview.

[Fritz_the_germ]

Great BIOS design although I don't understand why they didn't include tREF in the BIOS. Correct me if I'm wrong but didn't mikeyakame told us that DFI boards have tREF available?


I just had a quick look at the manual and I noticed something very important. A CPU Clock Skew Delay of 100ps is necessary for FSB > 450MHz.

That confirms my thoughts about the ASUS Rampage Formula. They never made the BIOS to do FSB > 450MHz. If they did we would have got CPU and NB Clock Skew from the very first BIOS release.


Thanks for the picture of your board and a Q9650@4.5GHz. I used it on the ASUS forum. I also complaint again to ASUS and told them to have a look at the picture and give us an explanation why this isn't possible on the ASUS Rampage Formula. Check it out on the forum.

I'll give them some time to come with a good explanation or a new BIOS that can give us these clocks. When they can't give an explanation or I still see no changes in the BIOS than I'm going to follow you and we can continue our discussions and have fun with our hardware. But no more in this thread and no more on the ASUS Rampage Formula forum.

O.K. I forgot to say something about the tREFs. Normaly the correct tREFs for a memory speed at 400 MHz (=DDR800 MHz ) are calculated this way: Refreshing 7800ps/ (1000/400 MHz)=3120T.
That means if you run a higher speed than 400 MHz (DDR=800 MHz) for example 600 MHz (=DDR1200 MHz) your tRFES should be 7800/(1000/600 MHz)=4680T.
The DFI BIOS call this option CH1/CH2 Clock Crossing Setting. You can choose between "More aggressive, aggressive, nominal, relaxed, more relaxed".

For some reason am I not able to post on the ASUS forum site anymore. Here is my post (meant to be on the ASUS forum site):
Alien-Grey,
Do you remember my argument with ASUS 8 month ago?
Nothing has been changed since. So I respect your patience but I think ASUS doesn´t care about our oc problems. That´s why I bought a DFI DK P45 and I am happy with it.
DFI takes the problems of their custumers seriously. Just look at the ASUS sweet talk down below:

"Thank you for contacting ASUS Customer Service.
My name is Lyn and it's my pleasure to help you with your problem.

I can give you some personal advice. But the overclocking issue is beyond our service. To overclock(RAM over 1200MHz), we cannot guard success for you. We cannot guard how far you can overclock. You need to try it yourself.


P.S. You can get the RAMs work at 1200MHz(O.C speed too). So, the motherboard and BIOS are OK.
Welcome to refer Troubleshooting & FAQ for ASUS products in ASUS website:
http://support.asus.com/troubleshoot...Language=en-us
http://support.asus.com/faq/faq.aspx?SLanguage=en-us

If having any problems, please don't hesitate to let me know. Let's discuss this
issue together.
Thank you for using ASUS products and enjoying ASUS services!

Lyn

ASUS Customer Service Center (Shanghai, China)

If you have any suggestions or complaints about our technical support service,
please e-mail your feedback to Manager_TMSS@asustek.com.cn. We will then
arrange for a specialist to work on your issue. Your suggestions and feedback are
most appreciated and allow us to serve you better".

How old is the 0902 bios? It was released in may 2009! Any other questions? No, thank you.

@eM,
I wouldn´t buy a X48 chip if I won´t use crossfire.