need help from all i865/i875 mobo users

gakkuken · Nov 7, 2003

I am very tempted to get a i865 / i875 mobo and take the advantage of dual ddr, agp 8x setup. Only problem is, i will be using the 2.0A 400mhz p4 chip... and 3:4 and 4:5 divider will be still important to me.

anyone currently using P4P800, IS7, NEO2 can help me to find out if those dividers exist in the bios or not? thanks so much guys!

6502kid · Nov 7, 2003

My P4P800 has memory speed choices of 400, 320 and 266,
which, I believe give you 1:1, 4:5 and 2:3 dividers....

batboy · Nov 7, 2003

Almost got it right... 400, 320 and 266 is the same as 1:1, 5:4 and 3:2 in that order on the Asus. The Abit IS7 has 1:1, 5:4 and 3:2 plus 4:5 and 3:4 too

useless666 · Nov 19, 2003

batboy said:
Almost got it right... 400, 320 and 266 is the same as 1:1, 5:4 and 3:2 in that order on the Asus. The Abit IS7 has 1:1, 5:4 and 3:2 plus 4:5 and 3:4 too

i wish i had 3:4 and 4:5 , only 1:1, 5:4 and 3:2

gakkuken · Nov 25, 2003

useless666 said:
i wish i had 3:4 and 4:5 , only 1:1, 5:4 and 3:2

so the abit is7 doesn't have 3:4 and 4:5?

larva · Nov 25, 2003

Yes, it has them, but you don't want to use them. Run the memory in dual channel, 1:1, set tight timings, and run a high level of GAT (like F1 or Street Racer). Getting the 3:4 or 4:5 ratio means deviating from the cpu strap 800fsb setting, which disables the GAT. The machine will go a lot slower in 3:4 or 4:5 than it does in 1:1. This is not a single channel 845 chipset, 865/875 chipsets are principally different in this respect. Run two sticks of ram in dual channel at 1:1 and the IS7 will blow away the BH7. If you only run one stick on the IS7 the BH7 may be better.

TC · Nov 25, 2003

Correct me if I'm wrong, but I was under the impression that the 865/875 chipsets only support 533fsb chips and higher?

useless666 · Nov 26, 2003

gakkuken said:
so the abit is7 doesn't have 3:4 and 4:5?

No, i can tell u this cuz o own one.

aikiotto · Nov 26, 2003

TC said:
Correct me if I'm wrong, but I was under the impression that the 865/875 chipsets only support 533fsb chips and higher?

Not in the Intel D865G Series , they support 400/533/800 FSBs , plus 266/333/400 Mhz for DDR.

Yours truly
Aiki

Xymurgy · Nov 26, 2003

You can change the NBStrap in order to have the 3:4 & 4:5 divider available.

need help from all i865/i875 mobo users

gakkuken

Member

6502kid

Member

batboy

Senior Moment

useless666

Registered

gakkuken

Member

larva

Inactive Moderator

TC

Senior Seti Addict

useless666

Registered

aikiotto

Registered

Xymurgy

Member

Similar threads