Two questions re: ram and SATA

Korporativ

Member
Dec 29, 2001
160
2
81
Rescently got a new board. I'm not used to the new bios settings yet though. one of the options is SATA DMA Transfer... this defaults to disabled... why? I would think DMA would be a good thing to have on on a SATA drive. I have enabled it and can't tell if it made much of a difference or not, any input from others?

Also, nvtune keeps telling me i'm only using 64-bit ram but that the motherboard is capable of using 128-bit ram. I was under the impression that the 64 but ram got turned into 128-bit ram when you ran it dual-channel. Does this mean that my ram is, infact not running in dual channel? I"ve not seen much DDR ram that is listed as 128 bit on places like newegg. Anyone? Would like to know how to make sure its running the ram dual-channel in the firstplace.

Lastly i'm using coarsair PC3200 ram... rated at 400FSB. Why in my bios does it keep listing the DDR clock at 166? It should be 200 so that its 200x2 for the DDR to reach a 400FSB, otherwise its only a 332 FSB.

Final question is this... what is this 2T and 1T stuff? I just went in and changed it to 1T as someone explained it to me... poorly I assume. THey said 2T meant it got one transfer every 2 clock cycles and 1T means it gets 1 transfer every clock cycle. This seems counterintuitive to what I know abougt DDR ram.

DDR is supposed to get 2 transfers per clock cycle, one at the rise of the clock and one at the fall of the clock. Can anyone elaborate?

Thanks!
Korporativ
 

Korporativ

Member
Dec 29, 2001
160
2
81
not entirely shameless bump...

Considering selling my 6800 AGP card on e-bay and buying a PCI-e version so I can get an NForce4 chipset. I'm just kinda tenative because this BFG 6800OC came with GDDR3 which technically it should only have GDDR I think, and all pipelines unlock to 16x6 without any artifacting. I can also overclock it to GT+ speeds... I got a good one and with my computer luck as of late I am hesitant to tempt the PC gods. Anyone have opinnions?
 

amol

Lifer
Jul 8, 2001
11,680
3
81
if you have a 6800, i would wait for next generations to upgrade to PCI-E

getting a new video card JUST to have PCIE is not a good decision