SATA UDMA problem

[razor_ro]

I have 2 Seagate Barracuda SATA HD's running. 1 is an 80gb 7200rpm 8mb and the other is the 200gb 7200rpm 8mb buffer. The 80gb one runs perfectly at UDMA 6, the other one is capable of running at UDMA 6 but is set to UDMA 5. It lets me change the settings then asks me to restart but when i come back after a reboot its still at UDMA 5. i dont have any settings in my BIOS for SATA drives (mobo: ASUS a7n8x-e deluxe). I tried setting it under DEVICE MANAGER and even tried the SATA program @ the ASUS website that runs under Windows and the same thing happens. Does anyone know why this is happenning? I was thinking that maybe only 1 drive is allowed to run at UDMA 6 because its taking up all the bandwith so the other has whatever is left. Any sugestions are welcomed, thanks

RaZoR

 

[Mainframeguy]

HMMMmm I have same drive {EDIT} that's the 200! {/EDIT} and it runs around that speed - 100? only have the one SATA with a couple ATAs though....

Try runnig HDtach and post back what you are getting... Nothings perfect though, took me weeks to get mine this far!

 

[Glaanieboy]

Isn't UDMA only used in PATA connections?

 

[razor_ro]

its wierd.. from what i understand its not possible to to go to UDMA5 in SATA.... the lowest speed for SATA is UDMA6.... so i think it could be just a display bug/glitch

 

[Mainframeguy]

sooooo... can I ask what speeds HDTach gives you? ust wondering if my HD is performing as it should