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P-4/SiS645 DDR??? IDE Problems...

C

Chain777

Senior member
:disgust:

Is anyone out there running a P-4 with a SiS 645 (especially an ECS board, like I have in my Sig).

I've tried getting an answer to this seemingly simple problem without success. It's as follows:

I can't enable DMA through windows on ANY device on the primary IDE channel without corrupting the drivers. The secondary IDE channels work fine in DMA mode.

As you can imagine, my primary hard drive (on the primary IDE channel) is an ata-133 (UDMA mode 6), and is forced to run in PIO mode? After benchmarking, I'm getting less than half the throughput the drives capable of...not surprising considering it's running in PIO mode. I realize this board only supports up to ata-100 (UDMA mode 5), which is fine, but I can't figure out how to run this drive, or any others, on the primary IDE channel without a driver problem. I can't find anything in the bios to change these parameters. (I have the latest bios flashed).


Sorry if this sound confusing, believe me, I am at this point.


ANY help would be greatly appreciated...not to mention the 10X Kharma thing....

Thanks again.

UV

...just for more info:

I have my 40GB Maxtor ata-133 and my TDK/CD/RW on the primary IDE channel and the 30GB Maxtor ata-66 and a Creative 2X DVD on the secondary IDE channel (which both work fine in DMA mode). And yes, I have the jumper set right...master...slave...etc.
 
I'd posted this in the other thread:

1) Check over at Maxtor and see if there's a utility to force your drive into ATA/100 mode. Seems like there are some BIOSes out there that have a problem detecting the D740X drives

2) What IDE drivers are you using? SiS has been incorporating their IDE drivers with the AGP driver, so when you install/update the AGP driver you end up with an updated IDE driver and this isn't always a good thing. Check if you're having the problems with the default Windows drivers.

3) For SiS issues, check the forums over at OCWorkbench. They have a rather large and active SiS community over there thanks to the ECS K7S5A.

Good luck.
 
I have the same board and haven't had any problems with it yet. I have a Maxtor ATA100 drive on the primary, and a burner and CDROM on the secondary running 2k. Does it happen in both OS's? Maybe try disconnecting your burner and running only the hard drive on the primary.
 
i agree with heisenberg.....that cd-rw drive might be draggin down your hard drive.....run it on its own channel and see what that does
 
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