Nero Scan SCSI Bus SLOW??

[mpsan]

I have 2 systems with Nero 5.5.10.15a and Liteon 52X drives.
One is a PIII-500 (OC to 560) and the other is a P4-2GHZ. Both are running XP Pro.

All works on both, except the FASTER system takes about 6 seconds when I open Nero and it scans the SCSI Bus. The "Slow" system, opens Nero and scans the SCSI Bus in a second!

Any ideas what may be configured wrong...perhaps CMOS? I believe both are set to UDMA 2.

The slow system has the writer on an ATA33 IDE and on the faster system it is ATA100! Does any of this make sense? All works, it just bothers me every time I open the "FAST" systems Nero!

TIA

 

[scarecrow]

ATA100 makes no sense for a burner- the fastest you can get in theory is ATA66, but the older ATA33 protocol allows fullspeed for even the fastest current burners (future ones too, it seems).
Actually ATA100 does not even makes much sense for a harddisk too, as the best you can expect when everyhing is configured properly is sporadic burst streams at about 45 MB/second- and in most cases way beyond that.
Assuming that you use IAA on both computers, set the transfer mode limit for your ATAPI devices from "maximum" to UDMA-1 (not -2... this is the cheapo...), reboot and all may run fine now.

 

[mpsan]

Thanks! i will try that. My "FAST" system has 2 ATA100 channels. That is why it is on an ATA100.

IAA is on the fast system and not on the Slow one. That may be why the fast one does not have an advanced tab under ide controller in device manager. Will try this at home. I actually never even opened the IAA. Also, I thought that it was UDMA2, why did you say to set it at 1?

TIA

ATA100 makes no sense for a burner- the fastest you can get in theory is ATA66, but the older ATA33 protocol allows fullspeed for even the fastest current burners (future ones too, it seems).
Actually ATA100 does not even makes much sense for a harddisk too, as the best you can expect when everyhing is configured properly is sporadic burst streams at about 45 MB/second- and in most cases way beyond that.
Assuming that you use IAA on both computers, set the transfer mode limit for your ATAPI devices from "maximum" to UDMA-1 (not -2... this is the cheapo...), reboot and all may run fine now.

 

[scarecrow]

Setting atapi as udma may cause bottlenecking... you may also check your IAA version and upgrade to a recent one- some versions of it were really buggy.

 

[mpsan]

Well, I believe it helped. Did not have a ton of time yesterday. I did, however, see that they have a 2.5 IAA and I am on 2.3.?? so I should upgrade.

I do have it set at udma-2 for the liteon and did change the speed from MAX to udma-2.

Setting atapi as udma may cause bottlenecking... you may also check your IAA version and upgrade to a recent one- some versions of it were really buggy.