Plextor 40x Ultra Wide problems. Please help if possible.

[BHMT33]

My first setup was the Plextor 40x Ultra Wide with a Promise Tech UW Scsi adapter. The adapter would never sync with the CD-ROM which gave me poorer data transfer speeds. I figured that if I got a new adapter, things would be fixed. I just got one of the Adaptec 2940UW adapters and I still get poor speeds.

According to CDSPEED2000, I get around 24x max on data transfers on a full 650MB CD, and 1MB burst (should be 40MB).

Setup:
Plextor 40x Ultra Wide
-Terminated
-Parity jumpered
-SCSI ID 3
-Latest Firmware
-sync transfer enabled
-disconnect on

Adaptec 2940UW
-SCSI ID 7
-sync on (40.0MB)
-wide negoitation on
-disconnect on
-bios 2.20.0

If you can help me, please reply. Thanks.

 

[mastertech01]

You know the media you use for benchmarking can make as much diff in the results as anything. You can run the same benchmark with 5 different samples and get 5 differerent results. Your drive appears to be working average for a SCSI drive.. I wouldnt sweat it too much. My Plextors bench DAE on average of about 27-29 ..

You will never get a 40MBS burst with a CDROM.. hell very few UW Hard drives will do that.

 

[BHMT33]

My DAE is around 24x, but I was talking about Data Transfers. I was looking at some of the old reviews done on the Plextor Ultra Wide, and all of them showed 35+x max data transfers on 650MB Data CDs.

I was wondering why I kept getting 24x max on data transfers on 650MB data cds. I thought it was odd.

Oh well..