I bought this brand new NEC ND-3540A drive, last wednesday. Installed it on my Silicon Image 0680 Controller as a Secondary Master.
Well after some burns, I did some transfer tests on Nero CD-Speed, and realized the readings were to unstable. So I thought it could be bad quality burns, the drive itself, etc. Later I came to this forum and I saw some smooth readings reported by some users of the same drive. So I started suspecting!
I then decided to check a full Nero CD/DVD Speed transfer test. This is the result:
What caught my attention were those 14 MB/s you can see on the image. I know the drive canÂ´t ever reach the 16X speed both at reading and writing, being limited to those 14 MB/s!
So I installed the Controller Add-on card software to check itÂ´s DMA mode. This is the result:
So here I can see the real problem. The driveÂ´s DMA mode is set to MDMA 2 mode. Not enough! The other strange behaviour is the ATA Version, being just PRE-ATA 2! Both my Lite-ON SOHW-832S and JLMS XJ-HD 166S are ATA/ATAPI 5!
So I was happy for a moment. I thought problem solved! LetÂ´s go change it to UDMA 2 mode. When I was there I was surprised with this:
Where is the UDMA 2 option?
Well, the drive must support UDMA 2 to be able to operate at itÂ´s rated speeds. Is my drive deffective? Is the card the problem? Perhaps a compatibility issue between drive and add-on card!
Thanks in advance!