INstall Problems Turbo2 and 48x12x48 CDRW?

Question

Purchased Cendyne ( edit: same as Aopen) 48X12X48 11/29/02 (from reading hear some got Lite-On model? - my PN# begins 91.3... and serial# ends ...EB1). Package included NERO V5. (underneath 90.3AD28.001) no key# on disk envelope.
Installed as Secondary Master in Win98SE (Only other drive is Primary Master HDD).
Device Manager shows: CD ROM/detail shows 48X12X50(50 vs 48?)
Driver: MS default CDROM 1999
1st post screen:Secondary Master 48X12X50 CDRW 1.01 20020904 1.01
2nd post screen: CD-RW ATA 33
1st problem: Can't boot into windows without Scan Disk cause screen says one of my drives may be causing errors on HDD. By pass scan to boot.
When I insert the above NERO disk it makes an awful sound when attempting to read. Tried to install nero, and it said files were configured and now reboot, and wouldn't - as above. Nero not installed.
Ran ASPI checker, and tho message seemed a bit grayed-out, said was ok.
Drive seems loud when reading other system disk (compared to my prior Digital 40X CDROM).
Tray operates ok, and played music disk just fine.
So to sum up, I'm very concerned with improper boot, loud, vibrating noise when nero disk is in, and general loudness of read cycle.
Also, am wondering if overclocking 1600+ could contribute to  such problems? Thanks for any help!
P.S. All temps and voltage OK.

Answer 1

wonkanoby: Owe you a pint for that one mate.  :]
Was too lazy to take my own suggestion, and now downclocked to default (set to 1.55v again, much cooler). Didn't change 40 pin cable, and all seems fine.
No problem booting, Nero set up right away.
Friend of mine burns a ton, and discovered overclocking a culprit.
Question. Am I right that these drives are limited to ATA33 like my old CDROM drive, not needing 80 pin cable?
Also, any thoughts about louder read? More common to CDRW?
P.S. This new, retail drive was only $9.95 US after rebate  ) .