Will a SCSI 320 HD work on a SCSI 160 Controller

[mlmiller]

Hi this is my first post. I am in the market for a SCSI controller and SCSI Harddrives for my 2 workstations. One is for DCC and other is for Video Editing. Both systems are Hyper Threading Pentium 4 on the ASUS P4C800 E Deluxe mobo. Because neither board has a PCI-X slot the only good SCSI controller I could find was the Adaptec SCSI Card 29160N which was designed to go up to SCSI 160. I read a review somewhere that someone was able to use SCSI 320 HDs on it without a hitch. Is it possible to use 320 SCSI HD a SCSI card designed for 160. Both use same 68 pin ribbion so I just want to make sure before I go out and buy them. Any info would greatly be appreciated. Thankyou

[mairving]

You can use it without any problem. Transfer rate will be slower is the only thing. Just make sure that you get a 68-pin HD not the 80-pin that are mostly used for hot-swappable devices.

[mlmiller]

Well I just got done talking to Adaptec and yes you can use SCSI 320 HDs on SCSI 160 controller cards.

[GRP]

you have a great motherboard that supports sata 150 mps. You won't need to buy a scsi adapter card and you can buy a wd raptor 10.000 rpm hard drive. Why buy a 320 mps scsi hard drive and then put a 160 mps scsi card?

[mlmiller]

I decided to go with the Adaptec SCSI Adaptor 2021S. It is backwards compatiable with 32-Bit PCI and it can do Raid 0,1,5,10 with up to 15 devices for SCSI 320 HDs.(though I doubt I will use that many).

[mlmiller]

Originally Posted by GRP you have a great motherboard that supports sata 150 mps. You won't need to buy a scsi adapter card and you can buy a wd raptor 10.000 rpm hard drive. Why buy a 320 mps scsi hard drive and then put a 160 mps scsi card?

That is a very good question? That does make no sense now does it. Hence why I am going with a Adaptec 2021S SCSI Adaptor.

SATA is great but with SCSI I can use up to 15 devices. the mobo does not support Raid 5 or 10 in SATA

[glc]

The 2021S will only run at 160 in a 32 bit PCI slot. A 64 bit slot is required to get the full bandwidth of SCSI 320.

[mlmiller]

I've decided to go with the ASUS NCCH-DL Xeon motheroboard. It is regular ATX size, Works with Nocoma Xeon CPUs, has 2 PCI 64bit/66Mhz, as well as 2 PCI 32bit/33MHz, is based of the Intel 875P chipset which is good for me because my Matrox RT.X100 is very picky about chipsets and 875P is one it works flawlessly on. Also come with 6 x SATA for raid 0,1, 0+1. Last but not least it has AGP 8x Pro and works with unbufferd or ECC unbuffered memory. This is a dream come true for me. Check it out. I think I'll go with a 64bit PCI-X Gigabyte Ethernet card for when I network the 2-3 of them together.

http://usa.asus.com/prog/spec.asp?m=NCCH-DL&langs=09