Is there a way to install 50 pin SCSI II devices on a board with Ultra160 without installing yet another SCSI card?

[Idiot56209]

I have a 50 pin SCSI CDROM and burner that I want to install on a board that has Ultra160. Is there some sort of internal adapter or something that will let me put these types of 50 pin SCSI devices on the Ulra160 controller so I do not need to install yet another SCSI card?

TIA!
J

 

[jhu]

how about a converter? i've seen them around.

 

[llew]

there are such adapters. i bought one off e*ay for $14

 

[obenton]

Termination can get tricky when you do this. Order from knowledgeable SCSI people (such as http://www.cablemakers.com/ ) and they'll tell you what you need.

 

[shathal]

Urm - there's a few things with these adapters.

For a start, I don't like them (heh - no argument for you, I know) - I prefer to keep my SCSI-wiring "clean" - i.e.: no converters.

The biggest problem is that if you connect a "slow" device to the SCSI-channel, your SCSI-protocol will go down. Thus, if you connect an Ultra-Wide CD-ROM, the SCSI is going to run at Ultra-Wide (i.e.: 40 MB/s), not Ultra-160 (i.e.: 160 MB/s) protocol.

Just so you know.

But if that's not something you worry about, go ahead & use an adaptor.

Hope this helps .

 

[tristramshandy]

Hey, I don't know what kind of adapter you have, but the Adaptec ultra160 family cards claim to be able to integrate slow and fast peripherals without speed degradation. That's the claim anyway.

 

[Idiot56209]

Ok. GOOD! Thanks.... and the Ultra160 is dual channel, so if "slowest common denominator" becomes an issue, I can put the Ultra160 HDD and CDs on two different channels.

So...

Any links? Picture of adapter? Model number? What do I ask for/search for?

Thanks again guys!
J

 

[Idiot56209]

OK. The second item on this page (gotta love PC-Pitstop sometimes) speaks of a SCA80 Female to SCSI II 50 pin. Is this what I need? SCA80 is the Ultra160 interface, right?

Here's the low down (down low)... If you look at my "Idiot Box" you'll see I have a Teac burner and NEC Multispin.... both SCSI. I ordered one of those Gateway 6400s for $500. It has dual channel Ultra160 and no 50 pin and the CDROM included is IDE (blah!). I want to use my drives on this new machine. Need an adapter to accomplish this.

Thanks!

 

[Idiot56209]

68 pin on the Ultra160, right? That's what I'm finding.

 

[bozo1]

You need a 50-pin female to 68-pin female. 80-pin is SCA which is not what you need.

 

[BrotherRaven]

What works well is the Adaptec 28160 scsi card. It accomodates 2 channels. Thus you can put your hard drives on one channel, and on the 2nd channel, you can put dvd anc cdrom drives like I do.

Adaptec 29160 (64bit card BUT it is backwards compatible with 32 bit pci slots)
3x 9gig 10k rpm Cheetah (68 Pin)
Plextor UltraPlexWide (40x CD Rom drive 68 Pin)
Plextor 12/4/32 (CD-RW 50 Pin)
Toshiba DVD Drive (50 Pin)

Brother Raven

 

[Idiot56209]

BrotherRaven: I appreciate your willingness to help, but if you read the posts, you'll see that I have Ultra160 on board and do not want to ADD a SCSI card to the PC.

Thanks though...



bozo1: Yeah. I think I just found that out looking at Manhattan's website. 68 pin, like UltraSCSI, right?

 

[llew]

click here, only 2 minutes left

 

[MJT2k]

I might be wrong on this but I am not sure. 50-pin Narrow SCSI is Single-Ended and Ultra160 is LVD that could cause a problem for you unless your adapter can do both. Just so you know the adapter you need to buy (if they will work) could cost more than a 50-pin SCSI card.

 

[Idiot56209]

Thanks llew! They have that same part at STSI's store, so if it'll do the trick, I can still get it from them.

MJT2K: That's why I posted this here. I'm hoping someone here has done this exact same thing. Seriously, what do motehrboard manufacturers EXPECT you to do when they give you dual Ultra160s inside? All CDROMs and CDRs are 50 pin SCSI for all I know.

 

[Idiot56209]

OK... Finally found what I was looking for. Paul from PC Pitstop actually answered an email over the weekend... AT NIGHT! Whoa! Talking about burning the midnight oil!

He said a 68 pin male to 50 pin male should do the trick, but a model with high byte termination that terminates the upper 8 bits that 68 pin uses would be the "most safe", and at only $13, a "why not" investment over the $8 68 to 50 pin converter.