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Savvio SCA drives in a 6500?

Yea, I dunno. All I know is, it doesnt work. neither the terminated, nor the non-terminated in my PM6500. Must be a weird SCSI implementation, or its asking the drive to go into wide mode, and its not on a wide bus. Why that would be, i dunno. maybe the presence of a newer SCSI manager on the PM6500. 

 
techknight said:
I see the resistors for the 8 signals, and the 8 data bits. But I see 4 more on each side. Not sure what those are for
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D8 -> D15 :) SMT Resistors where used there as there wasn't space for another resistor pack without making the board bigger (And Thus too big to fin into a Pizza Box LC).

The original revision (aka modified Chinese adapter) of my adapters didn't have the extra 8 bits terminated. But all the ones i have ever sold do (even the modified Chinese ones that i sold do)

 
techknight said:
Yea, I dunno. All I know is, it doesnt work. neither the terminated, nor the non-terminated in my PM6500. Must be a weird SCSI implementation . . .
Click to expand...
My WAG is that it's likely to be the ridiculous cable harness in the FuglyTowers. If I can find time, I'm trying to pack stuff up, not tear stuff down ::) I'd like to test the 64/500 MedusaMess against the one in my 6360 to see if that's the limiting factor.

@ max: good to hear you implemented those data line resistors. It's been a long time and I sort of stopped following your project after I'd cleaned out OWC's inventory. Now my question would be those "extra" termination resistors in the dual connector adapter pic, on my single connector OWC adapter and their function.

.

 
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lol. I see how it is. Maybe that was a bit harsh. :p

Anyway, I think its a SCSI implementation issue. his adapter didnt work either. Even after supplying termination power, and removing the in-cable terminator. 

 
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I'm packing up the SE/30 and IIcx stuff for the time being. I'll be hooking up The DEC/6500 and the BenchMac6360 during one of my breaks from downsizing/storageroomization. I'll try one of the OWC terminators with each MoBo and Cable Harness in the four configurations.

I'm with you on your guess that it'll likely not work. It makes more sense that Apple borked something in their half-assed SCSI implementation when they wedged their entirely broke-assed IDE implementation into the SCSI I/O structure for that series. They pretty much never did anything right the first time around back then.

 
Speaking of which, how and where in the box were you installing the diminutive beast? Were you trying to run the Savvio off the Zip Drive cable, dd you install another connector in between or are you tapping the CDROM connection?

The ZIP was optional, did the insta-towers ship with a termination on the CD, on the end of the Zip Cable or what? Was it a user installable upgrade of installed by Qualified, Certified only kind of deal?

That entire Performa era gives me the heebiejeebies. The 6360 was a refurb and I knew exactly what I was getting the rest of the line was spaghetti coded for individual retail outlets so you couldn't do price matching. Crazy-Eddie-Macs ( <- look, no BumpyCaps! ;D ) would be the perfect slanderous name for Performa Bundling, nobody could beat Eddie's prices on ANTHING, because they had their own special model numbers on EVERYTHING . . . bat rastards!

 
OK, got the extra MedusaMess from the gladly departed 6500 in my hands. The Zip cable is a 10" M-F Extension plugged into a connecter between what looks like a permanently installed IDC Terminator and the funky cold swap CD "socket-thingy." I tore the DEC6400 down and it has the same configuration. How could I forget this kinda cabling kluge crap? :p

So I unplug the Zip Extension and plug an adapter directly into the main cable or onto the end of the Zip pigtail?

 
TheWhiteFalcon said:
Is the CD ROM also attached at the same time? For some reason I'm thinking the bus could only handle one device.
Click to expand...
I doubt it. does the same thing if I use my external enclosure, and hook it up to the DB25. Plus if this were true, then the Zip drive expansion accessory would have never worked. 

 
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Yeah . . . it got me to finally tame the cable monsters residing the HackStation and put BenchMac6360 back into battery after months and months (AND MONTHS) of procrastination. I'll be going straight to testing a 73GB Savvio on the external SCSI bus with full-on OWC Termination. If that doesn't work, backward compatible UltraSCSI was well and truly borked by Apple in the Performa era tradition.

 
I hate to say but my beige G3's hate SCSI hard drives. Even Apple branded. Don't know why but they just kinda don't play nice.

 
My 8600 is picky as well, the 18.6Gb drive in it only works with my actively terminated adapters. On the older somewhere between actively and passively terminated adapters it refuses to work. It sees the drive but will freeze in the boot process. With a actively terminated adapter it boots just fine.

 
Yeah, I stuck the UltraSCSI card into the (previously Beige Desktop) BorgMacG3™ spawn of the 7600MetalMiniTower™ after it ate the (too large) boot partition of the HDD from my comatose QS'02. I never tried running them off the G3's SCSI after that fiasco, they were for backup/recovery ops. SCA drives work very nicely in their native mode over a PCI inbterface card.

__________________________________________________________________________

This thread just killed a good bit of my day with tangential playtime. I dragged what's always struck me as about a 12lb. extra height ZFP HDD enclosure off the display. The full height 5.25" boat anchor within died of stiction long ago, but I haven't been able to get rid of it for sentimental reasons . . .

. . . so i figured it'd make a great external enclosure for a pair of striped Savvios. Getting these Big@$$ suckers apart is probably fairly straightforward if you remove the warranty voiding stickerage, but that needed to be intact for my purposes. a lot of twisting of screwdrivers in the appropriate slots and pounding the rip claws of a framing hammer into the cracks with a large ball peen hammer did the trick. What's left is a really nice, cooling finned, black painted cast aluminum enclosure that's shock mounted to the silver steel (white metal?) mounting frame surround. }:)

Lots more stuff got dragged out, organized and packed away in the process, so it's a net plus and it's on to testing!

 
It's all in the termination after all. SCSI Probe Saw something. TattleTech 2.81 told me exactly what it was and I used Drive Setup for the first time ever.

Formatted capacity: 68.34GB

PowerMac 6360/6400 Series

G3 400MHz

OS 9.0

 
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