I have a PowerPC 8100/100 that uses scuzzy hard drive, is there a way through converters to use a IDE hard dirve
No. SCSI and IDE are not compatible interfaces.
The 8100 should have three NuBus slots, however. I'm not aware of a NuBus ATA controller card, but maybe some other 'Fritter can enlighten us. Inquiring minds want to know.
thought so, my friend was telling me that there was an adapter that you to use to convert SCSI to IDE, but i guess not.
I've heard of these, however, they never really caught on and are expensive and hard to find.
You'd be better off finding a used high capacity SCSI disk.
Were could i find a SCSI drive for cheap?
I bet someone here would sell you one on the cheap. I would, but all of mine are about 2 hours from where I am now.
Go up on eBay. Go to the Computer Section, The first sub-section is Apple / Macintosh, click on that and then do a SCSI search. Usually there are several sellers that have drives (I forget how many Gig) for $49.99 plus shipping. You should be able to find a good range.
That's how I got mine for my 7300/200.
An ultimately better solution might be to get a G3 desktop with an IDE port instead of spending the money on a SCSI drive. (Beige G3s are "free" these days, and Blue & Whites are "almost free") But that's just a thought.
Those machines do limit you to 128GB or smaller drives, but that's enough for anything the machines are really qualified to do.
The Acard SCSI to IDE adapters are worth getting if you can find one at the right price. There are lots of SCSI flavours of adapter, but they work pretty well and are handy to have around if you have a few PowerMacs or Quadra/AVs and are short of big SCSI disks. The adapter can be quickly moved between Macs at a pinch.
Why are you still using an 8100? Do you have external SCSI, serial, or ADB devices you still need to use? If you do, a Beige G3 would be a better solution.
How many GB's do you need?
If you need more than 4GB, then what you would do for SCSI is buy a 68pin to 50pin SCSI adapter (the 8100 uses 50pin) and go to eBay and buy a 68pin SCSI hard drive--which come in larger capacities than the 50pin drives. But most of the SCSI drives around are probably pretty old, and the 68pin versions are often already well used server drives, so you risk buying a drive which may crap out on you pretty quickly. Buy from someone who's not selling in bulk, just someone who's selling off some of his personal old equipment, and who sounds honest. Most of the sellers with listings in very big bold type who sell large capacity SCSI drives on eBay "for your older Mac" are actually selling very used 68pin (or maybe more often 80pin) server drives with 50-68pin adapters attached. Not a good choice and they're usually very overpriced. There's also the question of whether the drive will fit into your case with an adapter attached.
But for the price of a SCSI to EIDE adapter you could probably buy a G4 tower.