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- Newsgroups: comp.sys.amiga.hardware
- Path: actrix.gen.nz!cpalmer
- From: cpalmer@atlantis.actrix.gen.nz (Colin Palmer)
- Subject: Re: IDE and EIDE, compat?
- Message-ID: <DMtIHt.ILw@actrix.gen.nz>
- Sender: news@actrix.gen.nz (News Administrator)
- Organization: Actrix - Internet Services
- Date: Thu, 15 Feb 1996 12:53:52 GMT
- References: <473.6614T935T1805@fdl.fdldotnet.com> <DMppvo.MyK@eskimo.com>
- X-Nntp-Posting-Host: atlantis.actrix.gen.nz
-
- In article <DMppvo.MyK@eskimo.com>, G. Baldwin <drizzit@eskimo.com> wrote:
- >
- > EIDE is basically a new standard that allows drives to be over xxx
- > Megabytes in size. It also allows you to have 4 drives on the bus
- > instead of the 2 that IDE only allows.
-
- These statements are both wrong.
-
- EIDE consists of PIO modes 3 and 4, and multiword DMA modes 1 and 2. It
- also defines LBA, which MS-DOS machines use for >503Mb drives.
-
- > EIDE also allows for the Fast ATA standard (much like how SCSI-2
- > allows the FAST and WIDE standards). Fast ATA is comparable to
- > SCSI-2-FAST.
-
- Fast ATA (and Fast-ATA-2) are still only comparable to SCSI as the chain
- is unterminated, so max throughput much lower than that of SCSI-2.
-
- > As for EIDE drives, they should work fine on the Amiga. I have heard
- > several people on the IRC talking about their new EIDE drives in their
- > A1200s, so I guess they should work fine.
-
- EIDE is a superset of standard IDE, so all EIDE drives should work on an
- A1200. The A1200 has no problems with >503Mb drives in CHS mode, so
- large drives are not a problem.
-
- > I'd stay away from Segate. You use a Seagate, I doubt you can use
- > much else that well (Seagates are very pickey about who they share the
- > IDE chain with)
-
- I had a 545Mb EIDE Seagate and had no trouble using a WD or Maxtor drive
- as a slave. You may have trouble older Connor drives, the 540Mb Connor
- in my A1200 refused to work with a 125Mb Maxtor, however the newer EIDE
- 1275MB Connor in my PC Clone has worked fine with a variety of drives as
- slaves.
-
- The best advice, if you're buying a new drive is to get a promise from
- whoever you buy it from that you can take it back in the unlikely event
- that it doesn't work (this is equally valid advice if you're buying the
- drive for a PC Clone).
-
- --
- /// --------------------+-----------------------------------------------+
- /// Colin Palmer |A! JW21 YK++i WK+++ DT+ P&B++ SL++^ SK+++ GDF- |
- \\\/// cpalmer@actrix.gen.nz | P+ $+ E19a Ee13c H2 PonSadMeal XBHurts Ay75 M |
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