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From: balzer@frambo.dec.com (<CB> aka Christian Balzer)
Newsgroups: comp.sys.amiga
Subject: Re: HardFrame problems
Summary: Beware of bad RAM's
Keywords: HardFrame, 8MI
Message-ID: <3079@shlump.dec.com>
Date: 20 Jun 89 19:57:23 GMT
Sender: news@shlump.dec.com
Organization: DEC SWAS Franfurt/W.Germany
Lines: 40


Hello again,

here's an update on my friends HardFrame/8MI problems:

He came to my place with the whole shebang and we installed the HF in my
system (B2000/A2620/A2090/A2058/KS1.3/Obese Agnus).
It worked just fine with none of the mentioned problems showing.

However the results of a diskperf we made with a freshly formatted
Rodime 3085S made me wonder:

File create/delete:    create 17 files/sec, delete 52 files/sec
Directory scan:	    178 entries/sec
Seek/read test:	    133 seek/reads per second
r/w speed:	    buf 512 bytes, rd 93902 byte/sec, wr 27271 byte/sec
r/w speed:	    buf 4096 bytes, rd 170039 byte/sec, wr 43539 byte/sec
r/w speed:	    buf 8192 bytes, rd 267721 byte/sec, wr 45458 byte/sec
r/w speed:	    buf 32768 bytes, rd 443060 byte/sec, wr 45360 byte/sec
r/w speed:	    buf 131072 bytes, rd 462607 byte/sec, wr 45923 byte/sec
r/w speed:	    buf 524288 bytes, rd 524288 byte/sec, wr 46916 byte/sec

I received better results during my HD controller review with the same drive
using an A2090 on a 68000 system!

As soon as we pluged in the 8MI however, things started to fall apart very 
fast. A test with Fabian's MemDiag program showed some weak bits on the board.
While this still doesn't explain the HF failures w/o the 8MI on my friends
system, it least reveals the 8MI (or it's RAM's) as the major trouble-makers.

Thanks to all of you who did send in any comments.

Regards,

- <CB>
--  _  _
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