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Forums > CSDb Discussions > Rex Dos OC118...
2018-10-12 15:24
Flavioweb

Registered: Nov 2011
Posts: 362
Rex Dos OC118...

I have an Ocean OC118 (aka Excelerator+) with a "Rex Dos" rom inside...
Even if it works on a stock machine, i would like to understand if there is a special c64-side rom, with which the drive can be used... (Like Jiffy dos or something).
Does anyone know anything about it?
2018-10-12 15:31
Groepaz

Registered: Dec 2001
Posts: 8900
didnt these come with jiffydos installed? what does the error channel tell you after poweron?
2018-10-12 15:50
Flavioweb

Registered: Nov 2011
Posts: 362
It say "73,R-DOS 40 TR. 1541,00,00"...
No Jiffy...
2018-10-12 15:53
Groepaz

Registered: Dec 2001
Posts: 8900
funky :)
2018-10-12 16:15
hedning

Registered: Mar 2009
Posts: 1820
”According to this site the Rex Dos rom seems to be part of a parallel speeder kit similar to Speed Dos, so you would need a parallel cable and a matching kernal rom to make it load stuff significantly faster.” From a Lemon thread.

http://retroport.de/Rex.html
2018-10-12 19:53
Flavioweb

Registered: Nov 2011
Posts: 362
Ok, thanks...
I see 3 models of cables:
- DOS-Kabel (Rex 9795)
- DOS-Kabel (Version 2)
- Floppy 1541 Parallel-Kabel (Rex 9535)
which all seems to be SpeedDos/RexDos compatible.

But... the C64 Eprom to use?
Could be the Exos V3?

I have this one in my EasyFlash and seems to speed up normal 1541 drive without any Parallel Cable/RexDos chip inside...
Could be faster with parallel-cabled OC118?

I need to look inside the drive... but i think the OC118 have the 6522 soldered directly to motherboard... and i have no intention of unsoldering it (Warranty may be lost =P ).
2018-10-13 00:21
sailor

Registered: Jan 2002
Posts: 66
Here is a picture of the inside, with paracable http://blog.worldofjani.com/?p=148
2018-10-13 00:34
oldskool

Registered: Apr 2006
Posts: 18
just use a C64 with Speeddos(+) Kernal, its compatible
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