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Snippets

From Peter 
The RamQuest 32/16 to my knowledge is a memory card to be used with a "linear" (unmapped)  adressing model - like in a 386DX-class machine - and therefore does not support LIM/EMS. 

Tim Clarke 
     I had one of these (well... it's still under 'my control' in my brother's machine). The BIOS ROM limits total (planar + card) memory to 16MB-128KB (for Model 50/50Z etc.). Actually, that's what it *should* limit it to, but the v1.1 ROM has a bug which makes the limit 0x3E00 kilobytes, or 16MB-512KB. Anyway, the EMS driver supplied *will* manipulate the hardware to provide <= 8MB of EMS memory without requiring any more than the usual 64KB upper memory area  'window'. Yes, it takes 100ns or faster full parity 30-pin SIMMs, but has a distinct preference for 9-chip versions, or aversion to some 3-chip versions (timing sensitivity?). 

8-Pin Round DIN to 25-Pin Serial Converter Layout 
Thanks, Peter! 
Here's a diagram of the converter cable ("pigtail") 

8-pin DIN                         25-pin Male 
1 DTR =----------------------------------= 20
2 CTS =----------------------------------=  5
3 TXD =----------------------------------=  2
4 RI  =----------------------------------= 22
5 RXD =----------------------------------=  3
6 RTS =----------------------------------=  4
7 DSR =----------------------------------=  6
8 CD  =----------------------------------=  8
9 GND =----------------------------------=  7

Pin 9 is the outer shield ("Collar") of the Mini-DIN plug 

Serial and Parallel Ports
   This port can be assigned as Serial Port 1 through Serial Port 8. 
      <SERIAL 1 ( io 03f8h-03ffh  int 4)>, 2 (02f8-02ff  int3), 3 ( 3220-3227  int3), 4 (3228-322f  int3), 5 (4220-4227  int3), 6 (4228-422f  int3), 7 (5220-5227  int3), DISABLE BOTH PORTS 

PARALLEL Port
   This port can be assigned as Parallel Port 2 or Parallel Port 3.  If this port must be disabled due to a conflict, the Serial Port is also disabled. 
      <PARALLEL 2  ( io 0378h-037Bh  int 7)>, PARALLEL 3 ( io 0278h-027Bh  int 7), DISABLE BOTH PORTS 

Adapter BIOS Location
   You must choose the memory location the adapter will use for it BIOS ROM.  For computers with early revision ROM BIOS's  you must select either C000, C100, C200, or C400 
      <Segment C000 (0c0000h-0c0fffh)>,  C100 (c100-c1ff), C200 (c200-c2ff), C400 (c400-c4ff), D800 (d800-d8ff), DC00 (dc00-dcff), DISABLED 

Memory installed in Bank 0 (Ed. Other banks have the same options) 
   Set automatically by the Ramquest Extra BIOS code, depending on the type of memory installed. Banks with 1 Mb panels default to ZERO Wait state, and banks with 256 Kb panels default to ONE Wait State. 
          < -- >, "512K,  ONE WAIT", "512K,  ZERO WAIT " , "2048K, ONE WAIT ", "2048K, ZERO WAIT " 

Power-on Display Option
   If VERBOSE is selected, more technical detail is provided about the Ramquest memory location and speed when the computer system is cold booted. 
           <TERSE>, VERBOSE 

Start Address (For Information Only) 
   The start address of the Ramquest Extra is computed and set by the Ramquest BIOS.  This choice will show as '(not set)' the first time the board is installed, and will show the assigned start address once the installation is completed. 
           <" --  ">, 1280K, 1408K, 1920K, 2048K, 2176K, 2304K, 2432K, 2944K, 3456K, 3968K, 4352K, 4480K, 4992K, 5504K, 6016K, 6400K, 6528K, 7040K, 7552K, 8064K, 8448K, 8576K, 9088K, 9600K, 10112K, 10624K, 11136K, 11648K, 12160K, 12672K, 13184K, 13696K, 14208K, 14720K