.
 
 

Model 5560 


5560-W1B with  "kit W2B"

Pictures for Processor complexes stored in this page are originally created by Louis Frederick Ohland
You can see original pictures of PS/2 complexes in the Mad Edition of  Louis's  complex page. now maintained by Tomas Slavotinek 




 

5560-N

General Information
5560 Planar
Model Types 
  5560-W
  5560-N
Ref/Diag
SIMM

Video
SCSI/A
Inner View 
 
 
 

 


Processor Complex
W0 Complex
W1/2 Complex
DX2/66 Up Grade ( Type B )
CPU upgrade
Complex upgrade
Configuraing F/W SCSI-2 /A

 



General information
5560-W, the first desktop model with 486 class CPU, was introduced to the market on Oct. 1990 together with 5580-Y. 
5560  uses same base/outer case with PS/2  Mod. 90, ( 8590 or 9590 )  but  the planar  and  the processor
complexes are different from 8590 and 9590. Main differences are as follows.
  • 5560 doesn't use memory riser card.
  • Two MCA BUS slots are prepared in stead of memory riser connector.
  • SIMM sockets are directly mounted on the planar
  • XGA video is not ready on the planar.
  • Power connectors are not Edge Card type.
5560 Planar 
All types of 5560 use same planar. 
 

J1   serial port 
J2   Parallel port 
J3   Mouse 
J4   K/B 
J5   Processor complex
J6   Power on pass word 
J7   BVE 32-bit slot 
J8   AVE 32-bit slot
J9/J10 32-bit slot 
J11/12  32-bit slot
J13  Power 
J23  Power 
J24  FDD connector 
J26  Solder pads 
J27  Solder pads 
J28  PWR/LED connector 
J30  SP 
Y1   40.00MHz
Y2   22.1148MHz
Y4   14.318MHz 
Y5   24MHz
U20  57F2188 
U28  64F0942 
U43  N82077AA 
U52  22V10-25  35F3798
U57  DSKBOOT  64F3110
F1   2A
F2   3A
F3   5A
 
 J11 &  J12   
These are not for SIMM risers but they are usual 32-bit MCA slots. 
SCSI /A with cache is initially installed at J12.
Japanese Display Adapter B-II ( or XGA-2 ) is placed at J7.
Power connector
Edge card power connector is not used for this planar.  J13/J23 are pin type connectors to which female connectors from PSU are plugged. 

 

      

Model-Types

As described in    At a glance page,  there are 4 types of  5560. 
5561-W0x ;  486DX25 You'll have enough time for cigarettes and a cup of  coffee or two until  the machine finish memory count  if you have filled all SIMM socket with 8MB SIMM. 
5561-W1x ;  486SX25  Memory count is faster than -W0x
5561-W2x ;  486DX2-50  Most likely the complex is  same with  -W1x.
5561-Nxx  ;  486DX2-66 Supper charged 5560 with a Type-B DX2-66 upgrade platform. 

5560-W
 Model
5561
W08,  W0B,  W0C
W18, W1B, WYA, WYB
W28, W2B, WA8, WAB
 Processor
486DX-25 
486SX-25
486DX2-50
 RAM
4MB
4MB ( 70ns)
4MB ( 8MB for WAx )
VRAM
1MB ( PS/55 Display Adapter )   B-2 ?
Disk
Drives
 FDD
3.5" x1 ( 1.44MB/720KB )
 HDD
Last digit of type code indicates HD capacity ( 8; 80MB, B; 160MB, C; 360MB )
Option Slots 
( left for users )
 32bit full size x3 , 32bit half size x1
 Storage bay 
 2
Dimension ( mm )
 440( W ) x 430 ( D ) x 140 ( H )
Weight ( Kg )
 14
AC Input 
 AC100--120V 50/60Hz,  215W ( MAX )
OS installed
None
WYx; S/2 J2.0 & DOS J5.0 WAx; S/2 J2.0 & DOS J5.0

5560-N
Model
5561
N0B
NYB *1
NMB *
NMY *
Processor
i486DX2-66 
RAM
8MB
16MB ( 70ns)
VRAM
1MB ( PS/55 Display Adapter )   B-2 ?
Disk
Drives
 FDD
3.5" x1 ( 2.88MB/1.44MB/720KB )
 HDD
200MB 
Option Slot 
(left for User )
 32bit full size x3 , 32bit half size x1  32bit full size x2, 32bit half size x1
Storage bay
(left for user )
 2
Dimension 
( mm )
 440( W ) x 430 ( D ) x 140 ( H )
Weight ( Kg )
 11.4
AC Input 
 AC100--125V 50/60Hz , 194W( MAX ) 
OS installed
None
OS/2 J2.0 & DOS J5.0 OS/2 J2.0 & MCADAM OS/2 J2.0 & MCADAM

    *1 NYB :  OS/2 model
    *2 NMB : MCADAM/2 ( CAD software ) included .  ASYNC TTL /Adapter is included. 
    *3 NMY : MCADAM/2 upgrade version.  ASYNC TTL/Adapter is included 

 

Refference & Diagnostic
Ver. 1.11 is commonly used for all models except 5560-N 

For 556-N, use machine specific Ref/Diag Ver. 1.0 

SIMM
8 x 72pin SIMM sockets are directly mounted on the planar.
True parity 8MB/70ns SIMMs are mandatory for -W1, -W2 and  -N complex. 
For W0 complex,  80ns SIMMs are standard and must be used in matched pair. 
For W0/W1 models,  reference  Ver. 1.11 is required to use RAM's more than 16MB. 

Important note regarding SIMM height.
PSU locates just above SIMM slots and there isn't enough space left for tall SIMMs.
Do not use SIMMs taller than 25mm ( most of IBM true parity 8MB sticks are this size.)

Please check 5560 sec of Ardent Tool for this issue reported by T. Slavotinek,

Video
No video chip is  ready on the planar.  PS/55 Display Adapter B-2 ( BVE with VGA chip )  is used  for 5560. 
5560 doesn't have XGA chip on the planar. 
AVE 32-bit slot locates beside complex riser in addition to BVE slot which is already occupied with D/A B-2. 

Genuine SCSI /A with cache 
A stock SCSI /A for -W1/W2 models  is, unlike 8590,  half  length 32 bit adapter with AT like 50 pin header . 
ADF is usual @8eff  ( 32Bit with cache ).  SCSI micro code set is  64F4376/4377.  See outline   HERE.
16 bit SCSI /A was used for W0 model but I don't  know if it was a long uncached card or short uncached card.

5560-N model was equipped with a short length SCSI  Adapter II/A (32bit) with 512KB cache  (  which is IDed as  06G6760 in sales leaflet and  I think the part might be ether  35G2818 or 07G3063. )
 

Inner View  ( click image to enlarge )
Photos below are inner view of my 5561-W1B with Type-B Upgrade processor complex.
Half sized caching SCSI /32A with  50 pin header was changed to a short caching SCSI /A -II/32A with new    micro code set.
You can see an AM5x86-133 on an interposer with a short height heat sink which runs in 160MHz inner speed ( No CPU fan but fresh air blows out from the front fan  ). 
 
   Pic #1 

Adapters  (  from top )
   J9   ;  Madge Smart Ringnode MC32
   J7   ;  XGA2
   J10 ;  ACPA
   J8   ;  Intel Fax/Modem Adapter
   J5   :  Processor complex DX2/66 Up Grade Type-B
   J11 ;  vacant
   J12 ;  Short Cached SCSI with new Microcode

Close view of CPU #1
Close view of CPU #2

 
  Pic #2 

Close View ; SIMM and Power Connectors
You can pull the PSU upward and then swing it down to  right side like Mod. 95.

You can see Power connection is different from PS/2 Mod.90.

Tall height SIMMs are not good for 5560.
Needs clearance between SIMM and the PUS. 



Processor complex  for 5560 ( please see comparing chart 
Following complexes can only be used with 5560 planar  except W0 complex which can be used for  5580  if  you want. 

W0 ;  P/N 79F0087,  80486DX-25MHz. 
 

Seemed to be a Modified Type 1- J.  256K cache card available. No overdrive socket prepared. 
This complex can take 31 MHz OSC without any change of BIOS.  The Board design is same with 5580-Y complex. BIOS P/N are same each other but just the board P/N and  FUR and OSC are different ( 5580-Y0 uses 33.3MHz OSC ). 


          * Original image was outlined by Louis F. Ohland

W1 ; P/N 07G0460  FUR 95F4299,  80486SX-25MHz. 

Modified Type H.   486SX CPU is loaded on the main socket ( U8 ) and an overdrive socket is placed  right  next to the main socket.   Memory count  is faster than W0 complex. 
No L2 cache available. 


         


        * Original image was outlined by Louis F. Ohland * 

W2 ; P/N 07G3153 
       ( amended on 2003.05.04)

My machine is labeled as "5561-W1B" and has a sticker  "KIT-W2B". 

KIT-W2B description.
A sticker  "P/N 07G3153"  and REA number is attached right on the area ( the solder side of  U8,      80486DX socket) where P/N is silk screened on a W1 complex. 
Also there is a " MPU Upgrade" sticker attached on the blue lock lever of the complex board. 

Earlier W2x models were shipped with an i486SX-25 loaded on socket U8 and a 486-25/50 upgrade       option  ( ID#06G7015 ) on socket U9.   Latter models were shipped with i486DX2-50 loaded alone on       the socket U9.   W1 and W2 complexes are "same"  each other.

 
U6 Variants from Louis's page
 " Some Type-2 (92F0079) suffer from an "incompetent DMA-chip", which is P/N 92F1428 at    position U6/GA-M on the card. Working Type-2s 92F0079 have a DMA-chip P/N 10G7808 at U6/GA-M. If U6/GA-M is 10G7808 a Turbochip should work fine. 
The earlier Type-2 use the 92F1428 -  which ends the experiment in odd results permanent          I9990044, 605 FDD errors, permanent 165 errors and inability to read from  FDD). " 

But  Japanese " KIT-W2B"  with U6 P/N 92F1428 works fine with ; 
1). DX4ODP-75 with 486SX25 on the 1st socket. 
2). DX2-66 alone on the 2nd  socket ( 50MHz inner clock  operation ) 
3). DX4-100 on an  interposer with VRM alone on the 2nd socket. 
4). am5x86 or Cyrix 5x86 ( with voltage interposer )on the 2nd socket. 

There is no significant difference between Type 2 H in Louis's page and above PS/55-W1/W2 complex.  The board P/N ( or FRU ? ) and the BIOS P/N are just different

 

 N ; P/N 35G2951  FRU 35G2765  80486DX2-66MHz 

A variant of  Type 2- L? 
No support for SyncroStreaming Data transfer. 
Originally equipped in Model 556-N which was introduced to the market in Sep.1992. 
The complex is also referred as DX2-66 UpgradeType-B .


  

* Original GIF image was outlined by Louis F. Ohland * 

There is no over drive socket on this complex.  At the position of  U9 of W1/2  complex, 
N complex has solder pads. 
DMA controller chip U6 is 34G3517 for N and 92F1428  for W1/2.

At least there are 2 versions of  this complex.  While I replaced the OSC to  80MHz,  I noticed
that copper traces around solder side of OSC were different, and found one board has a chip
resister and the other doesn't.  Both complexes worked fine with 80MHz  OSC with  modified
BIOS ROM. 

All complexes of model 5560  including N complex use EPROM. 
Streaming data transfer feature is not supported on all 5561 complexes. 

 

        

CPU upgrade

For Wxx, DX4ODP-75 can be used. You can use DX4ODP-100  but it runs in 75MHz  inner speed.

N model can take DX4-100,  AMD and  Cyrix  with an appropriate VRM interposer which supplies 3.3v - 3.45v.  As N complex has it's CPU socket at the front edge,  it's difficult to use a thick heat sink with a cooling fan in regular size.  As far as you use blue plastic air guide properly,  your CPU will get  fresh air flow from the front fan. 

 

 

 

Complex upgrade

60-W0/W1 can be replaced to -W2 or  -N complex, 
60-W2 can be replaced to -N complex.  
60-W1/W2 complexes can be used for 5580.  Associated REF/DIAG for 5560 could not be used in this case.  REF/DIAG for 5580-Wxx should be used together with. 5580 with 60-W0 complex with 5580-Y REF/DIAG    ==>  No equivalent model exist but works fine. 

5580 with 60-W1 complex with 5580 -W REF/DIAG ==>  5580-W0x
5580 with 60-W2 complex with 5580-W REF/DIAG  ==>  5580-W2x

Attention Please, but
Following combination doesn't work !
5580 + 5560-N complex ( also referred as type-B upgrade ).  So far, there is no matched Ref/Diag for this combination, until someone successfully build a special version after inspection Type-A Ref and 60-N Ref.    

 



My 5561-W1x ( upgraded with 60-N complex )
64MB of RAM,  BIOS modified N complex with 80MHz OSC,  am5x86  running  x4 speed, 
ATI-GUP,  Madge Ringnode MC32,  Genuine IBM SCSI /32A with cache,  650MB+1G hard drive,
Hitachi made x2 CD-ROM without bezel. 

F/W SCSI-2 /A  in 5561 
 
 

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