View source for IBM WDI-325Q 20MB Hard Drive

This is a circa 1987-1988 proprietary Hard Drive, manufactured by IBM Japan. Most often found in the IBM PS/2 Model 25 and 30.

"The PS/2 Model 25, 25-286, 30, and 30-286 used an 8-bit pseudo-IDE hard drive interface at 3:1 interleave. Both power and data I/O are provided to the drive through a single card-edge connector."<ref>[https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/#post-167559 vwestlife. “Hard Drive for Ibm Ps/2 Model 25?” ''Vintage Computer Federation Forums'', 10 June 2008, https://forum.vcfed.org/index.php?threads/hard-drive-for-ibm-ps-2-model-25.11416/.]</ref>{{WikipediaInfoAlt|Device}}
{{DeviceAlerts}}
{{InfoboxDevice
|Title = 
|Picture = 
|Release Year = 
|Mounting Technology = 
|Capacitor Types = 
|Leak Risk = High
|Batteries = None
|Destructive Entry = No
}}


== Known Issues ==

===Symptom or Problem Encountered===
====Causes====
*
====Solutions====
*

== Disassembly Notes ==

Four Phillips screws.
== Original Parts ==
=== Controller Board – 6127880 – A07188 ===
[[File:WDI-325Q Front.jpg|thumb|'''WDI-325Q Front''']]
{| class="wikitable sortable"
|+Capacitor [[Capacitor Specifications|Specifications]] and  [[Part Footprints|Footprint]] Information
!RefDes
!Qty
!Capacitance
!Voltage
![https://caps.wiki/wiki/Part_Footprints Mount]
!Diameter/Size
!Height
!Lead Spacing
!Temp
![https://caps.wiki/wiki/Capacitor_Types Type]
!Brand
!Series
!Notes
|-
|C2, C9
|2
|47 µF
|16
|Through Hole
|6mm
|6mm
|5mm
|105 °C
|Electrolytic
|
|
|
|-
|C3, C4, C5, C6, C12
|5
|6.8 µF
|16
|Through Hole
|4mm
|6mm
|5mm
|105 °C
|Electrolytic
|
|
|C3 is unmarked
|-
|C7, C10, C11, C13
|4
|10 µF
|16
|Through Hole
|4mm
|6mm
|5mm
|105 °C
|Electrolytic
|
|
|
|-
|C8, C14
|2
|4.7 µF
|16
|Through Hole
|4mm
|6mm
|5mm
|105 °C
|Electrolytic
|
|
|
|-
|C1
|1
|100 µF
|6.3
|Through Hole
|6mm
|6mm
|5mm
|105 °C
|Electrolytic
|
|
|
|}
[[File:WDI-325Q.jpg|thumb|'''WDI-325Q Back''']]

==Replacement Parts==
===Basic PCB Name===
{| class="wikitable sortable"
|+Capacitors
! RefDes
! Qty
! Compatible Part Number
! Order Links
|-
|
|
|
|[https://www.digikey.com/ Digikey]
|}
''If parts are not available or different selection is preferred, you can use the values in the [[#Original_Parts|Original Parts]] section to perform a parametric search.''

== Related Links ==


== References ==
<references />