This information applies to the A4000 and A5000.

The A4000 and A5000 have storage options and memory expansion options to enhance performance and functionality. An internal hard drive (IDE or SCSI) or ATAPI Zip drive can be installed to increase storage capacity. Sample memory can be increased by installing commercially available SIMMs. All optional memory and storage devices must conform to the following specifications:
Internal Hard Drives
* 3.5 inch internal hard drive
* Power supply - +5V maximum 2400 mA
* Interface - 50-pin SCSI, or 40-pin EIDE

Internal Zip Drives
* Power supply - +5V, 0.8A
* Interface - 40-pin ATAPI

External CD-R/RW Drives
* Interface - 50-pin SCSI

Expansion Memory
* Type - 72-pin SIMM modules (requires identical size if used in pairs)
* Bit Width - x32 bit (no parity) or x36 bit (parity)
* Size - 4MB, 8MB, 16MB, or 32MB

Yamaha Approved Memory and Storage Devices:

NOTE: Refer to the A4000/A5000 Owner's Manual, p. 232 - 247, for instructions on how to install optional memory and storage devices.
INTERNAL HARD DRIVES
Manufacturer Part Name/Number Capacity Interface
Seagate ST34311A 4.3GB ATAPI-IDE, 40 PIN
Seagate ST36421A 6.4GB ATAPI-IDE, 40 PIN
Seagate ST38421A 8.4GB ATAPI-IDE, 40 PIN
Seagate ST310212A 10.2GB ATAPI-IDE, 40 PIN
Seagate ST315323A 15.3GB ATAPI-IDE, 40 PIN
Seagate ST320423A 20.4GB ATAPI-IDE, 40 PIN
Western Digital AC313000 13GB ATAPI-IDE, 40 PIN
QUANTUM FireBall CR4.3AT 4.3GB ATAPI-IDE, 40 PIN
QUANTUM FireBall CR6.4AT 6.4GB ATAPI-IDE, 40 PIN
QUANTUM FireBall CR8.4AT 8.4GB ATAPI-IDE, 40 PIN
QUANTUM FireBall CR13.0AT 13GB ATAPI-IDE, 40 PIN
IBM DCAS-32160 2 GB SCSI, 50 PIN
IBM DCAS-34330 4 GB SCSI, 50 PIN
IBM DNES-309170 9.1GB SCSI, 50 PIN
SEAGATE ST52160N 2.1GB SCSI, 50 PIN
QUANTUM FireBall ST2160S 2 GB SCSI, 50 PIN
QUANTUM FireBall ST3240S 3 GB SCSI, 50 PIN
QUANTUM FireBall ST4320S 4 GB SCSI, 50 PIN
QUANTUM FireBall QSE2100S 2.1GB SCSI, 50 PIN
QUANTUM FireBall QSE3200S 3.2GB SCSI, 50 PIN
QUANTUM FireBall QSE4300S 4.3GB SCSI, 50 PIN
QUANTUM FireBall ST6480S 6.4GB SCSI, 50 PIN
QUANTUM FireBall QSE6400S 6.4GB SCSI, 50 PIN
QUANTUM FireBall QSE8400S 8.4GB SCSI, 50 PIN
INTERNAL ZIP DRIVES
Manufacturer Part Name/Number Capacity Interface
Iomega Internal ATAPI Zip Drive 100 MB ATAPI-IDE, 40 PIN
NOTE: Since the listed hard drives were tested, many of the models have been discontinued; however, most current IDE or SCSI hard drives should be compatible. Many external SCSI versions of these drives should also be compatible. An A4000 can format and utilize a maximum of 8GB, even if the hard drive itself has a capacity greater than 8GB.

SIMM EXPANSION MODULES
Manufacturer Part Number Capacity Access Parity
Green House GH-32E1020/60 4MB 60ns no
Hitachi HB56A132BV-7B 4MB 70ns no
Hitachi HB56A132BV-6B 4MB 60ns no
Hitachi HB56G132B-6 4MB 60ns no
Toshiba THM3210B0ASG-70 4MB 70ns no
Green House GH-32E2040/60 8MB 60ns no
Melco VMB 8MB 70ns yes
Melco VMC-W 8MB 60ns no
Melco VMB-P 8MB 70ns yes
Fujitsu MB85342C-70 8MB 70ns no
Hitachi HB56A232BW-7C 8MB 70ns no
Hitachi HB56H232B-6N 8MB 60ns no
Green House GH-S324MA/60 16MB - -
Green House GH-324MA/60 16MB 60ns no
Green House GH-P324MA/60 16MB 60ns no
Green House GH-32E4MA/60 16MB 60ns no
Hagiwara Syscom HWD-DNE32X 16MB - no
Melco VMC-W 16MB 60ns no
Melco VMH 16MB 60ns no
Fujitsu MB85391A-60 16MB 60ns no
Hitachi HB56A432BR-7A 16MB 70ns no
Hitachi HB56A432BR-7B 16MB 70ns no
Hitachi HB56A432BR-7 16MB 70ns no
Green House GH-S328MA/60 32MB - -
Green House GH-P328MA/60 32MB 60ns no
Green House GH-32E8MA/60 32MB 60ns no
Hagiwara Syscom HWD-DNE64X 32MB - no
Melco VMC-W 32MB 60ns no
IO Data SIM326 - 32MT 32MB 60ns no
Fujitsu MB85392A-60 32MB 60ns no
Toshiba THM328020BSG-70 32MB 70ns no
Hitachi HB56A832BS-6 32MB 60ns no