Product Support Bulletin

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EPSON

AMERICA,

INC.

EPSON

Product Support Bulletin

Subject:

Common Questions and Answers for the Epson Equity 4SX/25, 4DX/33

and 4DX2/50 Computers

Date: 04/02/93

Page(s): 1 of 8

PSB No: S-0155

Originator: SLS

GENERAL

Q1.

What an? the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers?

The Epson 4SX/25, 4DX/33 and 4DX2/50 represent Epson’s new family of

entry-level computer products. Along with an affordable price, the new

Equity 4 series offers Intel™ i486™ processing power and upgrade

solutions for a wide range of computing applications. In addition to the

performance that these systems offer, users will appreciate the

convenience of a small footprint, complete system integration and pre-

loaded software. Key features include:

Choice of Intel 486SX/25, 486DX/33 or 486DX2/50 processor

Built-in math coprocessor (40X/33 and 4DX2/50); math coprocessor

support in the 4SX/25 model

Intel OverDrive

Support (4SX/25 and 4DX/33)

Zero Insertion Force (ZIF) socket for easy processor upgrades

8KB internal cache (built-in CPU)

Small-footprint case incorporates

- four ISA 16-bit option slots

- two externally accessible drive bays and one internal drive bay

- built-in Super VGA video adapter

- built-in serial, bi-directional parallel, mouse and keyboard ports

- built-in floppy and IDE hard drive controller/interface

Choice of 120MB or 240MB hard disk drive

4MB of RAM; upgradeable to 32MB via SlMMs

Summary of content (9 pages)

PAGE 1
EPSON EPSON AMERICA, INC. Product Support Bulletin Subject: Common Questions and Answers for the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 Computers Date: 04/02/93 Page(s): 1 of 8 PSB No: S-0155 Originator: SLS GENERAL Q1. What an? the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Epson 4SX/25, 4DX/33 and 4DX2/50 represent Epson’s new family of entry-level computer products.
PAGE 2
PSB No: S-0155 Page: 2 of 8 Q1. A. What an? the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? (continued) l l l 512KB video memory; upgradeable to 1MB providing True Color support Alternate VGA feature connector for additional graphics capabilities System and video BIOS can be relocated in shadow RAM for increased system performance 0. ROM based system SETUP l Password security l Virus warning abilities included in BIOS l Bundled with MS-DOS® 5.0*, Microsoft® WindowsTM 3.
PAGE 3
PSB No: S-0155 Page: 3 of 8 Q4. What levels of password security are provided with the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Equity 4 series of computers offer two levels of password security to insure that unauthorized users do not change the system’s SETUP configuration or obtain access to the system. - Password security to obtain system access - Password security to access SETUP menus CPU Q5. What microprocessors are being offered with the Epson Equity 4 series computers? A.
PAGE 4
PSB No: S-0155 Page: 4 of 8 BIOS Q7. What B/OS comes with the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Equity 4 series computers incorporate an AWARD BIOS that contains both the system and video BIOS. The AWARD BIOS is contained in a single EPROM device that is installed in a pluggable socket on the main system board. Q8. How is SETUP accessed and what information is contained in Setup? A.
PAGE 5
PSB No: S-0155 Page: 5 of 8 VIDEO Q9. What video adapter comes standard built-in) with the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Equity 4 series computers utilize a Cirrus GD5422 VGA graphics controller as its built-in video adapter. These computers include 512KB of video memory which may be upgraded to a full 1MB of memory by installing pluggable memory chips. The Cirrus VGA graphics controller is 100% hardware and BIOScompatible with IBM® VGA display standards. Q10.
PAGE 6
PSB No: S-0155 Page: 6 of 8 Q11. What video modes are supported by the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? List below is a table that shows the Epson Equity 4 series computer’s supported video modes and the memory requirements to obtain each mode: Note: An "*" indicates a Hi-Color mode and an ‘**’ indicates True Color mode. Q12.
PAGE 7
PSB No: S-0155 Page: 7 of 8 MEMORY Q13. What is the standard memory configuration and maximum amount of system memory that can be used in the Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Epson Equity 4 series computers come standard with 4MB of system memory. This memory is provided by a 4MB SIMM installed in SIMM socket 0 on the main system board. There is a total of two SIMM sockets on the main system board. These sockets accept 1 MB, 4MB or 16MB SIMMs.
PAGE 8
PSB No: S-0155 Page: 8 of 8 MASS STORAGE Q15. What factory floppy and hard disk drive configurations are offered with the Equity 4SX/25, 4DX/33 and 4DX2/50 computers? A. The Epson Equity 4SX/25, 4DX/33 and 4DX2/50 computers are available in three factory configurations. All three configurations come standard with a 1.44MB floppy disk drive. Listed below are the factory configurations: l l l 3.5” 1.44MB floppy disk drive 3.5” 1.44MB floppy disk drive/120MB IDE hard disk drive 3.5” 1.
PAGE 9
PSB No.: S-0062I Page: 1 of 18 EQUITY 386/33 PLUS VER PART # Y707590802 AMI 27C512 U29 INITIAL RELEASE 061892 201078300 AMI 27C512 U29 Rapid keystrokes on all areas of the keyboard may cause a shift key lock and/or keyboard lockup. In some rare cases, improper keyboard timing may cause intermittent system boot failure. See ECN No: EQ386/33+-001 (2/5/93). 031892 DESC TYPE LOC REASON ENDEAVOR / EQUITY 4 VER 1.