Epson Equity 386SX/20 PLUS Dimensions

EPSON

Product Support Bulletin

Subject: Proper Method for Running Benchmark and Diagnostics Programs

Date: 06/04/93 PSB No: S-0158

Page(s): 1 of 1 Originator: MWT

This bulletin describes the proper method for running any benchmark or diagnostics

programs. This applies to any computer system.

In most cases, the computer should be started using an MS-DOS boot diskette

that’s ‘clean’ -

in other words, one with no CONFIG.SYS or AUTOEXEC.BAT files.

The appropriate executable can then be run, either from diskette or hard drive.

There will be some exceptions to the above rule. In attempting to benchmark or

troubleshoot any add-on that requires a device driver (CD-ROM, local area network,

etc.), obviously the necessary device driver(s) must be loaded. Also, some

programs will require a minimum number of FILES or BUFFERS to be defined in

the CONFIG.SYS file. Such programs will usually display this requirement if they

are run without the necessary CONFIG.SYS file.

For the most consistent results, use the absolute minimal boot configuration that’s

allowed by the hardware being tested.

EPSON

AMERICA.

NC. EPSON

Product Support Bulletin

Subject: Windows 3.1 Display Drivers for the Equity 386SX/20 PLUS

Date: 04/02/93

Page(s): 1 of 1PSB No: S-0150A

Originator: MWT/KAS

The purpose of this bulletin is to inform you of the release of display drivers for

Windows 3.1 for the Equity 386SX/20 PLUS. These drivers support resolutions

of up 640 x 480 x 256 colors and 1024 x 768 x 16 colors. This driver set is

available from the Epson Product Support Bulletin Board System. The filename

is SX20PW31.EXE and is in the DRIVERS file library. This is a self-extracting

file - download it with protocol (such as XMODEM) and then execute the file.

The archive also contains an ASCII text file named READ.ME which gives the

installation instructions. Download time at 2400 baud is approximately 40

minutes.

EPSON

Product Support Bulletin

Subject: Equity Series SIMM Compatibility

Date: 12/4/91

Page(s): 1 of 1

PSB No: S-0136

Originator: JAD

Due to the influx of third party SlMMs on the market, there are some that are not

compatible with Epson products. This bulletin is intended to be an aid in ensuring

that only compatible SlMMs are chosen for use in Epson’s Equity Series of

computers.

The SlMMs in question were SEIMENS, CUMULUS and KINGSTON. Installing these

SlMMs in Epson products may cause the following errors:

Parity Check 1

18FFFE 0000 202 Memory Address Error

164 System Options Not

Set

1500 E000 201” DOS RAM Address Error

It was thought that the chips used in these SlMMs were of poor quality.

Epson Portland evaluated the SlMMs in question and found that this was not true.

The problem is caused by the SIMM circuit boards (ITE and TECAP circuit boards)

used to manufacture the SIMM modules. The dimensions of these boards are not

compatible with industry standard SIMM sockets. This may result in incomplete

contact between the SIMM assembly and it’s socket. This is caused by insufficient

size of the contact surfaces in these products. Also enlarged holes in the TECAP

product allow the component pin to pass entirely through the hole without making

contact.

It is recommended that only SIMMS meeting industry standard contact surface

specifications be used in Epson Equity computer products.

Some recommended SlMMs that were tested and found Compatible are:

Toshiba

Matsushita

CDC Enterprises

Samsung

Aculogic

For more information contact Technical Support.

PSB No.: S-0062I

Page: 1 of 18

EQUITY 386SX/16 PLUS

VER PART DESC TYPE LOC REASON

Y705590825 CTRTD-A02 27C010 U9 INITIAL RELEASE

073092 2011051 System Bios 27C010 U9 Rapid keystrokes on all area 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: EQ386SX/16+-001

(4/2/93).

EQUITY 386SX/20 PLUS

VER PART DESC TYPE LOC REASON

1.04 CSTH-A04 27C010 U13 INITIAL RELEASE

1.05 CSTH-A05 27C010 U13

1.06 Y723806005 CSTH-A06 27C010 U13 Rapid keystrokes using the

enhanced 10-key area of the

keyboard. This problem may

cause shift key lock and/or

keyboard lockup.

See ECN No: EQ386SX/20+-002

(2/7/92).

EQUITY 320SX PLUS

VER PART DESC TYPE LOC REASON

101891-KZ 320SXROM AMI 27C010 U9 INITIAL RELEASE

073092 2011037 AMI 27C010 U9 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: EQ320SX+-001 (4/2/93).

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