A-Trend

A-Trend was a Taiwanese manufacturer of motherboards and sound cards for the IBM PC and its compatibles during the late DOS era.

 

ATC-1000+

Year: 1996?
Type: Socket 7
Form Factor: Baby AT
Power Connector: AT
Chipset: Intel 430VX
Slots: 4 x ISA (16-bit), 3 x PCI
Memory: 4 x 72-pin SIMM (max. 128 MB of EDO or FPM)
BIOS: Award v4.51PG
BIOS Dates:
Known Revisions:



ATC-1000 Premium

Year: 1996
Type: Socket 7
Form Factor: Baby AT
Chipset: Intel 430FX Triton I
Slots: 4 x ISA (16-bit), 4 x PCI
Memory: 4 x 72-pin SIMM slots (FPM or EDO, up to 128 MB)
BIOS: Award (unknown ver - 2A59CA29)
BIOS Dates: 03/20/96
Known Revisions:

The ATC-1000 supports Intel Pentium CPUs from 75 MHz up to 200 MHz. The Front Side Bus can be run at 50, 60 or 66 MHz. The 256 KB of L2 cache can be upgrade via the COAST slot for a total L2 supported of 512 KB.

This board supports Cyrix 6x86 from P120+ up to P150+.

 

ATC-1020

Year: 1996?
Type: Socket 7
Form Factor: Baby AT
Power Connector: AT
Keyboard Connector: AT
Chipset: Intel 430VX
Slots: 3 x ISA (16-bit), 4 x PCI
Memory: 4 x 72-pin SIMM, 1 x 168-pin DIMM (128 MB max.)
BIOS: Award v4.51PG
BIOS Dates:
Known Revisions:

This board is similar to the ATC-1000+ but exchanges one ISA slot for an extra PCI slot, and comes with a COAST slot for extra L2 cache. It supports Pentium P54C from 75 MHz up to 200 MHz, with core voltages from 2.7V up to 3.5V. It also allows Cyrix 6x86 or 6x86L CPUs: PR120+, PR133+, PR150+ or PR166+, and AMD K5 or K6 PR166 or PR200. The Front Side Bus will run at 50, 60 or 66 MHz.

Memory types that work in the 72-pin SIMM slots are Fast Page Mode and EDO.

Click here for the manual.

 

ATC-1030

Year: 1997?
Type: Socket 7
Form Factor: Baby AT
Power Connector: AT
Keyboard Connector: AT
Chipset: Intel 430VX
Slots: 4 x ISA (16-bit), 3 x PCI
Memory: 4 x 72-pin SIMM (maximum 128 MB FPM or EDO)
BIOS: Award v4.51PG
BIOS Dates:
Known Revisions:

CPUs Supported: Intel Pentium 75 - 233 MHz, Pentium MMX 166 - 233 MHz, AMD K6 (166 - 233 MHz), Cyrix 6x86MX.

 

 

ATC-1762

Year: ?
Type: Socket 3
Form Factor: AT
Chipset: ALI M1429
Slots: 3 (16-bit ISA), 3 x VLB
Memory: 72-pin SIMM and 30-pin SIMM, 6 slots in all.
BIOS: Award 4.50G
Known Revisions: 2.0

Bus speeds supported are 25, 33 and 40 MHz. 256 KB L2 cache onboard. This motherboard has a low-voltage regulator for which you can also install CPUs like the Intel 486DX4-100 100MHz or the IBM 5x86C 100MHz without using a voltage adapter.

ATC-2000

Year: ?
Type: Socket 7
Form Factor: AT
Power Connector: AT
Keyboard Connector: AT
Chipset: Intel 430HX
Slots: 4 (16-bit ISA), 4 x PCI
Memory: 4 x 72-pin SIMM (up to 256 MB of FPM or EDO)
BIOS: Award 4.50G
Known Revisions: ?

CPU Support: Intel Pentium P54C and P55C (2.8V) from 75 up to 200 MHz, Cyrix 6x86/L PR120+, PR133+, PR150+ or PR166+, AMD K5 PR75, PR90, PR100, PR120, PR133 or PR166, and AMD K6 PR166 or PR200.

Comes with either 256 KB or 512 KB of L2 cache onboard.

The FSB can be driven at 50, 55, 60 or 66 MHz, with CPU clock mulitpliers of 1.5x, 2x, 2.5x or 3x.

 

ATC-5000

Year: 1998
Type: Super Socket 7
Form Factor: Baby AT
Power Supply: AT
Chipset: Intel 430TX
Slots: 4 x PCI, 3 x ISA
Memory: 4 x 72-pin SIMMs, 2 x 168-pin DIMMs
BIOS: Award
Known Revisions: ?

 

ATC-5200

Year: 1998
Type: Super Socket 7
Form Factor: Baby AT
Power Supply: AT and ATX
Chipset: VIA MVP3
Slots: 4xPCI, 2xISA, 1xAGP
Memory: Three 168-pin DIMM slots (384 MB max. memory) - Up to PC100 SDRAM or EDO.
BIOS: Award
Known Revisions: ?

This appears to be a decent Super 7 board, supporting 100 MHz FSB, has 512 KB of L2 cache onboard though the MVP3 chipset only has capacity to cache the first 128 MB of main memory.

CPU support for this fairly late Super 7 mobo is as you would expect, with AMD K6 and K6-2 being the most popular at the time, though it also caters for Intel Pentium MMX and Cyrix MII. CPU clock multipliers are 1.5x up to 5.5x, with voltages of 1.8, 2.2, 2.7, 2.8, 2.9, 3.2, 3.3 and 3.5V.

Anandtech did a review when this board was released - it wasn't particularly favourable, with the board failing to provide a single USB port and overall stability in question.

 

 

ATC-5220

Year: ?
Type: Super Socket 7
Form Factor: ATX
Power Connector: ATX
Keyboard Connector: AT
Chipset: VIA MVP3
Slots: 2 x ISA (16-bit), 4 x PCI, 1 x AGP
Memory: 3 x 168-pin DIMMs (up to 768 MB max.)
BIOS: ?
Known Revisions: ?

This board supports AMD K6-2+ and K6-3+ CPUs.

Support up to 66, 68.5, 75, 83.3, 95, 100 and 112 MHz FSB speeds.

CPUs supported are: Intel Pentium, Pentium MMX, AMD K5, AMD K6, Cyrix 6x86/6x86MX/MII and IDT Winchip C6. Core CPU voltages range from 2.0V, 2.2V, 2.8V, 2.9V, 3.2V, 3.3V and 3.5V.