Frequently Asked Questions
A-2
Q: What is MMX?
A: MMX is the new single-line multiple-instruction technology of the new Intel
Pentium PP/MT (P55C) and Pentium II (Klamath) CPU. The AMD K6 and
Cyrix M2 will support MMX, too. The MMX instructions are specifically useful
for multimedia applications (such as 3D video, 3D sound, video conference).
The performance can be improved if applications use these instructions. All
AOpen MBs have at least dual power onboard to support MMX. It is not
necessary to have special chipset for MMX CPU.
Q: What is the performance improvement of Pentium II (Klamath)?
A: Following is the comparison table of the new generation CPU.
DRAM : 64MB EDO or SDRAM
HDD : Quantum Fireball 1280AT
VGA : Matrox Millennium VGA, 4MB, 1024x768 24bit, 85Hz.
OS : Windows 95 4.00.950
CPU MB Chipset Winstone97
Business
Winstone97
High-End
PP/MT-200 AP5T/AX5T Intel 430TX 48.3 21.9
PP/MT-233 AP5T/AX5T Intel 430TX 50.5 23.6
Pentium II 200 AX6F Intel 440FX 45.3 24.1
Pentium II 233 AX6F Intel 440FX 48.4 26.5
Pentium II 266 AX6F Intel 440FX 50.8 28.2
Pentium II 266 AX6L Intel 440LX 54.5 30.8
You can see that Klamath-233 is no better than PP/MT-233 on Business
Winstone97, but it has large improvement on High-End Winstone97. It is
probably because Klamath has very good floating point performance and is
suitable for graphic operation.
Q: What is USB (Universal Serial Bus)?
A: USB is a new 4-pin serial peripheral bus that is capable of cascading
low/medium speed peripherals (less than 10Mbit/s) such as keyboard, mouse,
joystick, scanner, printer and modem/ISDN. With USB, the traditional
complex cables from back panel of your PC can be eliminated.
You need the USB driver to support USB device(s). AOpen MBs are all USB
ready, you may get latest BIOS from AOpen web site
(http://www.aopen.com.tw). Our latest BIOS includes the keyboard driver
(called Legacy mode), that simulates USB keyboard to act as AT or PS/2
keyboard and makes it possible to use USB keyboard if you don't have driver
in your OS. For other USB devices, you may get the drivers from your device
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