Here's a portion of that Readme...note the I-Opener chipset is not specifically named. The next version ("coming soon") may apply.
Memory Interleave Enabler
for VIA Chipsets
Questions and Answers
Copyright (C) 2001, George E. Breese. All Rights Reserved.
Version 0.12 4/2/01
This product CAN DAMAGE A COMPUTER. Use it carefully and at your own risk.
If you have installed a previous version of this driver, uninstall it before installing this version.
License: This software is licensed, not sold. The author of this product has granted you a license to use this product, subject to the
following conditions. By possessing, using, or attempting to use this product, you assume all liability for its use. You agree never to
take legal action, civil or criminal, against its author for any reason. You may redistribute this product in its original form only. You
may not charge money for distribution of the product, unless all such charges are remitted to the author immediately upon payment.
The author retains ownership of all intellectual properties embodied in this product.
What is it?
This is a driver for Windows 9X, NT, and 200X. It will increase the speed of certain computers.
When installed on a computer whose motherboard contains certain VIA chipsets, this driver will reprogram the VIA chipset in order to
maximize the speed of the computer's RAM.
How does it work?
This driver takes control of the main VIA-branded chip on the computers' motherboard, which is the chip responsible for connecting
the CPU to the RAM and ROM and PCI and AGP and so forth. This driver adjusts the way that the VIA chip communicates with the
Do I need it?
If your computer has one of the following VIA chips on its motherboard, you might need this driver. In all other cases, you do not
need this driver.
MVP3 or MVP3G, labeled "VT82C598"
MVP4, labeled "VT82C501"
Apollo Pro, Pro Plus, Pro133, Pro133A; labeled "VT82C691" or "VT82C693" or "VT82C693A" or "VT82C694X"
KX133, labeled "VT8371"
KT133, labeled "VT8363"
If you own a computer whose motherboard contains one of the chipsets, then you might need it. To confirm that your computer has
the correct chipset, try any of the following.
Open the computer and examine the motherboard. A large, flat, square chip near the CPU will have the VIA logo and the part
number. This chip may be under a heat sink and may be difficult or impossible to read, in which case you will have to try a
Download Sisoft Sandra. Examine its Mainboard Information. The 2001 edition of Sandra should identify the chipset clearly.
Use a PCI identification utility to obtain a list of the PCI devices in the computer. The correct chip has vendor number 0x1106
and ID number 0597, 0598, 0691, 0391, or 0305.
Refer to your motherboard manual.
Your computer might already have interleave enabled, in which case you will not need this driver. You can use Sisoft Sandra 2001
to check the computer's current use of memory interleaving. Use the Mainboard Information screen. Scroll down to "Logical/Chipset
Memory Banks". Look at the "Bank Interleave" setting. If the setting is "2-way" or "4-way", then you do not need this driver.
Why do I need it?
ViaTech (www.viatech.com, or www.via.com.tw) has included a "memory interleave" feature in their chipsets since 1997. Many
motherboard makers chose not to enable it, however. This feature can drastically improve the speed of memory access, but only if it
is switched on.
I only have one memory module. Can I use interleaving?
Generally, yes. In this kind of interleaving, the chipset can remember the location of up to four recently-used "pages" of memory on
the module and can return to them instantly. Depending on the chipset, it can also remember the last four pages per module, for a
total of sixteen pages. When the CPU needs to access these pages, the VIA chipset can access them quickly without having to
calculate their location.
The amount of interleaving depends on the size and type of the memory chips on the computer's RAM modules. SDRAM is required.
If the chips on the modules store 16 megabits each, the VIA chipsets can achieve two-way interleaving; if the chips are 64 megabits,
four-way interleaving is possible."