System Board and Memory Optimizations (Windows 95/98/Me)

Registry Guide for Windows
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Registry tweaks, tricks & hacks to optimize, enhance and secure Microsoft Windows.

System Board and Memory Optimizations (Windows 95/98/Me)
Category: Home > Hardware > Processor and Motherboard

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These settings allow you to optimize the AGP and PCI buses along with the system memory by reducing the number of wait states (idle time).

Open your registry and find the key below.

To decrease the PCI bus wait states create a new DWORD value called "PCIConcur" and set it to "1".

To decrease the AGP bus wait states create a new DWORD value called "AGPConcur" and set it to "1".

To decrease the DRAM memory wait states create a new DWORD value called "FastDRAM" and set it to "1".

Restart Windows for the change to take effect.

Note: Wait states are periods when the CPU or bus remain idle to allow other system components to catch-up. Therefore decreasing the wait states reduces the amount of time the CPU or bus stays idle.


(Default)	REG_SZ	(value not set)
AGPConcur	REG_DWORD	0x00000001 (1)
FastDRAM	REG_DWORD	0x00000001 (1)
PCIConcur	REG_DWORD	0x00000001 (1)


	HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\BIOS

Settings:

System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\BIOS]
Name: PCIConcur, FastDRAM, AGPConcur
Type: REG_DWORD (DWORD Value)
Value: 1 = reduce wait states

Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last Modified: September 16, 2002

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