System Bios Cacheable - What does this mean

  [DELETED] 20:38 12 Jun 2006
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This is an option in bios setup menu which is set to disabled. What does this mean & should I have it enabled or disabled?

  [DELETED] 23:28 12 Jun 2006

" Options : Enabled, Disabled

This feature is only valid when the system BIOS is shadowed. It enables or disables the caching of the system BIOS ROM at F0000h-FFFFFh via the L2 cache. This greatly speeds up accesses to the system BIOS. However, this does not translate into better system performance because the OS does not need to access the system BIOS much.

As such, it would be a waste of L2 cache bandwidth to cache the system BIOS instead of data that are more critical to the system's performance. In addition, if any program writes into this memory area, it will result in a system crash. So, it is recommended that you disable System BIOS Cacheable for optimal system performance. "

That just about sums it up, so keep it disabled

Quote from click here

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