Adrian's Rojak Pot has posted the downloadable PDF version of the BIOS Optimization Guide Rev. 6.20

Here are the changes since the last update :-

Added the following new BIOS options :-
- AGP 4X Drive Strength
- AGP Drive Strength P or N Ctrl

Rewritten the following BIOS option with new details :-
- Boot Other Device
- Memory Hole At 15M-16M
- Byte Merge
- HDD S.M.A.R.T. Capability
- EPP Mode Select
- PIRQ_0 Use IRQ No. ~ PIRQ_3 Use IRQ No.

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