Gigabyte GA-6UASL1 User Manual page 48

Recorder Mode
When this mode enabled, only text will be send. This is to capture Terminal data.
Options available: Enabled/Disabled.
Resolution 100x31
Enables or disables extended terminal resolution.
Options available: Enabled/Disabled.
Legacy OS Redirection Resolution
On Legacy OS, the number of Rows and Columns supported redirection.
Options available: 80x24/80X25.
BIOS Setup - 48 -