Lanner-electronic FW-7650 Manuel d'utilisateur télécharger pdf (Page 37)

between the CAS and RAS strobe signals, used when DRAM is written to, read from, or

refreshed. Fast gives faster performance. This field applies only when synchronous

DRAM is installed in the system.

DRAM RAS# Precharge Time: If an insufficient number of cycles is

allowed for the RAS to accumulate its charge before DRAM refresh, the refresh may be

incomplete and the DRAM may fail to retain data. Fast gives faster performance; and

Slow gives more stable performance. This field applies only when synchronous DRAM

is installed in the system.

System BIOS Cacheable : Selecting “Enabled” allows caching of the system

BIOS ROM at F0000h – FFFFFh, resulting in better system performance. However, if

any program writes to this memory area, a system error may result. The settings are

“Enabled” and “Disabled”.

Video BIOS Cacheable: Selecting Enabled allows caching of the video BIOS

ROM at C0000h to C7FFFh, resulting in better video performance. However, if any

program writes to this memory area, a system error may result.

Memory Hole At 15M-16M: You can reserve this area of system memory for

ISA adapter ROM. When this area is reserved, it cannot be cached. The user information

of peripherals that need to use this area of system memory usually discusses their

memory requirements.

AGP Aperture Size : Select the size of the Accelerated Graphics Port (AGP)

aperture. The aperture is a portion of the PCI memory address range dedicated for

graphics memory address space. Host cycles that hit the aperture range are forwarded to

the AGP without any translation

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Lanner-electronic FW-7650 Manuel d'utilisateur Page 37