Fpc7915 – Acnodes FPC 7915 User Manual
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FPC7915
15-inch touch Panel PC
Atom N270 fan less all-in-one system
This parameter allows you to configure the system based on the specific features of the installed
chipset. The chipset manages bus speed and access to system memory resources, such as
DRAM and the external cache.
It also coordinates communications between conventional ISA bus and the PCI bus. It must be stated
that these items should never need to be altered. The default settings have been chosen because they
provide the best opera- ting conditions for the system. The only time you might consider making any
changes would be if you discovered that data was being lost while using your system.
DRAM TIMEING SELECTABLE:
The value in this field depends on performance parameters of the installed memory chips (DRAM). Do
not change the value from the factory setting unless you install new memory that has a different perfor-
mance rating than the original DRAMs.
CAS LATENCY TIME:
When synchronous DRAM is installed, the number of clock cycles of CAS
latency depends on the DRAM timing.
DRAM RAS# TO CAS# DELAY:
This item let you insert a timing delay between the CAS and RAS strobe signals, used when DRAM is
written to, read from, or refreshed. Fast gives faster performance; and Slow gives more stable perfor-
mance. This field applies only when synchronous DRAM is installed in the system. The choices are 2
and 3.
DRAM RAS# PRECHARGE TIME:
If an insufficient number of cycles is allowed for the RAS to accumulate its charge before DRAM re-
fresh, the refresh may be incomplete and the DRAM may fail to retain data. Fast gives faster perfor-
mance; and Slow gives more stable performance. This field applies only when synchronous DRAM is
installed in the system. The choices are 2 & 3.
PRECHARGE DEALY (tRAS):
Precharge Delay This setting controls the precharge delay, which determines the timing delay for
DRAM precharge