TYAN TOMCAT IVS D Manual page 37

w Peer Concurrency
When enabled, multiple PCI devices can be active at any one time.
When disabled, only one PCI device can have access to the PCI bus.
at any one time. The default is Enabled.
w Chipset Special Features
When disabled, the chipset behaves as if it were the earlier 430FX
chipset. This option should be enabled for best performance.
The default is Enabled.
w DRAM ECC/Parity Select
This item allows you to select between two methods of DRAM error
checking, ECC or Parity. Must have parity SIMMs to select ECC or
Parity. The ECC algorithm is built into the chipset and can correct
one bit errors. The default is Parity.
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