Pine Technology PT-431A User Manual page 14

486 pci/isa main board (486sx / dx / dx2 / dx4)
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Connect the cooling fan power cable to this connector, then the cooling fan can be controlled by power supply or CPU, please
refer to JP43 as well.
JP42 : Power Good Generator
1-2
On Board Power Good Generator
2-3
Power Supply Power Good
Most power supplies produce a 'Power Good' signal which recognizes that the system board is stable enough to release the power
to, however this mother board also includes an on-board Power Good circuit for additional safety.
JP43 : Cooling Fan Control
1-2
Control By CPU
2-3
Control By Power Supply
This mother board has been equipped with an on-board power connector for the CPU cooling fan. The advantage of this feature is
that as well as the CPU, the cooling fan itself can be slowed down according to the power management settings in the Green
system BIOS. Here there are options for control by BIOS or cooling fan permanently on.
JP44 : Cache Size Select
Cache Size
JP44
128KB
OPEN
256KB
1-2
512KB
1-2,3-4
Cache RAM
Tag RAM
32K8 x 4
8K8 x 1
64K8 x 4
32K8 x 1
128K8 x 4
64K8 x 1
14

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