TYAN TOLEDO I3010W Manual page 22

Some chassis' include plastic studs instead of metal. Although the plastic studs
are usable, TYAN recommends using metal studs with screws that will fasten
the motherboard more securely in place.
Below is a chart detailing what the most common motherboard studs look like
and how they should be installed.
TIP: Use metal studs if possible, as they hold the motherboard into place more
securely than plastic standoffs.
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