NCD Explora 450 Series, Инструкция по установке

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Installing Additional Memory
Installing Optional Equipment in the Monitor Support Base 6-3
Caution
If you do not feel confident performing the following procedure on your NC, send
the NC to a qualified service center.
Installing additional memory is a four-step procedure described in detail on
the following pages:
1. Disassemble the
NC
. See “Disassembling the Monitor Support Base” on
page 6-4.
2. Install the
SIMM
(s). See “Installing SIMMs” on page 6-6.
3. Reassemble the
NC
. See “Reassembling the Monitor Support Base” on
page 6-10.
4. Test the memory after your
NC
is up and running. See “Testing Memory”
on page 6-11.
The only tool you need is a small flat-blade screwdriver.
Table 6-2 SIMM Specifications
Speed Fast-page mode (Explora 400) or EDO (Explora 450). 60
nanoseconds (ns) or faster. (Lower ns ratings are faster.) 72-pin.
Profile Low profile (maximum 1.1 inches (28 mm) tall). Use tin-plated
SIMM
contacts.
Thickness Board thickness of 0.047 inches to 0.054 inches (0.050 inches (1.27
mm) nominal). Installing
SIMMs
that are out of specifications
might damage the
SIMM
slot or cause the
NC
to behave
erratically.
Size 32-bits wide.
1
MB
(256Kx32
SIMM
)
2
MB
(512Kx32
SIMM
)
4
MB
(1Mx32
SIMM
)
8
MB
(2Mx32
SIMM
)
16
MB
(4Mx32
SIMM
)
32
MB
(8Mx32
SIMM
)