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Dell OptiPlex GX1p User Manual

Page 64

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3-2

Dell OptiPlex GX1/GX1p Managed PC and OptiPlex NX1 Net PC Systems Service Manual

1-3-1

Main-memory refresh verifi-
cation failure

Faulty or improperly seated
DIMM or defective system
board

1-3-2

No memory installed

No memory installed or faulty
or improperly seated DIMM

1-3-3

1-3-4

1-4-1

1-4-2

2-1-1
through
2-4-4

Chip or data line failure in the
first 64 KB of main memory

Odd/even logic failure in the
first 64 KB of main memory

Address line failure in the
first 64 KB of main memory

Parity failure in the first
64 KB of main memory

Bit failure in the first 64 KB of
main memory

Faulty or improperly seated
DIMM

3-1-1

3-1-2

3-1-3

3-1-4

Slave DMA-register failure

Master DMA-register failure

Master interrupt-mask regis-
ter failure

Slave interrupt-mask register
failure

Defective system board

3-2-4

Keyboard-controller test
failure

Faulty keyboard controller
(defective system board)

3-3-4

3-4-1

3-4-2

Screen initialization failure

Screen-retrace test failure

Search for video ROM failure

Faulty video subsystem
(defective system board)

4-2-1

4-2-2

4-2-3

4-2-4

No timer tick

Shutdown failure

Gate A20 failure

Unexpected interrupt in
protected mode

Defective system board

4-3-1

Memory failure above
address 0FFFFh

Faulty or improperly seated
DIMM

4-3-3

Timer-chip counter 2 failure

Defective system board

7DEOH 3267 %HHS &RGHV FRQWLQXHG

%HHS &RGH

(UURU

3UREDEOH &DXVHV