Screen Message Probable Cause Recommended Action
163–Time and Date
Not Set
Invalid time or date in
configuration memory.
RTC (real-time clock) battery
might need to be replaced.
1. Set the date and time under Control
Panel or in F10 Setup, depending on the
operating system.
2. If the problem persists, replace the RTC
battery.
164–Memory Size Error The system memory size has
changed since the last boot.
1. Pressing F1 will record the
configuration.
2. If the problem persists, be sure memory
modules (if any) are installed correctly.
3. If third-party memory has been added,
test using HP memory only.
4. Verify proper memory module type.
201–Memory Error The memory test performed
during startup failed.
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Run Computer Setup (F10 Setup) or
Windows utilities.
2. Ensure that memory modules are
installed correctly.
3. Verify proper memory module type.
4. If third-party memory has been added,
test using HP memory only.
5. Remove and replace memory modules
one at a time to isolate faulty module.
6. Replace the faulty memory modules.
7. If error persists after replacing memory
modules, replace the system board.
207–ECC Corrected
Single Bit Errors in DIMM
slot(s)
Corrected ECC error(s)
detected.
CAUTION: Disconnect AC power from the
workstation before reseating or replacing
components because there is power to the
system board even when the workstation is
powered down.
1. Verify proper memory module type.
2. Verify 3rd party/HP memory.
3. Try another memory socket.
4. Replace memory module if problem
persists.
Table 6-18 POST error messages (continued)
ENWW POST error messages 161
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