Troubleshooting
ROBO-8712E Series User’s Manual
5-7
5.2
Frequency Asking Questions
Q: Why the system could not work with Mobile Intel Pentium 4 processor?
A:
There is a jumper setting of the “J32”, which near the CPU Heat-sink holder on
the bottom of the system board. Please check the Jumper Setting for J32. Please
short the jumper J32 to enable the Mobile Pentium 4 MPM Support. After
changed the CPU, please clear the CMOS setting by the “JP1” jumper to reset the
BIOS setting for CPU detection.
To short this jumper setting is required for both Mobile Intel® Celeron® M
Processor, and Mobile Intel® Pentium® 4 Processor. Please check and make sure
this jumper setting when use the Mobile Intel® Celeron® M Processor, or Mobile
Intel® Pentium® 4 Processor.
On the contrary, please leave the jumper “J32” open for using the Intel Pentium 4
Processor with Hyper-Threading Technology, and Intel Pentium 4/ Celeron
Processor.
Q: Why the system had rapid alarm sound with DDR266 SDRAM Memory
installed?
A: Please notify. When using Pentium 4 Processor with Hyper-Threading
Technology FSB 800 MHz processor, then must using 400MHz DDR SDRAM.
Basically, the board can detect the memory clock frequency automatically. To
match with the CPU PSB BUS frequency, the board will down grade the memory
clock frequency to meet the CPU PSB BUS frequency. But it cannot up grade for
over-clocking.
Also, Please check the “Clock Latency” value of the DDR DIMM. Please check
the “Clock Latency” value to meet the specification of the DDR DIMM in the
BIOS setting.
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