Solution:

When link two machines or communicate with server in heavy loading, PCA-6154 Rev.A3 sometimes has communication error problem. The network firmware configuration causes the problem on RTL8139A of PCA-6154 Rev. A3. Please follow the following process: #### Modification process ############# Update the new firmware of the network can make system link more stable. Please do the following steps Upgraded EE PROM configuration (RTL8139A) : 1. Copy all the attached files into your disk ( please use the new attached files, not the ones in my previous email ). 2. Run " NewID 8139A.cfg " to reassign the ID Code (Please type the number as same as printed in the lable on the RTL 8139A chip ). 3. Run " PG8139.exe " to reconfigure the EEPROM 4. Please make sure that your "L2 cache memory" is set to be "7 bit" in CMOS setting.