Solution:

The performance of PCA-6159 is same with or without enabling the "Memory Hole" function. As your know, the "Memory Hole" function influencs the system performance is just at the system BIOS with this bug. If you enable this function and the capacity of system memory is larger than 16M, you will find only 15M memory can be configured by OS such Windows 95 and Windows NT. So, the performance is down with little capacity of system memory. But, the PCA-6159 has fixed this problem and the BIOS version is V1.4. By this reason, our QE department passed the testing for "Memory Hole" function of PCA-6159.