Question
We have a QLogic Infiniband IBA7220 HBA installed in the PCI-E 8x slot of this motherboard.
The kernel reports "infinipath0: Performance problem: bandwidth to PIO buffers is only 380 MiB/sec". According to QLogic the solution is to put "MTRR mapping" in discrete mode in the BIOS but the AMI BIOS on this motherboard doesn't appear to have that option. Is there any method for affecting MTRR behavior on the X8DT3 motherboard?
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Answer
The MTRR mapping is discrete mode in current code. Unfortunately, AMI doesn't implement the program to switch to continue mode. So we do not support this option.
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