COM port test error message

[Areswu]

I was test COM port lookback test by Burn-In test V6.0.
I got the error message is : COM port detected a Receive Overrun Error
This error occur at 115200 baudrate setting.

but , I into WinXp Device Management to change default setting to 115200 baudrate at COM port property. and running Burn-in test as above error never happen.

please help us solving this problem .


Test Environment
1.OS : WinXP Sp3
2.Burn-in test V6.0 , COM port loopback test.
baudrate 115200

[David (PassMark)]

Serial port overruns are not something to be too concerned about.
They can happen if the machine is slow at high data rates,
under heavy load, or has a device driver that blocks
interrupt handling for a bit too long (e.g. a slow CD
drive access locks the machine for a couple of seconds).
They don't normally indicate a hardware fault. But can appear seemingly at random.