To be fair to PG here I must say that my Audidgy 2 ZS Notebook Card with KX drivers does ASIO flawlessly set to 8.0 ms buffer.
The old RealTech AC97 that never had ASIO drivers is now using specially designed ASIO drivers by Lex Nahamury that also is flawless. I can run that one at 4ms buffer. Same computer.
An old Toshiba PIV 3.0 with 2G ram.
I've turned off hyperthreading for better video performance in RB.


John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
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