hwinfo --cpu (Tyan K8E) gives less GHZ than other motherboards

Hello I got a Tyan K8E and loaded SuSE 9.3 on it. With the original BIOS (1.0), hwinfo --cpu reports 1.0GHz. With the latest and greatest BIOS 2.01, hwinfo --cpu reports 1.8GHz. This is with an AMD Athlon 64 3000+. Two other motherboards (Gigabyte and Asus) report 2.0GHz with the same CPU. I wrote a device driver and also compared TSCs and jiffies and got the same results. Does anyone else see this? No answer from Tyan yet. TIA & Cheers