I've just upgraded my motherboard from P5WD2-E to P5WDH. Had my P4 920 running stable on 4.2Ghz (300 FSB at 1.35 vcore) for months on the P5WD2-E. I've had to settle for 4.1Ghz (295 FSB at 1.35 vcore) on the P5WDH.
Pretty sad. So much for 8 phase voltage regulation.
Pretty sad. So much for 8 phase voltage regulation.