Question (Q&A-10):I'm using Intel FSB 400 MHz CPU, why does my DDR 333 only run DDR 266 on P4i45PE? (2003/8/15)
Answer:For P4i45PE, if you're running FSB 400 MHz CPU, DDR SDRAM only supports 200/266 MHz. If you're running FSB 533 MHz CPU, DDR SDRAM supports 266/333 MHz. If you're running FSB 800 MHz CPU, DDR SDRAM supports 400 MHz.
Question (Q&A-09):I'm using P4i45PE now. How do I run FSB 800 MHz correctly? (2003/7/9)
Answer:1.Please use Intel® FSB 800 MHz CPU for your system. 2. Please set FSB jumper in pin 2-3 (Test) 3. Please install one DDR400(PC3200) in slot 1. DDR SDRAM requires CL=2.5 or CL=2. Please also refer to P4i45PE memory support list. http://www.asrock.com/mb/memory/P4i45PE.pdf
Answer:Intel 845 chipset supports 1.5V signaling AGP cards only and the AGP slot on motherboard got 1.5V key in it following the AGP specification in order to prevent a 3.3V AGP card from being plugged in. However, it turned out some AGP adapters operate at only 3.3V signaling level, were notched at the 1.5V key on the golden-finger interface. When using these cards, if the Vddq and VCC3.3 signals are shorted on them, will break up the north bridge as the Vddq is raised from 1.5V to 3.3V instead. In other words, the motherboard will be permanently damaged as a result as soon as the system is powered up with such an AGP card. According to AGP specification, AGP4X mode will work at 1.5V signaling level only. If your AGP card has the 1.5V notch as illustrated in the user's manual but it cannot support AGP4X, please check with your card provider or manufacturer whether it can operate at 1.5V signaling level.