ASRock 939Dual-SATA2 User Manual - Page 14

2.4 Expansion Slots (Future CPU Port, PCI Slots, PCIE Slots, and AGP Slot) There are 1 Future CPU Port, 3 PCI slots, 2 PCIE slots, and 1 AGP slot on 939DualSATA2 motherboard. Future CPU Port (Yellow-Colored Port): Future CPU Port allows you to upgrade your AMD 939-Pin CPU to AMD 940-Pin CPU by installing an add-on ASRock M2CPU Board into this future CPU Port on 939DualSATA2 motherboard. Before you upgrade the 939-Pin CPU to the 940-Pin (M2) CPU, it is necessary to adjust the jumper settings for those required jumpers on 939DualSATA2 motherboard. Please refer to the table below for the correct jumper settings. This yellow-colored Future CPU Port is not an AGP slot! Please do NOT insert any AGP card into it! CPU Type 939-Pin CPU (Default) Jumper Settings 3 2 J3 3 2 J1 3 2 J4 3 2 J2 3 2 J7 3 2 J5 3 2 J8 3 2 J6 2_3 J11 2_3 J10 2_3 J9 940-Pin (M2) CPU (Using add-on ASRock M2CPU Board) 2 1 J3 2 1 J1 2 1 J4 2 1 J2 1_2 J11 1_2 J10 1_2 J9 14 2 1 J7 2 1 J5 2 1 J8 2 1 J6