Manual
Page 7
...to a hardware limitation, the PCIEX1_1 slot can only accommodate a shorter PCI Express x1 expansion card. GA-P55A-UD6 Motherboard Layout KB_USB R_SPDIF SYS_FAN3 ATX_12V_2X USB_1394_ESATA_2 USB_1394_ESATA_1 LGA1156 CPU_FAN PW_SW USB_LAN USB30_LAN JMB362 NEC AUDIO F_AUDIO PCIEX1_1 (Note 1) ...RTL8111D Intel® P55 RTL8111D PCH_FAN PCIEX16_1 CODEC CD_IN SPDIF_I PCIEX1_2 PCI1 PCIEX8_1 GA-P55A-UD6 TPM IC (Note 3) Marvell 9128 BATTERY B_BIOS S3_LED S0_LED M_BIOS S4_S5_LED S1_LED IT8213...
...to a hardware limitation, the PCIEX1_1 slot can only accommodate a shorter PCI Express x1 expansion card. GA-P55A-UD6 Motherboard Layout KB_USB R_SPDIF SYS_FAN3 ATX_12V_2X USB_1394_ESATA_2 USB_1394_ESATA_1 LGA1156 CPU_FAN PW_SW USB_LAN USB30_LAN JMB362 NEC AUDIO F_AUDIO PCIEX1_1 (Note 1) ...RTL8111D Intel® P55 RTL8111D PCH_FAN PCIEX16_1 CODEC CD_IN SPDIF_I PCIEX1_2 PCI1 PCIEX8_1 GA-P55A-UD6 TPM IC (Note 3) Marvell 9128 BATTERY B_BIOS S3_LED S0_LED M_BIOS S4_S5_LED S1_LED IT8213...