
Express-BE Page 9
2. Specifications
2.1. Core System
¾ CPU: Dual or quad-core AMD R-Series APU (codename: Bald Eagle)
• RX-427BB 2.7 GHz (3.6 GHz boost), 35W (4C/8CU)
• RX-425BB 2.5 GHz(3.4 GHz boost), 35W (4C/6CU)
• RX-225FB 2.2 GHz (3.0 GHz boost), 17W (2C/3CU)
Supporting: AMD-V, Intel® SSE4.1 and SSE4.2, AMD Thermal Monitor (SB-TSI)
Note: The availability of the features may vary between processor SKUs.
¾ Cache: 4MB L2 cache for RX-427BB and RX-425BB, 2MB L2 cache for RX-225FB
¾ Memory: Dual channel non-ECC 1333/1600 MHz DDR3L memory up to 16GB in dual stacked SODIMM sockets
Note: The lower SODIMM slot must be populated.
¾
Chipset: AMD A77E Fusion Controller Hub (codename: Bolton-E4)
¾ Embedded BIOS: AMI EFI with CMOS backup in 8 MB SPI BIOS
2.2. Expansion Busses
¾ PCI Express x 16 Gen3 (can be configured to 2 x8 or 1 x8 and 1 x4)
Note: These lanes are intended for use with a graphics card.
¾ 6 PCI Express x1 (AB): Lanes 0/1/2/3/4/5 (Lanes 0-3 from APU, Lanes 4-5 from FCH)
¾ 1 PCI Express x1 (CD): Lane 6 (from FCH)
¾ LPC bus, SMBus (system) , I
2
C (user)
2.3. SEMA Board Controller
¾ Type: ADLINK Smart Embedded Management Agent (SEMA)
¾ Supports:
• Voltage/Current monitoring
• Power sequence debug support
• AT/ATX mode control
• Logistics and Forensic information
• Flat Panel Control
• General Purpose I2C
• Failsafe BIOS (dual BIOS )
• Watchdog Timer and Fan Control
2.4. Debug Headers
¾ 40-pin multipurpose flat cable connector, used in combination with DB-40 debug module providing BIOS POST code LED, BMC
access, SPI BIOS flashing, power testpoints, debug LEDs
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