Headers And Connectors - Supermicro A+ Server AS-1115S-FWTRT User Manual

4.2 Headers and Connectors

Power SMB Header (JPI2C1)
The Power System Management Bus (I2C) header monitors power supply, fan, and system
temperatures. See the table below for pin definitions.
Onboard Fan Headers (FAN1-FAN6)
There are six fan headers on the motherboard. These are 4-pin fan headers; pins 1-3 are
backward compatible with traditional 3-pin fans. The onboard fan speeds are controlled
by Thermal Management (via Hardware Monitoring) in the BMC. When using Thermal
Management setting, please use all 4-pin fans.
NVMe Ports (NVMe 0-5)
The H13SVW-NT has three dedicated NVMe ports (two ports on a MCIO connector). These
ports provide high-speed, low-latency PCIe 5.0 x4 connections directly from the CPU to
NVMe Solid State (SSD) drives. This greatly increases SSD data-throughput performance
and significantly reduces PCIe latency by simplifying driver/software requirements resulting
from direct PCIe interface from the CPU to the NVMe SSD drives.
SATA/NVMe Hybrid Ports (SATA 0-7/NVMe 6-7; SATA 8-15/NVMe 8-9)
Each SATA/NVMe hybrid port can support up to eight SATA 3.0 ports or two NVMe ports
(PCIe x4), for a total of 16 SATA ports or four NVMe ports.
Chapter 4: Motherboard Connections
Power SMB Header
Pin Definitions
Pin# Definition
1 Clock
2 Data
3 PWR Fail
4 Ground
5 +3.3 V
Fan Header
Pin Definitions
Pin# Definition
1 Ground (Black)
2 +12 V (Red)
3 Tachometer (Yellow)
4 PWM Control (Blue)
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