• Power and cooling:
◦ MC990 X server chassis power supplies are redundant and can be hot-swapped.
◦ MC990 X server chassis have overcurrent protection at the motherboard and power supply level.
◦ MC990 X server chassis fans are redundant and can be hot-swapped.
◦ MC990 X server chassis fans run at multiple speeds. Speed increases automatically when
temperature increases or when a single fan fails.
• System monitoring:
◦ System controllers monitor the internal power and temperature of the MC990 X server chassis
components, and can automatically shut down an enclosure to prevent overheating.
◦ All main memory has Intel Single Device Data Correction to detect and correct 8 contiguous bits
failing in a memory device. Additionally, the main memory can detect and correct any two-bit errors
coming from two memory devices (8 bits or more apart).
◦ All high speed links including Intel Quick Path Interconnect (QPI), Intel Scalable Memory
Interconnect (SMI), and PCIe have cyclic redundancy check (CRC) check and retry.
◦ The NUMAlink interconnect network is protected by CRC.
◦ Each MC990 X server chassis installed has status LEDs that indicate the server operational
condition; LEDs are viewable at the front of the unit.
• Power-on and boot:
◦ Automatic testing occurs after you power on the system. These power-on self-tests or POSTs are
also referred to as power-on diagnostics or PODs.
◦ Processors and memory are automatically disabled when a self-test failure occurs.
◦ Boot times are minimized.
• Further RAS features:
◦ Systems can report status inventory information, provide hardware logs of out-of-range conditions,
or perform recovery procedures through remote commands.
◦ All system faults are logged in files.
◦ Memory can be scrubbed using error checking code (ECC) when a single-bit error occurs.
12 HPE Integrity MC990 X Server overview
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