Magma ExpressBox EB3600-P, Руководство пользователя

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EB3600-P | Chapter 2 Hardware Installation 28
PCIe card Memory Requirements
Always check the general system and hardware requirements as well as optimal CPU and GPU settings
when using High Power GPUs. For example, you are using five XYZ brand Double wide GPUs and each GPU
requires 16GB of PCI Memory Address space. In order for these 5 XYZ GPUs to operate properly, a total of
80G of host system memory is needed during system boot. The system BIOS, during POST, will typically
check for equivalent host system memory to be able to support PCI address space. The host computer
should match or exceed the memory requirements of the total GPU PCI address space to achieve better
performance and avoid problems that may cause the entire system to malfunction.
Random crashes and
other unexpected errors can occur if GPU memory requirements are not met or the system may not
boot at all if the BIOS checks for and sees a mismatch on PCI address space and host system memory
capacity. Check with GPU manufacturers for details on memory and systems requirements.
NOTE
Increasing the size of the memory may not be enough for some systems, adjusting the
settings in BIOS of the host system accordingly might be required (i.e. enable above 4G
memory as well as increase MMIO space accordingly).
PCIe card Power Requirements
Power consumption is crucial for all CPUs and GPUs and other High-End Power Hungry PCIe cards. GPUs
consume a great deal of power. As the processing power of graphic cards has increased, so has their
demand for electrical power. Due to the limitations of the card slot PCI-Express connector that only
supplies 75 Watts of power, present GPU cards with power consumption of over 75 Watts now includes a
combination of six-pin (75 W) and or eight-pin (150 W) connectors. If these are not available, you can use
the internal AUX power connectors in the expansion unit (see picture below).
There are 18 (6+2 pin) PCIe AUX power connectors available in the expansion unit for providing extra
power to PCIe cards / GPUs.