HP 641845-001 is a 4U interposer module board designed for the ProLiant SL390s GPU-accelerated server chassis. This refurbished component supports up to eight GPU connections with integrated PCIe switching and power distribution logic. Part Number 641845-001 provides the electrical and mechanical interface between GPU modules and the host system backplane, enabling high-bandwidth GPU-to-CPU connectivity typical of HPC, machine learning, and scientific computing workloads. The board handles GPU power sequencing, thermal monitoring, and fault detection across all eight GPU slots. Compatible with SL390s configurations using NVIDIA Tesla or other PCIe-based accelerators. Supports both air-cooled and liquid-cooled GPU thermal solutions within the SL390s form factor. Typical applications include GPU-accelerated parallel processing, deep learning model training, financial modeling, and large-scale data analytics. This board is essential for multi-GPU server deployments requiring balanced power distribution and reliable PCIe switching across dense accelerator arrays.
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