Huge 25mm / 1 inch heat pipe (HP PA-8700 processor)
Biggest heat pipe I have ever seen, used to cool a HP PA-8700 CPU from an old HP RP 5430 or 5470 server, measuring a massive 1 inch or 25mm in diameter. https://en.wikipedia.org/wiki/Heat_pipe I also have the memory card with a total of 6GB PC133 Registered ECC SDRAM. The PA-8700 CPU was a PA-RISC (Precision Architecture - Reduced Instruction Set Computer) server CPU developed by HP. This one was produced in the 13th week of 2003 on a 180nm process. It ran at 625 to 750Mhz. http://www.openpa.net/pa-risc_processor_pa-8700.html https://en.wikipedia.org/wiki/PA-800 #PA-8700 The rest of the server was just too big to keep. I included photo's of the motherboard and the chassis on the end of the video.
Biggest heat pipe I have ever seen, used to cool a HP PA-8700 CPU from an old HP RP 5430 or 5470 server, measuring a massive 1 inch or 25mm in diameter. https://en.wikipedia.org/wiki/Heat_pipe I also have the memory card with a total of 6GB PC133 Registered ECC SDRAM. The PA-8700 CPU was a PA-RISC (Precision Architecture - Reduced Instruction Set Computer) server CPU developed by HP. This one was produced in the 13th week of 2003 on a 180nm process. It ran at 625 to 750Mhz. http://www.openpa.net/pa-risc_processor_pa-8700.html https://en.wikipedia.org/wiki/PA-800 #PA-8700 The rest of the server was just too big to keep. I included photo's of the motherboard and the chassis on the end of the video.