11. To support the new R10000s, a new CPU board , the " IP25 " was introduced. 12. Several CPU boards also have integrated SCSI controllers or even the option to add a graphics card. 13. The 4P's CPU board lacked the Model III ROM chips containing the Model III Microsoft BASIC interpreter. 14. A single CPU board can carry up to 4 processors, 4GB of RAM and 4 SBUS IO boards. 15. The Multibus CPU board supported the Sun-1 parallel keyboard and mouse as well as two serial ports. 16. The new CPU board , like previous IP19 CPU board, support four processors each and their associated secondary caches. 17. The new CPU board, like previous IP19 CPU board , support four processors each and their associated secondary caches. 18. In 2006, a third party designed and produced a Chroma CPU board replacement kit known as the CC +. 19. CPU boards provide active communication on both buses, and are capable of communicating with both ISA and PCI peripheral cards.20. For example, a CPU board may have a Type 1 bottom PCIe connector and a Type 2 top PCIe connector.
