HP Vectra VT 6/xxx HP Vectra VT 6/xxx, Familiarization guide - Page 10

1 Product Overview and Features Product Features Product Features Local Bus Devices • Intel Pentium Pro (P6) microprocessor • optional second Pentium Pro processor (HP Vectra XU 6/xxx PC only) • main memory controller and its memory modules • error correcting code (ECC). Microprocessor The Pentium Pro is a super-pipelined, dynamic branch-prediction, asynchronous super-scalar Intel microprocessor. Within the single integrated circuit package Intel provide a Level-Two (L2) cache memory chip and the microprocessor. The former contains 256 KB of synchronous cache memory; the latter includes two Level-One (L1) cache memories (an 8 KB instructioncode cache memory, and an 8 KB data cache memory). Software written for previous HP Vectra PCs will run on the Pentium Pro. However, only 32-bit programs execute faster. The Pentium Pro is not pin compatible with the Pentium. Dual Processor The HP Vectra XU 6/xxx PC has a socket for installing a second Pentium Pro processor. However, to do so is only an advantage when running an operating system that supports multiprocessing ("MPS-ready"), such as SCO-Unix, NextStep, Solaris, OS/2 SMP and Windows NT. Of these, the Windows NT operating system makes best use of the Pentium Pro's 32-bit architecture (though other operating systems will also show some benefit if 32-bit application programs are run). SCO Unix Next Step Sunsoft Solaris OS/2 Multi-threaded Yes Yes Yes Yes MPS-ready Yes Yes No No 32-bit operating system Yes Yes Yes Yes 32-bit applications available Yes Yes Yes Yes 1. 32-bit operation at the outermost levels, but only 16-bit working internally 2. With the 32S library Windows NT 3.5 (or greater) Windows 95 Windows 3.x DOS Yes Yes No No Yes No No No Yes Partial1 No No Yes Yes Partial2 No 6