CPUpages.com 75PR – DX4ODPR 75

In fact it is A80486DX4-75 for upgrade A80486SX 16-25 and A80486DX 25. CPU has 486DX pinout (168pins). Original CPU must be replaced by OverDrive CPU.

Manufacturer: Intel
Type: Microprocessor
Introduced: Oct. 1994
Name (codename): 486DX4 OverDrive Processor Replacement (P24CT)
Code (Copyright): DX4ODPR75 (Intel ’89 ’93)
Specification number: SZ958
Core speed: 48MHz(16MHz BUS), 60MHz(20MHz BUS) or 75MHz(25MHz BUS)
BUS: 16MHz – 25MHz, 32-bit
Transistors (Die size): 1 600 000 (87mm square)
Technology: 0.6-micron
L1/L2 cache: 16kB / to 512kB (external, BUS speed)
Can address: 4 GB of physical and 64 TB of virtual memory
FPU: Integrated
Whetstone FPU: ?MFLOPS
Drystone ALU: ?MIPS
V core (typical/max.): 3.3V – 6.5V (I/O 5.0V)
Power dissipation (typical/max.): 4.175W – 6.0W (at 75MHz)
Operating temperature (min./max.): 0 – 95°C
Package (Socket): Ceramic PGA-168pin (Socket 1,2,3)
Dimensions: 44.5 x 44.5 x 22mm

Origin: John Munro (Canada)