Trigem Delhi-3 Processor Support

 

Delhi-3 motherboard provides the 321pin ZIF socket-7 that is backward compatible with ZIF socket-5 processors. The Pentium processor have the variable CoreVCC voltage according to the model and vendor, so the voltage regulator should be designed in the motherboard. SC1152 switching regulator offers the higher efficiency and programmability of output voltage from 2.0V to 3.5V in 100mV increments with the VID pins. Voltage selection SC1152 DC-DC converter operates at a fixed frequency of 100KHz, providing an optimum compromise between size, efficiency and cost in the intended application areas. The output voltage can be adjusted in 100mV increment or decrement according to the VID pin status. Output voltage = minimum 2.0V, 2.1V, 2.2V, 3.2V, 3.3V, 3.4V, maximum 3.5V Especially the old Pentium processors have to operate in the single power source, so must be carefully adjusted or set within the recommended specification. Supported Pentium processor group · Intel: P54C and P55C with MMX · AMD: K5, K6, and K6-2 with 3D Technology · IBM/Cyrix: 6x86, 6x86MX, and M-II