Pentium® Processor - Identify



Pentium® Processor - Identify

The Pentium® processors have different operational voltage. In order to using the CPU Voltage correctly, the following is the marking for identify the Pentium® CPU-type.

Operating temperature should not exeed 70°C

CPU Description (bottom view)

    +------------\
    | XXXXXXXXXX |<- Internal production No.
    | XXXXXXXXXX |<- Produced at (MALAY)
    | A80502/MMM |<- Processor-type / MMM = speed
    |            |
    | SXxxx/SMU  |<- Production No. (SX or SK)
    |    i75|||  |<- i75 = 75MHz / iPP = 90 to 166 MHz
    +-----°-|||--+
          | ||+--- U = Dual Processing Support (S or U)
   Embossed ||         S = Support DP/MP/UP
   Lid      ||         U = only for UP, no support for DP/MP
            ||
            ||             DP = Dual processing (2 CPUs)
            ||             MP = Multi processing (2 or more CPUs)
            ||                  (CPU integrated 2nd level Cache)
            ||             UP = Uni processing (only 1 CPU)
            ||
            |+---- M = Timing Specifications (S or M)
            |          S = Standard EDS timings
            |          M = Min. Valid Delay Spec.
            |
            +----- S = Voltage Specification (S or V)
                       S = Standard Voltage 3.135 - 3.6 Vdc (3.4 Vdc)
                       V = VRE 3.4 - 3.6 Vdc (3.5 Vdc)
    VRM Jumper setting for 3.5 Vdc (w/o VRM-module)
          +-------------------------------+
          |                               |
          | ° ° ° °-° °-° ° ° ° ° ° ° ° ° |  (4x Jumper)
          | ° ° ° °-° °-° ° ° ° ° ° ° ° ° |
          \-------------------------------+
        Pin-1
    VRM Voltage Regulator Module FRU P/N 38H6754
                   Jumper-block  FRU P/N 38H6755


See > VRM pin-layout
See CPU-Sockets > Processor Socket-Types


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