American Megatrends Apollo IV User Manual page 23

Step 3 Configure CPU,
Set AMD CPU Voltage Install AMD K5 and K6 CPUs that adhere to either the standard or
VRE voltage specifications. VR is a 10-pin berg that sets CPU voltage. VR1
is near the top of the CPU socket.
AMD K5 CPU Markings The markings on the top of the AMD K5 CPUs are:
AMD-K5
AMD-K5-PRxxxABQ
where B is the voltage range identifier.
AMD K6 CPU Markings The markings on the top of the AMD K6 CPUs are:
AMD-K6
AMD-K6-xxxA AMD K5 CPU Markings The markings on the top of the
AMD K5 CPUs are:
AMD-K5
AMD-K5_PRxxxAVQ
where V is the voltage range identifier.
B and V
Chapter 1 Hardware Installation
Continued
Description
value
N Core 3.1 – 3.3V
I/O 3.135 – 3.6V
L Core 2.755 – 3.045V
I/O 3.135 – 3.6V
Cont'd
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