diff --git a/cpuid_tool/cpuid_tool.c b/cpuid_tool/cpuid_tool.c
index bbfffae..16c51e6 100644
--- a/cpuid_tool/cpuid_tool.c
+++ b/cpuid_tool/cpuid_tool.c
@@ -411,7 +411,8 @@ static void print_info(output_data_switch query, struct cpu_raw_data_t* raw,
 			} else {
 				fprintf(fout, "mperf = %d\n", cpu_msrinfo(handle, INFO_MPERF));
 				fprintf(fout, "aperf = %d\n", cpu_msrinfo(handle, INFO_APERF));
-				fprintf(fout, "cpu:fsb = %.1f\n", cpu_msrinfo(handle, INFO_CUR_MULTIPLIER) / 100.0f);
+				fprintf(fout, "current cpu:fsb = %.1f\n", cpu_msrinfo(handle, INFO_CUR_MULTIPLIER) / 100.0f);
+				fprintf(fout, "max cpu:fsb = %.1f\n", cpu_msrinfo(handle, INFO_MAX_MULTIPLIER) / 100.0f);
 				cpu_msr_driver_close(handle);
 			}
 			break;
diff --git a/libcpuid/rdmsr.c b/libcpuid/rdmsr.c
index 45bc2ce..2ea1790 100644
--- a/libcpuid/rdmsr.c
+++ b/libcpuid/rdmsr.c
@@ -389,9 +389,14 @@ int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
 		{
 			err = cpu_rdmsr(handle, 0x2a, &r);
 			if (err) return CPU_INVALID_VALUE;
-			return (int) ((r >> 22) & 0x3f) * 100;
+			return (int) ((r>>22) & 0x1f) * 100;
 		}
 		case INFO_MAX_MULTIPLIER:
+		{
+			err = cpu_rdmsr(handle, 0x198, &r);
+			if (err) return CPU_INVALID_VALUE;
+			return (int) ((r >> 40) & 0x1f) * 100;
+		}
 		case INFO_TEMPERATURE:
 		case INFO_THROTTLING:
 		default: