jwmesa412 / i7z

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Ivy Bridge-E 4960X not showing correct frequency #87

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago
Hello,

I have an Ivy Bridge-E 4960X and I'm not getting the frequency to output 
correctly (or the C states).  If I put in a drive with Windows 8.1 (or 7, or 
whatever) and run latest CPU-Z, etc, I'm seeing 4.7GHz with correct multis, 
voltages, etc.

However with the latest version of i7z, I'm seeing the Max Turbo Multi is 47x, 
but max freq is 100 x 37.  

i7z seems to be reporting incorrectly.  I'm also using the latest microcode 
patch from Intel.

REPRODUCE THE PROBLEM

Use a system with Ivy Bridge-E processor (specifically in this case a 4960X).  
Motherboard is Rampage IV Extreme Black Edition.

Build from source (svn-r93-(27-may-2013))

Mobo, CPU, and /proc/cpuinfo:

Motherboard:  Rampage IV Extreme Black Edition
CPU:  i7 4960X 

/proc/cpuinfo:

cat /proc/cpuinfo
processor   : 0
vendor_id   : GenuineIntel
cpu family  : 6
model       : 62
model name  : Intel(R) Core(TM) i7-4960X CPU @ 3.60GHz
stepping    : 4
microcode   : 0x428
cpu MHz     : 3600.107
cache size  : 15360 KB
physical id : 0
siblings    : 6
core id     : 0
cpu cores   : 6
apicid      : 0
initial apicid  : 0
fpu     : yes
fpu_exception   : yes
cpuid level : 13
wp      : yes
flags       : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat 
pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp 
lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc 
aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm 
pcid dca sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx f16c 
rdrand lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority 
ept vpid fsgsbase smep erms
bogomips    : 7200.21
clflush size    : 64
cache_alignment : 64
address sizes   : 46 bits physical, 48 bits virtual
power management:

Then repeats for the rest of the cores.  HT is disabled.

The application does not crash.  It reports incorrectly.

rdmsr 0x19c - 88380000
rdmsr 0x1a2 - 5a0a00
rdmsr 0x38d - 333
rdmsr 778 - 1a16d3f3131
rdmsr 779 - 1a3e4e6b204
rdmsr 1020 - 0
rdmsr 1021 - 0

Original issue reported on code.google.com by ve...@begolli.com on 15 Jul 2014 at 7:17