BIOS version is 54
Sure I know 'unplug code rule'
I guess, it's a small 'displaying' bug .
Reseller confirmed another S5520HC board has same problem.
But I have no way directly contact local Korea Intel A/S center. ARS saying about ths forum.
I hope, Intel confirmation this bug, and make hotfix ASAP
I've done some tests today and below are my findings:
1. You're right that VT is now enabled by default in BIOS. I guess it's changed in recent BIOS updates, and thus different from what's documented in TPS.
2. CPU-Z may not be the right tool to tell you whether your system has VT enabled or not - it only tells you the CPU capability, and it displays VT-x no matter VT is enabled in BIOS or not. (When Hyper-V role is not added in Windows)
3. Once Hyper-V role is added, and VT is enabled in BIOS, CPU-Z doesn't show VT-x. The reason is explained here, and Virtual Machines in Hyper-V can run well, indicating VT is actually working.
4. With Hyper-V role added, and VT disabled in BIOS, CPU-Z shows VT-x, because Hypervisor is not running, and if you attempt to run any Virtual Machines in Hyper-V you'll get an error saying VT needs to be enabled in BIOS.
So it's not a BIOS bug.
Thank you,I got answer.
But I want to know one more.
Why I can't use AES-NI? (when Hyper-V role is added)
Is Microsoft's problem?
I tested this sample : http://software.intel.com/en-us/articles/download-the-intel-aesni-sample-library/
This code is not work.
If I remove "check_for_aes_instructions()" codes, works fine. (attached a image)
How to check AES-NI over hypervisor?
aes_example.jpg 56.9 K
I can't get E5620 on S5520HC with aes flag whether VT is enabled or not.
I have latest BIOS and Fedora system installed.
Vendor: Intel Corp.
Release Date: 09/21/2012
processor : 15
vendor_id : GenuineIntel
cpu family : 6
model : 44
model name : Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
stepping : 2
microcode : 0x15
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 dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid dca sse4_1 sse4_2 popcnt lahf_lm ida arat epb dtherm tpr_shadow vnmi flexpriority ept vpid