Windows 8 Multi-Boot timer error

[allgames71]

I've add Win8PE to my Win8 OS with boottime = 30 sec and boot like :

Windows 8
Win8PE

The Win8PE boot normal and I can see X:\Windows\System32 . But I found 2 errors :

1. When boot , if it show up bootmenu "Windows 8" and "Win8PE , the 30 sec boottime didn't show up and no countdown time even I change the time to 10 sec

2. Frequently the computer boot directly into Windows 8 with showing the bootmenu

I can change the boottime in msconfig. Strange is msconfig show the boottime is 30 sec while EasyBCD shows 6 sec. I change time to 15 sec in EasyBCD , but the above boot symtom continue ?

Please help