13x multiplier in Abit kr7a-raid

[Rulo]

I'm using an Abit Kr7a-raid, my cpu is unlocked and works perfectly, I'm running a 1600 xp (10,5 x 133) at 2000 (12,5/13 x 133) the problem is if I try to setup the 13x multiplier it gets the default speed, the rest of the multipliers works fine (8, 8.5, 9, 9.5 etc...) How can I put 13x (2100 xp)?

Thx

 

[Sonny]

Which BIOS are you running? Have you been increasing the VCore evertime you bump up the multi?

 

[Rulo]

I'm using 6n bios (latest one), and isn't a vcore problem, i did vcore mod and has enoght , when I try to put "over 13x" option it gets default settings, I shoud work because I Know people using and xp 2100 on and abit kr7a-raid, more ideas???

Thx