Cisco AS5300 capacity problem

Hello.

I want to confirm if someone have used the Cisco AS5300 with compression of 4 T1’s to one, at full capacity, and have had some kind of problem with this.

I have 7 devices like this, with 4 T1’s each, but when we put full traffic there, the CPU and memory crash, and we lost all the traffic.

Somebody have any clue?

Thanks!