A1200P problem on Elastix 1.6 64 bit

Dear Sir,
We are facing a problem with the A1200P we had a chasis with 14 PCI slots installed on them 4 A1200P each with 12 FXO ports and one DE410P, the problem is that we get many buffer re-sync messages appears but its not hardware compatibility issue as when we install only one A1200P along with the DE410P it works fine kindly help to solve this issue

Please tell the details of the server, like CPU...

Hi,
The server details is as follows:
PCI Extension board from IEI with 14 PCI PCIMG1.0 with an SBC wsb-Q35 which is based on intel Q35 Express chipset processor is core2Quad 2.5GHZ and 2GB Ram

Please refer this link:
http://bbs.openvox.cn/viewthread.php?tid=405&extra=page%3D6

Hi Dennis,
By default the two ethernet interfaces latency timer is 0 and all the A1200P latency timer is 64 is ther another solution

have i to change the latency timer for each card