只有通道B内存工作，通道A给出POST错误“没有安装内存”

我使用的是英特尔服务器主板S1200V3RPS。
这个板有4个内存插槽即。
通道A具有A1和A2槽，通道B具有B1和B2槽。
当我在B1和B2插槽或仅B1插槽中插入ram棒时，我的系统工作正常。
但是如果我把ram棒放在A1或A2插槽中​​，那么POST错误指示灯会发出代码1110 1000 - 没有安装可用内存。
无论何时将记忆棒放在A1或A2槽中（无论B1和B2是否填充或为空），都没有可用的内存错误。
我已经重置BIOS，插上所有电源连接器并再次连接它们，重新安装cpu插座中的CPU，断开连接的硬盘和dvdrom但问题仍然是相同的。
我使用这个板子已经有两年半了，突然昨天系统拒绝启动。
请让我知道在将其转交给英特尔经销商进行保修之前我应该​​尝试的其他步骤。



以下为原文

I am using Intel serverboard S1200V3RPS. This board has 4 memory slots viz. Channel A having A1 and A2 slots and Channel B having B1 and B2 slots. My system is working fine when I insert ram sticks in B1&B2 slots or only B1 slot. But if I put ram stick in A1 or A2 slots, then POST error lights give out code 1110 1000 - No usable memory installed. Anytime a memory stick is placed in A1 or A2 slots (irrespective of whether B1 and B2 are populated or empty), I get no usable memory error.

I have reset BIOS, plugged out all power connectors and connected them again, reseated CPU in cpu socket,disconnected harddrives and dvdrom but problem is still the same. I am using this board for past 2 and a half years and suddenly yesterday system refused to boot up.

Please let me know what other steps I should try before turning it over to intel dealer for warranty.