关于 Miner v4.1 DAG挡

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小弟显卡是 MSI R9 380 2G
使用 Miner v4.1 采矿
开启Miner v4.1 时会显示以下资讯
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OpenCL error - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
OpenCL error - cannot allocate big buffer for DAG. Check readme.txt for possible solutions.
Setting DAG epoch #82 for GPU #0
GPU 0, OpenCL error -38 - cannot write buffer for DAG
Setting DAG epoch #82 for GPU #1
GPU 1, OpenCL error -38 - cannot write buffer for DAG

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小弟BAT挡内也有加入
setx GPU_FORCE_64BIT_PTR 0
setx GPU_MAX_HEAP_SIZE 100
setx GPU_USE_SYNC_OBJECTS 1
SET GPU_SINGLE_ALLOC_PERCENT = 100

可是还是一样没有效
不知各位前辈有没有解决的办法