diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2956b867fb..d18fcac45f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,7 @@ Please mark all change in change log and use the ticket from JIRA.
 - \#533 - NSG build failed with MetricType Inner Product
 - \#543 - client raise exception in shards when search results is empty
 - \#545 - Avoid dead circle of build index thread when error occurs
+- \#552 - Server down during building index_type: IVF_PQ using GPU-edition
 - \#561 - Milvus server should report exception/error message or terminate on mysql metadata backend error
 
 ## Feature
diff --git a/core/src/index/unittest/test_nsg/test_nsg.cpp b/core/src/index/unittest/test_nsg/test_nsg.cpp
index 5de826fabe..5166b21956 100644
--- a/core/src/index/unittest/test_nsg/test_nsg.cpp
+++ b/core/src/index/unittest/test_nsg/test_nsg.cpp
@@ -42,7 +42,8 @@ class NSGInterfaceTest : public DataGen, public ::testing::Test {
     SetUp() override {
         // Init_with_default();
 #ifdef MILVUS_GPU_VERSION
-        knowhere::FaissGpuResourceMgr::GetInstance().InitDevice(DEVICEID, 1024 * 1024 * 200, 1024 * 1024 * 600, 2);
+        int64_t MB = 1024 * 1024;
+        knowhere::FaissGpuResourceMgr::GetInstance().InitDevice(DEVICEID, MB * 200, MB * 600, 1);
 #endif
         Generate(256, 1000000 / 100, 1);
         index_ = std::make_shared<knowhere::NSG>();
diff --git a/core/src/wrapper/ConfAdapter.cpp b/core/src/wrapper/ConfAdapter.cpp
index d49747d8f4..7644e77ef5 100644
--- a/core/src/wrapper/ConfAdapter.cpp
+++ b/core/src/wrapper/ConfAdapter.cpp
@@ -134,7 +134,7 @@ IVFPQConfAdapter::Match(const TempMetaConf& metaconf) {
 
     /*
      * Faiss 1.6
-     * Only 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32 dims per sub-quantizer are currently supporte with
+     * Only 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32 dims per sub-quantizer are currently supported with
      * no precomputed codes. Precomputed codes supports any number of dimensions, but will involve memory overheads.
      */
     static std::vector<int64_t> support_dim_per_subquantizer{32, 28, 24, 20, 16, 12, 10, 8, 6, 4, 3, 2, 1};
@@ -152,7 +152,12 @@ IVFPQConfAdapter::Match(const TempMetaConf& metaconf) {
 
     if (resset.empty()) {
         // todo(linxj): throw exception here.
-        return nullptr;
+        WRAPPER_LOG_ERROR << "The dims of PQ is wrong : only 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32 dims per sub-"
+                             "quantizer are currently supported with no precomputed codes.";
+        throw WrapperException(
+            "The dims of PQ is wrong : only 1, 2, 3, 4, 6, 8, 10, 12, 16, 20, 24, 28, 32 dims "
+            "per sub-quantizer are currently supported with no precomputed codes.");
+        // return nullptr;
     }
     static int64_t compression_level = 1;  // 1:low, 2:high
     if (compression_level == 1) {
diff --git a/core/unittest/wrapper/test_wrapper.cpp b/core/unittest/wrapper/test_wrapper.cpp
index 37e5c31095..2653852494 100644
--- a/core/unittest/wrapper/test_wrapper.cpp
+++ b/core/unittest/wrapper/test_wrapper.cpp
@@ -182,6 +182,7 @@ TEST_P(KnowhereWrapperTest, SERIALIZE_TEST) {
 TEST(whatever, test_config) {
     milvus::engine::TempMetaConf conf;
     conf.nprobe = 16;
+    conf.dim = 128;
     auto nsg_conf = std::make_shared<milvus::engine::NSGConfAdapter>();
     nsg_conf->Match(conf);
     nsg_conf->MatchSearch(conf, milvus::engine::IndexType::NSG_MIX);