diff --git a/Source/hoc-clk/sysmodule/src/board/board_freq.cpp b/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
index c096b8ee..a34a83cb 100644
--- a/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
+++ b/Source/hoc-clk/sysmodule/src/board/board_freq.cpp
@@ -42,7 +42,7 @@
 #include "../file/config.hpp"
 #include "../soc/gm20b.hpp"
 namespace board {
-
+    #define MIDDLE_FREQ_TABLE_START_POINT 1228800000
     PcvModule GetPcvModule(HocClkModule hocclkModule) {
         switch (hocclkModule) {
             case HocClkModule_CPU:
@@ -87,7 +87,7 @@ namespace board {
             return;
         }
 
-        bool useGm20b = (module == HocClkModule_GPU) && (GetSocType() == HocClkSocType_Mariko) && (hz % 38400000 == 0) && (hz % 76800000 != 0);
+        bool useGm20b = (module == HocClkModule_GPU) && (GetSocType() == HocClkSocType_Mariko) && (hz % 38400000 == 0) && (hz % 76800000 != 0) && hz < MIDDLE_FREQ_TABLE_START_POINT;
 
         u32 pcvHz = useGm20b ? ((hz + 76800000 - 1) / 76800000) * 76800000 : hz;