diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 87aa004..f341053 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -67,7 +67,7 @@ jobs:
         working-directory: ${{github.workspace}}/build
         run: |
           mkdir -p $OUTPUT_DIR
-          cmake $GITHUB_WORKSPACE/sw -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DPROJECT_TYPE="NE2K" -DPICO_BOARD=pico_w #-DUSE_LTO=1
+          cmake $GITHUB_WORKSPACE/sw -DCMAKE_BUILD_TYPE=$BUILD_TYPE -DPROJECT_TYPE="NE2K" -DPICO_BOARD=picow_fast #-DUSE_LTO=1
           cmake --build . --config $BUILD_TYPE --parallel $(nproc)
           cp pg-ne2k.uf2 $OUTPUT_DIR/pg-ne2k.uf2
 
diff --git a/sw/CMakeLists.txt b/sw/CMakeLists.txt
index 643e5ba..0d8845c 100644
--- a/sw/CMakeLists.txt
+++ b/sw/CMakeLists.txt
@@ -334,7 +334,6 @@ function(build_ne2k TARGET_NAME MULTIFW)
     target_link_libraries(
         ${TARGET_NAME}
         ne2000        
-        pico_cyw43_arch_none
     )
 endfunction()
 
diff --git a/sw/ne2000play.cpp b/sw/ne2000play.cpp
index b5a2863..44576be 100644
--- a/sw/ne2000play.cpp
+++ b/sw/ne2000play.cpp
@@ -33,10 +33,8 @@ extern uint LED_PIN;
 void play_ne2000() {
     //flash_safe_execute_core_init();
     puts("starting core 1 ne2000");
-    set_sys_clock_khz(240000, true);//temporary hack because of board definition flash divider
     PG_EnableWifi();
     PG_Wifi_Connect(settings.WiFi.ssid, settings.WiFi.password);
-    set_sys_clock_khz(366000, true);
 
     static bool flag = false;
     while(1) {
diff --git a/sw/picow-fast.h b/sw/picow-fast.h
deleted file mode 100644
index caab900..0000000
--- a/sw/picow-fast.h
+++ /dev/null
@@ -1,12 +0,0 @@
-// Board config file for PicoGUS 2.0, also compatible with the Pi Pico 
-#ifndef _BOARDS_PICOW_FAST_H
-#define _BOARDS_PICOW_FAST_H
-
-// Allow extra time for xosc to start.
-#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
-
-// Slower flash to assist restarts when flashing on the fly
-#define PICO_FLASH_SPI_CLKDIV 6
-
-#include "boards/pico_w.h"
-#endif
\ No newline at end of file