diff --git a/firmware/boards/f1_dave/mcuconf.h b/firmware/boards/f1_dave/mcuconf.h
index f2c6cc5..c4e8557 100644
--- a/firmware/boards/f1_dave/mcuconf.h
+++ b/firmware/boards/f1_dave/mcuconf.h
@@ -44,11 +44,11 @@
 #define STM32_SW                            STM32_SW_PLL
 #define STM32_PLLSRC                        STM32_PLLSRC_HSI
 #define STM32_PLLXTPRE                      STM32_PLLXTPRE_DIV1
-#define STM32_PLLMUL_VALUE                  16
+#define STM32_PLLMUL_VALUE                  12
 #define STM32_HPRE                          STM32_HPRE_DIV1
 #define STM32_PPRE1                         STM32_PPRE1_DIV2
 #define STM32_PPRE2                         STM32_PPRE2_DIV1
-#define STM32_ADCPRE                        STM32_ADCPRE_DIV6
+#define STM32_ADCPRE                        STM32_ADCPRE_DIV4
 #define STM32_USB_CLOCK_REQUIRED            TRUE
 #define STM32_USBPRE                        STM32_USBPRE_DIV1
 #define STM32_MCOSEL                        STM32_MCOSEL_NOCLOCK