diff --git a/files/mnt/p1/boot/grub/grub.cfg b/files/mnt/p1/boot/grub/grub.cfg
index f9a4326d..beb57a67 100644
--- a/files/mnt/p1/boot/grub/grub.cfg
+++ b/files/mnt/p1/boot/grub/grub.cfg
@@ -75,7 +75,7 @@ function set_gfxpayload {
   fi
 }
 
-set RR_CMDLINE="earlyprintk earlycon=uart8250,io,0x3f8,115200n8 console=ttyS0,115200n8 root=/dev/ram rootwait net.ifnames=0 panic=5 pcie_aspm=off"
+set RR_CMDLINE="earlyprintk earlycon=uart8250,io,0x3f8,115200n8 console=ttyS0,115200n8 root=/dev/ram rootwait net.ifnames=0 panic=5 pcie_aspm=off intel_pstate=disable"
 
 search --set=root --label "RR3"
 if [ -s /zImage-dsm -a -s /initrd-dsm ]; then