diff --git a/systems/x86_64-linux/halo/hardware-configuration.nix b/systems/x86_64-linux/halo/hardware-configuration.nix
index 175e8eb..500f07b 100644
--- a/systems/x86_64-linux/halo/hardware-configuration.nix
+++ b/systems/x86_64-linux/halo/hardware-configuration.nix
@@ -31,9 +31,9 @@
     "quiet"
     "splash"
     "video=efifb:nobgrt"
-    "amdgpu.gttsize=126976"
+    "amdgpu.gttsize=122880"
     "iommu=pt"
-    "ttm.pages_limit=32505856"
+    "ttm.pages_limit=31457280"
     "amdgpu.cwsr_enable=0"
   ];