diff --git a/tinygrad/runtime/support/system.py b/tinygrad/runtime/support/system.py
index 4971b7f5b0..562a6b842c 100644
--- a/tinygrad/runtime/support/system.py
+++ b/tinygrad/runtime/support/system.py
@@ -1,4 +1,4 @@
-import os, mmap, array, functools, ctypes, select, contextlib, dataclasses, sys, errno, itertools
+import os, mmap, array, functools, ctypes, select, contextlib, dataclasses, sys, itertools
 from typing import cast, ClassVar
 from tinygrad.helpers import round_up, getenv, OSX, temp, ceildiv
 from tinygrad.runtime.autogen import libc, vfio, pci
@@ -173,17 +173,16 @@ class PCIDevice:
     self.lock_fd = System.flock_acquire(f"{devpref.lower()}_{pcibus.lower()}.lock")
     self.pcibus, self.irq_poller = pcibus, None
 
+    try: FileIOInterface(f"/sys/bus/pci/devices/{self.pcibus}/enable", os.O_RDWR)
+    except PermissionError: raise PermissionError(f"Cannot access PCI device {pcibus}: run `extra/amdpci/setup_python_cap.sh` or use sudo")
+
     if FileIOInterface.exists(f"/sys/bus/pci/devices/{self.pcibus}/driver"):
       FileIOInterface(f"/sys/bus/pci/devices/{self.pcibus}/driver/unbind", os.O_WRONLY).write(self.pcibus)
 
     for i in resize_bars or []:
       if FileIOInterface.exists(rpath:=f"/sys/bus/pci/devices/{self.pcibus}/resource{i}_resize"):
         try: FileIOInterface(rpath, os.O_RDWR).write(str(int(FileIOInterface(rpath, os.O_RDONLY).read(), 16).bit_length() - 1))
-        except OSError as e:
-          if e.errno in {errno.EPERM, errno.EACCES}:
-            raise RuntimeError(f"Cannot resize BAR {i}: {e}. Permission error: run `extra/amdpci/setup_python_cap.sh`"
-                                " to allow python accessing device or run with sudo") from e
-          raise RuntimeError(f"Cannot resize BAR {i}: {e}. Ensure the resizable BAR option is enabled on your system.") from e
+        except OSError as e: raise RuntimeError(f"Cannot resize BAR {i}: {e}. Ensure the resizable BAR option is enabled.") from e
 
     if getenv("VFIO", 0) and (vfio_fd:=System.vfio) is not None:
       FileIOInterface(f"/sys/bus/pci/devices/{self.pcibus}/driver_override", os.O_WRONLY).write("vfio-pci")