diff --git a/src/main/java/li/cil/oc2/api/bus/device/vm/VMDeviceLoadResult.java b/src/main/java/li/cil/oc2/api/bus/device/vm/VMDeviceLoadResult.java
index c83502bf..5add0ca4 100644
--- a/src/main/java/li/cil/oc2/api/bus/device/vm/VMDeviceLoadResult.java
+++ b/src/main/java/li/cil/oc2/api/bus/device/vm/VMDeviceLoadResult.java
@@ -1,5 +1,9 @@
 package li.cil.oc2.api.bus.device.vm;
 
+import net.minecraft.util.text.ITextComponent;
+
+import javax.annotation.Nullable;
+
 public final class VMDeviceLoadResult {
     public static VMDeviceLoadResult success() {
         return new VMDeviceLoadResult(true);
@@ -10,6 +14,7 @@ public final class VMDeviceLoadResult {
     }
 
     private final boolean wasSuccessful;
+    @Nullable private ITextComponent message;
 
     private VMDeviceLoadResult(final boolean wasSuccessful) {
         this.wasSuccessful = wasSuccessful;
@@ -18,4 +23,14 @@ public final class VMDeviceLoadResult {
     public boolean wasSuccessful() {
         return wasSuccessful;
     }
+
+    public VMDeviceLoadResult withErrorMessage(final ITextComponent value) {
+        message = value;
+        return this;
+    }
+
+    @Nullable
+    public ITextComponent getErrorMessage() {
+        return message;
+    }
 }
diff --git a/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java b/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
index a7b8f012..7d5a2c52 100644
--- a/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
+++ b/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
@@ -9,6 +9,7 @@ import li.cil.oc2.api.bus.device.Device;
 import li.cil.oc2.api.bus.device.vm.VMContext;
 import li.cil.oc2.api.bus.device.vm.VMDevice;
 import li.cil.oc2.api.bus.device.vm.VMDeviceLifecycleEventType;
+import li.cil.oc2.api.bus.device.vm.VMDeviceLoadResult;
 import li.cil.oc2.common.block.ComputerBlock;
 import li.cil.oc2.common.bus.AbstractDeviceBusController;
 import li.cil.oc2.common.bus.TileEntityDeviceBusController;
@@ -251,7 +252,13 @@ public final class ComputerTileEntity extends AbstractTileEntity implements ITic
                     break;
                 }
 
-                if (!virtualMachine.vmAdapter.load()) {
+                final VMDeviceLoadResult loadResult = virtualMachine.vmAdapter.load();
+                if (!loadResult.wasSuccessful()) {
+                    if (loadResult.getErrorMessage() != null) {
+                        setBootError(loadResult.getErrorMessage());
+                    } else {
+                        setBootError(new TranslationTextComponent(Constants.COMPUTER_BOOT_ERROR_UNKNOWN));
+                    }
                     loadDevicesDelay = DEVICE_LOAD_RETRY_INTERVAL;
                     break;
                 }
@@ -441,6 +448,10 @@ public final class ComputerTileEntity extends AbstractTileEntity implements ITic
     }
 
     private void setBootError(@Nullable final ITextComponent value) {
+        if (Objects.equals(value, bootError)) {
+            return;
+        }
+
         bootError = value;
         final ComputerBootErrorMessage message = new ComputerBootErrorMessage(this);
         Network.sendToClientsTrackingChunk(message, chunk);
diff --git a/src/main/java/li/cil/oc2/common/vm/VirtualMachineDeviceBusAdapter.java b/src/main/java/li/cil/oc2/common/vm/VirtualMachineDeviceBusAdapter.java
index 19351cfd..86a846d2 100644
--- a/src/main/java/li/cil/oc2/common/vm/VirtualMachineDeviceBusAdapter.java
+++ b/src/main/java/li/cil/oc2/common/vm/VirtualMachineDeviceBusAdapter.java
@@ -45,8 +45,7 @@ public final class VirtualMachineDeviceBusAdapter {
         defaultAddressProvider = provider;
     }
 
-    public boolean load() {
-        boolean anyFailed = false;
+    public VMDeviceLoadResult load() {
         for (int i = 0; i < incompleteLoads.size(); i++) {
             final VMDevice device = incompleteLoads.get(i);
 
@@ -60,24 +59,19 @@ public final class VirtualMachineDeviceBusAdapter {
             context.freeze();
 
             if (!result.wasSuccessful()) {
-                anyFailed = true;
                 for (; i >= 0; i--) {
                     deviceContexts.get(incompleteLoads.get(i)).invalidate();
                 }
-                break;
+                return result;
             }
         }
 
-        if (anyFailed) {
-            return false;
-        }
-
         incompleteLoads.clear();
 
         reservedInterrupts.clear();
         reservedInterrupts.or(claimedInterrupts);
 
-        return true;
+        return VMDeviceLoadResult.success();
     }
 
     public void unload() {
diff --git a/src/test/java/li/cil/oc2/common/bus/VMDeviceTests.java b/src/test/java/li/cil/oc2/common/bus/VMDeviceTests.java
index 512c6261..27d4eaaf 100644
--- a/src/test/java/li/cil/oc2/common/bus/VMDeviceTests.java
+++ b/src/test/java/li/cil/oc2/common/bus/VMDeviceTests.java
@@ -59,11 +59,11 @@ public final class VMDeviceTests {
         when(device2.load(any())).thenReturn(VMDeviceLoadResult.success());
 
         adapter.addDevices(Collections.singleton(device1));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
         verify(device1).load(any());
 
         adapter.addDevices(Collections.singleton(device2));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         verifyNoMoreInteractions(device1);
         verify(device2).load(any());
@@ -75,7 +75,7 @@ public final class VMDeviceTests {
         when(device.load(any())).thenReturn(VMDeviceLoadResult.success());
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         adapter.removeDevices(Collections.singleton(device));
         verify(device).handleLifecycleEvent(VMDeviceLifecycleEventType.UNLOAD);
@@ -87,7 +87,7 @@ public final class VMDeviceTests {
         when(device.load(any())).thenReturn(VMDeviceLoadResult.success());
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         adapter.unload();
         verify(device).handleLifecycleEvent(VMDeviceLifecycleEventType.UNLOAD);
@@ -99,13 +99,13 @@ public final class VMDeviceTests {
         when(device.load(any())).thenReturn(VMDeviceLoadResult.success());
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
         verify(device).load(any());
 
         adapter.unload();
         verify(device).handleLifecycleEvent(VMDeviceLifecycleEventType.UNLOAD);
 
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
         verify(device, times(2)).load(any());
     }
 
@@ -120,7 +120,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         verify(device).load(any());
     }
@@ -141,7 +141,7 @@ public final class VMDeviceTests {
         adapter.getGlobalContext().getInterruptAllocator().claimInterrupt(claimedInterrupt);
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
     }
 
     @Test
@@ -160,7 +160,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         final int claimedInterruptMask = 1 << deviceData.interrupt;
         deviceData.context.getInterruptController().raiseInterrupts(claimedInterruptMask);
@@ -178,7 +178,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         final int someInterruptMask = 0x1;
         assertThrows(IllegalArgumentException.class, () ->
@@ -201,7 +201,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         final int claimedInterruptMask = 1 << deviceData.interrupt;
         deviceData.context.getInterruptController().raiseInterrupts(claimedInterruptMask);
@@ -246,7 +246,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         assertTrue(deviceData.context.getMemoryMap().getMemoryRange(deviceData.device).isPresent());
     }
@@ -268,7 +268,7 @@ public final class VMDeviceTests {
         });
 
         adapter.addDevices(Collections.singleton(device));
-        assertTrue(adapter.load());
+        assertTrue(adapter.load().wasSuccessful());
 
         assertTrue(deviceData.context.getMemoryMap().getMemoryRange(deviceData.device).isPresent());