diff --git a/gofurther/checks.md b/gofurther/checks.md
index b6b32f9..ec2e0fe 100644
--- a/gofurther/checks.md
+++ b/gofurther/checks.md
@@ -2,7 +2,7 @@
 title: Performs a few checks on Phyllome OS
 description: 
 published: true
-date: 2021-11-27T11:19:25.159Z
+date: 2021-11-27T11:38:00.341Z
 tags: 
 editor: markdown
 dateCreated: 2021-11-13T11:39:13.790Z
@@ -63,9 +63,60 @@ cat /proc/cpuinfo | grep svm '(vmx|svm)'
 flags		: fpu vme de  [...] svm [...] sme sev sev_es
 ```
 
-### Check if IOMMU groups have been created are present
-
 ## Validate specific features on the host
 
 > Those commands are valid for only specific Phyllome OS editions
-{.is-info}
\ No newline at end of file
+{.is-info}
+
+### IOMMU-related checks
+
+If your computer ships with advanced hardware virtualization features (*AMD Vi* or Intel *VT-d*), Phyllome OS should have automatically activated them. 
+
+* Verify if that is the case by using the following command, courtesy of the [Archlinux wiki](https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Enabling_IOMMU). 
+
+```
+dmesg | grep -i -e DMAR -e IOMMU
+``` 
+* Make sure the result look like this:
+```
+[    0.600228] iommu: Default domain type: Translated 
+[    0.624416] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
+[    0.624444] pci 0000:00:01.0: Adding to iommu group 0
+[...]
+[    0.624690] pci 0000:0b:00.4: Adding to iommu group 15
+[    0.627236] pci 0000:00:00.2: AMD-Vi: Found IOMMU cap 0x40
+[    0.627987] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).
+```
+* You may also want to learn how isolated your devices are. To do that, use the following script, courtesy of the [Archlinux wiki](https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Ensuring_that_the_groups_are_valid):
+
+```
+#!/bin/bash
+shopt -s nullglob
+for g in `find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V`; do
+    echo "IOMMU Group ${g##*/}:"
+    for d in $g/devices/*; do
+        echo -e "\t$(lspci -nns ${d##*/})"
+    done;
+done;
+```
+
+```
+IOMMU Group 0:
+[...]
+01:00.0 Non-Volatile memory controller [0108]: Intel Corporation SSD 660P Series [8086:f1a8] (rev 03)
+	02:00.0 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:43ee]
+	02:00.1 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] Device [1022:43eb]
+[...]
+	04:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM107 [GeForce GTX 750] [10de:1381] (rev a2)
+	04:00.1 Audio device [0403]: NVIDIA Corporation GM107 High Definition Audio Controller [GeForce 940MX] [10de:0fbc] (rev a1)
+	07:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller [10ec:8125] (rev 05)
+IOMMU Group 1:
+[...]
+09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM204 [GeForce GTX 970] [10de:13c2] (rev a1)
+	09:00.1 Audio device [0403]: NVIDIA Corporation GM204 High Definition Audio Controller [10de:0fbb] (rev a1)
+[...]
+IOMMU Group 14:
+	0b:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Matisse USB 3.0 Host Controller [1022:149c]
+IOMMU Group 15:
+	0b:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller [1022:1487]
+```