Dell PowerEdge M420 Hardware Owner's Manual - Page 289
Troubleshooting the Keyboard, the blade or to the back-panel iKVM module.
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Troubleshooting the Keyboard 1 Ensure that the blade(s) is turned on. 2 Verify that the iKVM firmware revision is current. 3 Check the keyboard connection to either the front-panel connector on the blade or to the back-panel iKVM module. 4 If the keyboard is connected to an external KVM using a SIP, check that the SIP is compatible with the KVM. 5 If two or more blades are installed in the enclosure, select a different blade. If the keyboard is connected to the back-panel iKVM module and works with another blade, the first blade may need to be reseated. See "Removing and Installing a Blade" on page 145. If reseating the blade does not help, the blade may be faulty. See "Getting Help" on page 337. 6 Swap the keyboard with a known-working keyboard and repeat step 3 and step 5. If the keyboard does not work with any blade, see "Getting Help" on page 337. Troubleshooting the Mouse 1 Ensure that the blade(s) is turned on. 2 Verify that the iKVM firmware revision is current. 3 Check the mouse connection to the either the front-panel connector on the blade or to the back-panel iKVM module. 4 If the keyboard is connected to an external KVM using a SIP, check that the SIP is compatible with the KVM. 5 If two or more blades are installed in the enclosure, select a different blade. If the mouse is connected to the back-panel iKVM module and works with another blade, the first blade may need to be reseated. See "Removing and Installing a Blade" on page 145. If reseating the blade does not help, the blade may be faulty. See "Getting Help" on page 337. 6 Swap the mouse with a known-working mouse and repeat step 3 and step 5. If the mouse does not work with any blade, see "Getting Help" on page 337. Troubleshooting Your System 289