Dell PowerEdge M420 Hardware Owner's Manual - Page 300

14 For each expansion card you removed in step 10, perform the following steps: a Open the blade. See "Opening the Blade" on page 149. b Reinstall one of the expansion cards. c Close the blade. See "Closing the Blade" on page 159. d Install the blade and turn it on. See "Installing a Blade" on page 148. e Run the appropriate diagnostic test. 15 For M610x only, if the problem persists after reseating the expansion cards, reseat the power and data cables and run the appropriate diagnostic test. 16 If the tests fail, see "Getting Help" on page 337. Troubleshooting Processors 1 Remove the blade. See "Removing a Blade" on page 145. 2 Open the blade. See "Opening the Blade" on page 149. 3 Ensure that the processor(s) and heat sink(s) are properly installed. See "Processors" on page 225. 4 If your system only has one processor installed, ensure that it is installed in the primary processor socket. See Figure 7-12 or Figure 7-11. 5 For a PowerEdge M905 system, check that hypertransport (HT) bridge cards are installed in sockets CPU3 and CPU4, and that both cards are fully seated in the processor sockets. See "HT Bridge Card (PowerEdge M905 Only)" on page 242. 6 Close the blade. See "Closing the Blade" on page 159. 7 Install the blade. See "Installing a Blade" on page 148. 8 Run Quick Tests in the system diagnostics. See "Running System Diagnostics" on page 303. If the tests fail or the problem persists, see "Getting Help" on page 337. 300 Troubleshooting Your System