8-12 TroubleshootingSOLVING PROBLEMSWhen the server fails to operate as expected, see the following to find out your problem and followthe instruction given before asking for repair.If the server still fails to operate successfully after solving your problem, take a note on the on-screen message and contact your sales agent.Problems with NEC Express ServerNo screen display appears with beep:T Are DIMMs installed securely?→ Check whether DIMMs are connected to the mating connectors firmly.→ Check whether DIMMs of different specifications are installed in the specificbank. See Chapter 9 for the specifications of DIMMs.→ DIMMs must be populated in pairs and in the following order:#1A and #1B, and then #2A and #2B.→ Installed DIMMs must be the same speed and must all be registered.When two pairs of the DIMMs are installed, the largest pair of the DIMMs mustbe installed to slots #2A and #2B.→ Installed DIMMs starting from the one having largest memory.→ Take a note of beep code pattern, and take appropriate action according to thetable listed earlier in "Beep Codes".Fail to power on the server:T Is the server is properly supplied with power?→ Check if the power cord is connected to a power outlet (or UPS) that meets thepower specifications for the server.→ Make sure to use the power cord provided with the server. Check the power cordfor broken shield or bent plugs.→ Make sure the power breaker for the connected power outlet is on.→ If the power cord is plugged to a UPS, make sure the UPS is powered and itoutputs power. See the manual that comes with the UPS for details.Power supply to the server may be linked with the connected UPS using the BIOSSETUP utility of the server.
