Inspirion 1121 : SODIMM 4GB

Grey.Leo,

Below is the memory information for this system.

Troubleshooting

1. Memory errors on the system is signaled by a 2 beep failure code. If all memory fails the LCD does not turn on. Troubleshoot for possible memory failure by trying known good memory modules in the memory slots on the bottom of the system. As always, follow the instructions in DSN and perform all steps suggested to verify the problem.
2. For intermittent problems, try swapping memory modules with another system and see if the problems continue.  If no swap is available, then remove one memory module at a time to see if the problems continue.  If the problem can be isolated to one module, then try testing the system repeatedly (using one of the tests mentioned above) with only the suspected problem memory module installed.

The Inspiron™ 1121 / 11z system supports dual-channel DDR3 SDRAM with memory speeds of 1333 MHz. At 1333 MHz, this memory offers a significant increase of memory performance over previous platforms.

• The memory solution is implemented in a dual-channel configuration, allowing the system to have twice the memory bandwidth while using the same memory technology.
• Memory modules must be installed as a perfectly matched pair to take advantage of the dual-channel memory bus. If not a matched pair, the system's memory bus operates in a single-channel configuration.
  NOTE:
  The 1333 MHz Memory on  Inspiron™ 1121 / 11z operates at 800 MHz.

• Memory Configuration

  Inspiron™ 1121 / 11z has two user-accessible SODIMM sockets, both slots can be accessed after removing the memory door. When both DIMM connectors are populated, the system has optimum dual-channel performance unless channels A and B have different amounts of memory.

  Dell Inspiron™ 1121 / 11z DIMM Configuration
  Slot A	Slot B	Total Memory
  1024 MB	1024 MB	2048 MB
  2048 MB	None	2048 MB
  2048 MB	1024 MB	3072 MB
  2048 MB	2048 MB	4096 MB
  4096 MB	None	4096 MB
  4096 MB	1024 MB	5120 MB
  4096 MB	2048 MB	6144 MB
  4096 MB	4096 MB	8192 MB