Problems with 8GB upgrade for W500, Corsair RAM

[gpvillamil]

I'm looking to upgrade a W500 to 8GB RAM.

I found and ordered this from Corsair Corsair Memory — 8GB Dual Channel DDR3 SODIMM Memory Kit (CM3X8GSDKIT1066)

However, once installed, I got the following beep code on startup: 1 - 3 - 3 - 1

The hardware manual, not so helpfully, says that error corresponds to DIMM.

Anything else I should try? Is likely the DIMMs are defective, or is there something else I need to do?

[lead_org]

Don't get Corsair ram modules, they are notorious for incompatibility with Thinkpads.

[awolfe63]

I've had excellent luck doing 8GB upgrades on W500s and T410s using whatever cheap 4GB modules I can find at Frys or Newegg. Patriot, Adata, G.Skill, Mushkin, Samsung.