Memory test - failed

I have a Laptop latitude X300.

I was running the memory test and got failed on WCMATS test.

The message was:

Testing 2656E000h bytes with 01h CPU(s)

Address=0_133A4ED4H, Actual=FCFEFEFEh, Exepted=FEFEFEFE,

Ambiguous SMBIOS data.

 Can someone help?

Thanks