Dell 9310 Memory or RAM (Random-Access Memory) failure (2,4)

[puccovelli]

Hi all, I hope this is the right place to post.

I'm having a problem with a Dell 9310 which is posting 2 orange, 4 white lights on startup (hangs on Dell BIOS logo). The service manual says its a RAM failure.

I've taken the motherboard out and noticed that one of what looks like an SMA 0805 resistor has blown (see photo). The board is an LA-J144P Rev 2.0(A01).

1] Could someone confirm what the component that has blow actually is (and where I could get another from).
2] Whether this component is likely to cause the RAM failure issue, and if replacing it should fix the issue?

Thanks in advance. If you need any further info, please let me know.