X60T - 1 DIMM slot dead

[Andrew479]

Hi,
one slot on my X60T appears not functioning correctly - with any RAM in it, laptop produces 4 short beeps (motherboard failure). The other slot works perfectly fine.
I checked the slot for any cold solder joints and couldn't find any, I also cleaned the slot with pure ethanol - still the same thing.
Any suggestion what should I try next?

[axur-delmeria]

The 10-second salute, perhaps? Remove battery and charger, press and hold power button for 10 seconds.

[Thinkpad4by3]

Try closer to 30, usually works more reliably if done for 30 thab 10.

[Andrew479]

Done full 60, still the same thing.

[axur-delmeria]

Not much you can do at this point, I'm afraid. It could be anything, like a bad solder joint on the RAM slot, failed electronic component (like a capacitor) somewhere between the RAM slot and the northbridge, or even a bad solder joint on the northbridge chip itself.

[Andrew479]

Not much you can do at this point, I'm afraid. It could be anything, like a bad solder joint on the RAM slot, failed electronic component (like a capacitor) somewhere between the RAM slot and the northbridge, or even a bad solder joint on the northbridge chip itself.

So doing reflow should fix it it seems

bad solder joint on the RAM slot

I checked the slot for any cold solder joints and couldn't find any