8gb ram not working in X220 ?

[rzl]

Hi, i got this ram from ebay:



i mounted in an empty slot and the system hangs on boot. three beeps, pause, three beeps, a single beep.

hardware maintenance manual says faulty ram.

the seller says my laptop won't recognize it because it's cl11 and my system only works with cl9, but i think it's BS.

Could anyone confirm it's faulty ram?

[Cigarguy]

No one can "confirm" it's faulty RAM without having the exact RAM chipsets on hand. Being that it's a no name Ebay RAM, it would not surprise me that it doesn't work. That's why I always buy name brand RAM.

[Stevo]

If you're adding RAM, you need to match it to the RAM currently installed for best performance, especially for dual channel.

Or if it's easier, buy a couple of sticks of new matched RAM to replace what you have in there, making sure the new RAM is compatible with the machine of course.

And agree - use name brand RAM.

Hope this helps.

S

[jdrou]

Seems pretty clear it isn't the timing; Crucial sells "guaranteed compatible" CL11 memory for the X220. Not 8GB modules though unfortunately.

Did you test it with no other modules installed? Tried it in both slots?

I wouldn't consider Silicon Power to be "no-name"; it's a Taiwan company that's been making flash memory for 10 years.

[rzl]

Yes, i tried all the configuration possible: single stick, both sticks, swapping 'em, everything.

Sent ram back to seller and got money back, although i had to open an ebay trouble and ask for support to paypal people.

People, don't buy things from Naples, Italy.

[Puppy]

The installed 4 GB module is made by Hynix. I bought the same second one and it works.