x220 with 16GB RAM

[igtoth]

I need to know about memory about 16 chips per module or 8 chips per module especially 8GB modules whatever works on any 2nd generation i core series (Sandy Bridge microarchitecture); Also to know better, these processors have a digit in that i3/i5/i7-(2)xxx are sandy bridge microarchitecture.

I run a i5-2410M with two 4gb modules. Each has 16modules per dimm.

*-bank:0
description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)
product: HMT351S6CFR8C-H9
vendor: Hynix/Hyundai
physical id: 0
slot: ChannelA-DIMM0
size: 4GiB
clock: 1333MHz (0.8ns)
*-bank:1
description: SODIMM DDR3 Synchronous 1333 MHz (0.8 ns)
product: RMT3020EC58E9F1333
vendor: Fujitsu
physical id: 1
slot: ChannelB-DIMM0
size: 4GiB
clock: 1333MHz (0.8ns)
Incidently a slightly dated version of memtest says memory throughput is a meger 3.5gb/s.

I run w/ 1866

[PandorasThinkpad]

Hi!

I have two Crucial 8GB (CT102464BF160B.M16) Modules running....everything fine...

Greets,

PanDoRA

[alanx]

How does one roll back the Bios to the 1.28 version as per earlier post to maximize the speed of 16gb ram on my x220. I too would like to rejuvenate my x220, right now I have bios version 1.40. Thank you.

[johnmcdonnell]

How does one roll back the Bios to the 1.28 version as per earlier post to maximize the speed of 16gb ram on my x220. I too would like to rejuvenate my x220, right now I have bios version 1.40. Thank you.

If you'd rather not roll back there's a modified version of the 1.40 BIOS that unlocks 1866MHz RAM speeds available here: http://x220.mcdonnelltech.com/resources/