03-21-2011 08:20 PM - last edited on 04-12-2011 08:20 AM by JaneL
I have a question about the actual ram speed in the Lenovo x120e. Mine came with a single 2GB DDR3-1333 (PC3-10666). When I got it, I ran CPU-Z to see what the memory actually ran at, because I had 2x4GB DDR3-1066 (PC3-8500) from an old laptop that died and I wanted to use it in the x120e. CPU-Z detected the ram as DDR3-1333, but what puzzles me is the actual speed the memory is running at, 269Mhz. This is with the power plugged in and maximum performance settings, I first thought it might downclock the RAM while on battery to save power. This is not the case.
Screenshot of the original DDR3-1333 ram below.
I then installed the 2x4GB DDR3-1066, the system booted up fine and works fine. Below is the screenshot of CPU-Z.
As you can see, the speed remains the same (highlighted in Red). Also the timings (Blue) are identical to what the original ram was running at...
So my question is, why is the speed so low, and why is Lenovo shipping DDR3-1333 in the x120e when it looks like its clearly not necessary.
PS. If someone can run CPU-Z on their x120e and see what their ram runs at, It'd be appreciated for comparison. Here's the link: http://www.cpuid.com/softwares/cpu-z.html
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03-22-2011 12:00 AM - last edited on 03-22-2011 06:09 AM by Maliha
The E-350 APU is only capable of using DDR3-1066 (see AMD's page for reference: http://www.amd.com/us/products/notebook/apu/mainstream/Pages/mainstream.aspx#3)
As for why CPU-z is reporting 269 mhz instead of 533 mhz, I'd attribute that to a bug in CPU-z. Using HWinfo32, the correct RAM speed of 533 mhz is reported (http://www.hwinfo.com/download32.html). Here's what HWinfo32 reports (I get essentially the same CPU-z screen as you do)
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03-22-2011 06:01 AM
Thanks, I didn't think it could be a bug in CPU-Z. I've been using it for many years and it's always been accurate. But perhaps the AMD "Zacate" platform being new, who knows...
But it looks like my DDR3-1066 memory is good to use.
03-23-2011 06:06 PM
Just as a follow up, I had a chance to run HWinfo today, with the original 2gb DDR3-1333 stick and my 2x4gb DDR3-1066 sticks. Both report running at 533mhz. All is well.
Still makes me wonder why Lenovo is using faster chips than needed. Unless they got a great deal on a big volume shipment, knowing they work fine in slower speeds if needed.
Hope people aren't paying more for DDR3-1333 sticks to use in these x120e's.
03-23-2011 07:05 PM
03-23-2011 07:07 PM
04-08-2011 04:43 PM
Just to be on the safe side. The lenovo x120e can go up to 8gb (2 x 4gb) of ram right? There are some conflicting reports about the maximum capacity.
It can. Many of us are running it with 2x4GB.