hutnik
1 Copper

XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2slots

Hi, I have:

- DELL XPS 17 L702x

- i7-2720 QM

- Motherboard DELL 0C6YV7

- NVIDIA GeForce GT 555M 1GB 3D

- FHD 1920x1080

- SERVICE TAG: <Service tag removed>

I have 8GB RAM. 2x 4GB RAM DDR3 SAMSUNG SO-DIMM PC3-10600S-09-11-F3 (667 MHz) 1.5V.

Can I throw away ram sticks mentioned above and put 2x different ram sticks but with 1.35V? I won’t mix sticks with 1.35v and 1.5v.

I have 2 free ram sticks with specification (together 16GB):

- 8GB RAM GOODRAM DDR3 PC3-12800 SO-DIMM 1600 MHz CL11 1.35v.

Will it works or I have to search specifically for PC3 1.5V sticks? Sorry for newbie question.

Apart from this L702x with i7-2720 QM and FHD still kicks **bleep** in 2018 year. Top notch quality.

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6 Replies
JOcean
5 Rhenium

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

Yes you can. DDR3 1.5v and DDR3 1.5v are identical. And to go a step further, DDR3L is dual voltage and could also be used. A little more information in the following post.

http://www.tomshardware.com/answers/id-1771553/35v-memory.html




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ejn63
5 Rhenium

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

 Only the L702x with four memory slots supports 16G.  The 2-slot model supports 2x4=8 max.

In general, DDR3L can be used in place of DDR3 -- but don't mix voltages in the same system.

http://www.crucial.com/usa/en/compatible-upgrade-for//xps-l702x-%282-sodimms%29

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hutnik
1 Copper

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

@ejn63 wrote:

 Only the L702x with four memory slots supports 16G.  The 2-slot model supports 2x4=8 max.

In general, DDR3L can be used in place of DDR3 -- but don't mix voltages in the same system.

http://www.crucial.com/usa/en/compatible-upgrade-for//xps-l702x-%282-sodimms%29

R U sure?

Cause I have DELL E6420 (i5-2520m) with 2 ram slots that theoretically (according to DELL) supports only max to 8GB RAM, but I’ve put 2x 8GB RAM sticks and It works well. Full 16GB functioned. But I had to upgrade BIOS to newest.

Maybe DELL says that XPS L702x with 2 ram slots supports max to 8GB RAM but practically it’s different? Anyone tries in practice to upgrade L702x with 2 ram slots to 16GB RAM?

8GB RAM max capacity would be disaster :(.

@JOcean wrote:

Yes you can. DDR3 1.5v and DDR3 1.5v are identical. And to go a step further, DDR3L is dual voltage and could also be used. A little more information in the following post.

http://www.tomshardware.com/answers/id-1771553/35v-memory.html

Summarizing, I understand, that I can use with my L702x:

- 2x DDR3 1.5v

- 2x DDR3 1.35v

- 2x DDR3L 1.5v/1.35v

Only I have to watch out not to mix 1.35v with 1.5v. Correct?

--------------------------------------------------------

I’ve read on topic: https://www.dell.com/community/Laptops-General-Read-Only/16GB-ram-in-my-XPS17-L702X-NON-3D/td-p/3775...

that:

"The notebooks with 2 DIMM slots CAN use up to 16GB RAM. 2x8GB 1333 SO-DIMM DDR3. There have been numerous reports in this forum that substantiate this."

So, CAN I PUT 2x 8GB sticks to have 16GB TOTAL?

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ejn63
5 Rhenium

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

Officially, according to Dell - no.  According to Crucial (which tests and guarantees compatibility) - no.

It may work - but in case it does not, make sure you understand your memory seller's return/restocking charges before buying.

 

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hutnik
1 Copper

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

Ok, I’ve examined it empirically.

DELL XPS 17 L702x (BIOS A19) with 2 ram slots (3D graphics 1GB version) works with 2x 8GB DDR3 PC3 1.35v. Laptop recognized 16GB with no problem.

So problem is solved. Topic may be closed. Thanks for answers.

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Highlighted
UserUIBS
2 Bronze

Re: XPS 17 L702x WHAT RAM (1.5v or 1.35v) UPGRADE TO 16GB 2s

I confirmed. I bought the Crucial CT2KIT102464BF160B 16Go Kit (8Gox2) (DDR3L, 1600 MT/s, PC3L-12800, SODIMM, 204-Pin) on amazon (70€) (I installed the DDR3L version based on the crucial.com scanner even though there is a sticker on my motherboard DDR3 only). In Process Hacker, I see that the 16GB of ram are recognized: https://imgur.com/8HwM8Yh . My laptop is Dell XPS L702X with only 2 ram sockets

It worked for me, thanks a lot.

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