[SOLVED] PC10666 DDR3 1333MHz mixed with PC3L - 12800U

[Earendil86]

Hello!

What I hope is a quick question. I'm trying to extend the useful life of my desktop and am running into RAM issues when using modelling programs. Currently I have (bought in 2009):

Motherboard: EVGA X58 SLI LE Motherboard LGA 1366, Intel X58, SATA, SLI Ready, Triple Channel DDR3 support, RAID, Hyperthreading support
Processor: Intel Core i7 920 Processor BX80601920 2.66GHz, LGA 1366, 4.8GT/s QPI, 8MB L3 Cache, QuadCore, HyperThreading, Bloomfield, Retail
Ram: Corsair XMS3 Tri Channel 6GB PC10666 DDR3 Memory 1333MHz, 6144MB (3 x 2048)

This Motherboard has 6 slots so I have 3 empty ones. I happen to have a single stick of:

4GB 1Rx8 PC3L - 12800U (HP Part Number: 698650-154)

Can I mix this into the 4th slot and will it run?

Thanks,

 

[jay32267]

No one can tell you. You have to try it to know.
I actually still have an i7-920 and I replaced it with an i7-980 and it has a triple channel MB.
It had 6 GB (3 @ 2GB) and I went to 6@ 2 GB for 12GB.

 

[SamirD]

You can try it and see how it does. PC3L is compatible with PC3 so it should work well.

Also, you can look into if swapping the processor over to a xeon will open the doors to using ecc reg memory which is much cheaper at $1/gb or under. You could then easily load it up with 6x8 for 48GB of ram.