G.Skill 8GB Upgrade to 24GB

I have a ASUS P8P67-M PRO, i5 2500k & G.Skill F3-10666CL7D-8GBRH. For rendering in AE I need more RAM. Will the following module work with my old RAM? It has different timings than the 8GB kit.

G.Skill F3-10666CL9D-16GBXL(8Gx2)
*G.Skill guarantees 2 Dimms dual channel operation would reach announced specification.

Thanks in advance.
3 answers Last reply
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  1. Welcome to Tom's Forum! :)

    I've responded a few times on this question, on DDR3-1333 CAS 9 mixing two sets of 8GB/stick density works 90%+ of the time. The F3-10666CL9Q-32GBXL kit is a better option for 32GB. I 'get' the cost difference so you'll need to weigh-in if $25 is worth the aggravation.
  2. Thanx for your reply! I already have a system with G.Skill F3-10666CL7D-8GBRH (2x 4GB) and I want to add G.Skill F3-10666CL9D-16GBXL (2x 8GB). So the cost difference is a bit bigger. Is 90% for this setup also realistic?

    Asus p8p67-m pro
    i5 2500k
    G.Skill F3-10666CL7D-8GBRH (2x 4GB)
    Windows 7 64-bit

    What I would like to add:
    G.Skill F3-10666CL9D-16GBXL (2x 8GB) (€ 105)
  3. My oversight, probably won't be in my top choices. The RH and XL are completely different IC's not to mention totally different CAS. Trust me, I 'get' you can run the RH's @ CAS 9. Further, I'm not a fanboy of mixing densities either.

    So, can it work sure ... can it run reliably maybe. You are now an 80/20 to having 24GB working reliably.

    If it 'my' rig, I would either re-purpose or eBay or in a drawer the F3-10666CL7D-8GBRH. I don't like potential problems hanging over my head nor a multi-hour job going poof...

    You ask 10 people you'll get different answers. On my servers even with ECC I don't mix-match density, CAS, type, IC's, etc.
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