i5-580m doesn't need more than 1066 CAS7 but i7-740qm can use 1333 CAS9.
I have a Vaio EC with i5-580m but I may get a Vaio F with i7-740qm, so I'd like to buy the G.SKILL F3-10600CL9D-8GBSQ (2x4GB at 1333 CAS9) to use them now with the EC and later with the F. My problems are:
- I've seen (here) that some people had problems with 2x4GB on laptops. Are these kits (2x4GB 1066 or 1333) compatible at all with Vaio EC or Vaio F?
- is it for sure that 1333 CAS9 will underclock completely by itself to 1066 CAS7 (emphasis on CAS7) on the i5? Keep in mind I have no BIOS options to set custom timings.
- is it a smart thing to go for 2x4GB 1333 CAS9 on the i5 (in case it runs at CAS7), or should I stick to 1066 CAS7 just to be sure it runs?
Thanks
(why I'm not getting 8GB directly from Sony? Cause it's bloody expensive, on NewEgg the 2x4GB@1333 is $99 now due to some $15 coupon while on SonyStyle it's a +$250 option)
(the specific EC I'm having is VPCEC390X, built to order)
I have a Vaio EC with i5-580m but I may get a Vaio F with i7-740qm, so I'd like to buy the G.SKILL F3-10600CL9D-8GBSQ (2x4GB at 1333 CAS9) to use them now with the EC and later with the F. My problems are:
- I've seen (here) that some people had problems with 2x4GB on laptops. Are these kits (2x4GB 1066 or 1333) compatible at all with Vaio EC or Vaio F?
- is it for sure that 1333 CAS9 will underclock completely by itself to 1066 CAS7 (emphasis on CAS7) on the i5? Keep in mind I have no BIOS options to set custom timings.
- is it a smart thing to go for 2x4GB 1333 CAS9 on the i5 (in case it runs at CAS7), or should I stick to 1066 CAS7 just to be sure it runs?
Thanks
(why I'm not getting 8GB directly from Sony? Cause it's bloody expensive, on NewEgg the 2x4GB@1333 is $99 now due to some $15 coupon while on SonyStyle it's a +$250 option)
(the specific EC I'm having is VPCEC390X, built to order)
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