Don't Skimp On Ram

well just for comparison, the ddr3 sticks im running here are rated 1.9v, and my foxconn board has decided to set the default voltage to 2.1v, with no way of lowering it.
ive been assured by foxconn tech support that nothing is going to spontaneously combust, but they're definately gonna get it if something does go wrong...
 
1.65 is fine with an i5/i7 - you'll have a hard time finding anything that'll do 1600mhz that needs less than 1.6v (iirc, ripjaws only need 1.6v)

Sounds like crap ram - presumably popular auction site vendor isn't coming up with the goods on the warranty front?
 
Mr Krugga said:
If it's i3/5/7 Ready then yes, it has to be 1.5V too. And yes, anything above this is overvolting in this case. Even if the RAM is rated at 1.7V
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Technically its overvolting, according to standards set, however we all know most RAM will work just as well with a bit more voltage than the 1.5v standard which is just a standard made by people who want to simplify things and come to some agreement so that manufacturers can have a reference to adhere to and compatiability is had between different manufacturers of boards, chipsets etc.. there is no law stating that the RAM must run the rated speed at the standard voltage, if it was so then the market would be extremely expensive for faster RAM as the chips able to do that would be much rarer than those that could run a certain speed with a little increase in volts. Bog standard everyday ram is usually run at stock JEDEC standard, manufacturers also program standard timings into out of spec RAM for compatiability sake, so that it would actually BOOT in boards, 'exotic' ram running speeds that don't have a standard or even those with standard speed but tighter timings tend to require a higher voltage and its proven over the years to have little to no effect on their overall lifespan, while DDR3 is newer i have no doubt manufacturers have faith in the higher voltage working just fine, or else they'd sell them without/shorter warranties or just not do it at all.

As for the i7 limit being 1.65v, the actual thing to keep in mind is the difference between QPI and DRAM voltage, as long as it does not exceed 0.5v then over 1.65v for RAM is safe.

For example - Qpi set to 1.35v - a voltage of 1.8v for RAM should be safe as its less than 0.5v difference, whereas a DRAM voltage of 1.95v would not be as it exceeds 0.5v
 
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adrichardson81 said:
1.65 is fine with an i5/i7 - you'll have a hard time finding anything that'll do 1600mhz that needs less than 1.6v (iirc, ripjaws only need 1.6v)

Sounds like crap ram - presumably popular auction site vendor isn't coming up with the goods on the warranty front?
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lots of stuff made with the elpida 40nm chips will do 1600 CAS7 on 1.35V :eek: like the G.Skill ECO
 
adrichardson81 said:
1.65 is fine with an i5/i7 - you'll have a hard time finding anything that'll do 1600mhz that needs less than 1.6v (iirc, ripjaws only need 1.6v)

Sounds like crap ram - presumably popular auction site vendor isn't coming up with the goods on the warranty front?
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I didn't want to return the sticks as I don't think they're the problem, he happily replaced the original motherboard...

My Coolit Eco arrived today so I've just overclocked the i5 to 3.2 as suggested in a thread in the overclocking section, and the ram is running stable at 1280mhz where as yesterday it was blue screening and not getting into windows!

I really don't have a clue whats going on...Could the volts going to the cpu be a factor considering the memory controller is on the i5?
 
thingemajib said:
hmm, that what i thought when i first saw it, but thats how the bios has been coded and i have foxconn's word that nothing bad is going to happen ... *insert reference to suicides here*
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ddr2 is 2.1 anyway? i take it your running on an am3 board in which case the memory controller wont burn out like it would on intel
 
i5 750's only officially support upto 1333MHz - you might also need to adjust CPU settings to get it to work at anything quicker.
 
Jokester said:
i5 750's only officially support upto 1333MHz - you might also need to adjust CPU settings to get it to work at anything quicker.
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The asus board I have acknowledges this and offers 1600 support through bios overclocks (but they don't work, at least not for me)
 
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