Will Panther Point support Intel Extreme Memory Profile?

[mikeangs2004]

In particular will Panther Point support this memory with full speed:
Patriot Viper Xtreme 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 15000) Desktop Memory Model PXD38G1866ELK
So will Sandy Bridge RAM be fully compatible with Panther Point for Ivy Bridge with full speed?
I know that Intel XMP RAM used w/ some AMD mobos caps memory speed at 1333MHz

 

[jaquith]

The chipsets have nothing to do with (XMP), and XMP is 100% Intel and won't work on AMD. AMD simply uses 'SPD' aka JEDEC. In either case I prefer not to use XMP and always set the RAM manually.

The second question, DDR3 isn't going away anytime soon and SB, SB-E, IB, IB-E, AMD, FX, etc all will use DDR3. The SB-E, IB, IB-E, FX, however are going to have a default memory frequency of DDR3-1600 and FX DDR3-1866 but can and will run DDR3-1333 with some (1%~2%+) hit in overall performance. The SB, SB-E, IB, IB-E, FX can support DDR3-2400 and to an extent do benefit from the higher frequencies.

In general, I recommend DDR3-1600 CAS 8/9 with 4GB/stick densities.

Best generic answer I can give you.

 

[mikeangs2004]

Will my Patriot memory be automatically set to 1866 or 1600 (full speed) if used on Ivy Bridge if I use a Gigabyte mobo that supports up to 2133 w/o overclocking?

 

[mikeangs2004]

Will overclocking RAM hurt mobo or RAM life expectancy?

 

[jaquith]

The IB will default to the highest 'SPD' not XMP as encoded in the RAM, but not faster that the IB's default aka DDR3-1600. Meaning, in order for DDR3-1866 full speed to be achieved you'll need to either set the {DRAM Frequency-> DDR3-1866MHz or Memory Multiplier-> 18.66} depending on the MOBO.

I OC my RAM greater than its' Rated Frequency, CAS Timings, and Voltage. So will OC'ing the RAM shorten it's life -- depends on how much Voltage is applied to the DRAM and also the CPU's IMC; exceeding the Voltages does 'shorten' its' life, but the $100 question is by 'How Much'?

The answer is how much above BOTH the CPU's and RAM's rated voltages. The IB more than likely will be DDR3 @ 1.50v, but it might be 1.35v -- no one knows yet. On the current Sandy Bridge (SB) the limit is 1.55v~1.60v and VCCIO (IMC) of 1.20v with no damage. However, the real damage is from 'K' or 'X' styled CPU's SB or SB-E exceeding vCore's >1.35v~1.40v.

I've been OC'ing for a l-o-n-g time and the stuff I damage 9/10 are the GPU's and very rarely the CPU or RAM. Unlike the CPU most RAM has a 'Lifetime Warranty' and ditto on some GPU's -- so I don't worry about those components. As far as CPU's IMO the real damage is less from the Voltage and considerably more from the Temperatures -- so I water cool. I keep further way from the CPU's TJMax than 99% of the air cooled and stock temps. Therefore, long-term damage doesn't concern me.

 

[mikeangs2004]

I thought Noctua or high end air cooled performs similar to liquid cooled for overclocking?

Except custom liquid ones.

 

[jaquith]

I use Koolance and everything is blocked on my gaming rig; aka custom cooling. The Noctua are fine HSF's.

 

[mikeangs2004]

Best answer selected by mikeangs2004.