New build for mister Wanny - Page 2

lehtv · 05-29-2012, 22:35 | posts: 3,082

Quote:

Originally Posted by Tat3

Loose timings and should be able to increase speed of the ram without adding any voltage.

That's a fools errand. If you want fast RAM without emptying your pockets, buy Samsung 32nm RAM and overclock that, it's 1600MHz CL11 1.35V that costs $5 more than 1600MHz CL9 1.5V, but it overclocks to 2133MHz CL10 1.5V.

Quote:

As far as I know Ivy Bridge loves high speed RAM.

Source?

Quote:

Also this gives you more headroom when you overclock something because the RAM will let you go further .

Ivy Bridge CPU overclocking is completely independent of RAM clocks. The same is true of the predecessor, Sandy Bridge. How can you not know this

Tat3 · **Memory**: 3*2Gb 8-8-8-20 @ 1680MHz

Quote:

Originally Posted by lehtv

That's a fools errand. If you want fast RAM without emptying your pockets, buy Samsung 32nm RAM and overclock that, it's 1600MHz CL11 1.35V that costs $5 more than 1600MHz CL9 1.5V, but it overclocks to 2133MHz CL10 1.5V.

I'm not sure what that Mushkin one was based or how far it would go, but thats how it usually is (if same ram isnt just sold under different name).

Quote:

Source?

Ivy Bridge CPU overclocking is completely independent of RAM clocks. The same is true of the predecessor, Sandy Bridge. How can you not know this

http://www.overclock.net/t/1247413/i...ide-at-the-end

Quote:

CPU Frequency=CPU Multiplier X Base Clock
Memory Frequency= Memory Multiplier x Base Clock.

That means if you increase base clock you increase both memory and CPU frequencies, you also increase the iGPU’s frequency as well. However with Ivy Bridge you shouldn’t be increasing the Base Clock for Air/H2O overclocking as BCLK OC takes a toll on everything on the PCI-E bus including your GPUs and your SSD/HDDs, so it is pretty much reserved for benching with colder temperatures. Don’t worry about increasing BCLK for memory speeds as there are enough memory multipliers with Ivy bridge/Z77 so you can always find the speed you want unlike with Sandy Bridge. However you can increase the BCLK slightly for high memory OCes where certain multipliers are better than others

...

The Z77 Chipset provides the memory multipliers of: 10.66x, 13.33x, 14.00x, 16.00x, 18.00x, 18.66x, 20.00x, 21.33x, 22.00x, 24.00x, 26.00x, 26.66x, 28.00x, 29.33x, 30.00, and 32.00x. All of which this board provides. If you want high frequency it is best to use the 28.00x multiplier for speeds above 2800 MHz with slight BCLK increase.

...

Memory timings are a bit trickier; you should use XMP and then loosen or tighten timings from there. However for Z77 GIGABYTE has tightened up most of the latencies involved to improve 2D efficiency, however this means that the max memory OC might not be as high as it can be, so below I am showing you how to loosen up all your memory timings for high clocks. The second timings are pretty much maximized, and the third timings start with TREFI, and the 3rd timings are what provide that increased efficiency here, and they are changed to 8, but at stock they are 3.

So there are mulpliers which are better than others and base clock is still there which is same for cpu and ram.

BlackZero · 05-29-2012, 23:24 | posts: 8,075 | Location: United Kingdom

Quote:

Originally Posted by Tat3

As far as I know Ivy Bridge loves high speed RAM.

Sandy Bridge reacts well to memory frequency increase, Ivy bridge shouldn't be much different either. Memory latencies don't seem to mean much though.

lehtv · 05-30-2012, 08:13 | posts: 3,082

Quote:

Originally Posted by Tat3

So there are mulpliers which are better than others and base clock is still there which is same for cpu and ram.

Yes, but you seem to have missed the important part:

Quote:

Originally Posted by overclock.net

However with Ivy Bridge you shouldn’t be increasing the Base Clock for Air/H2O overclocking as BCLK OC takes a toll on everything on the PCI-E bus including your GPUs and your SSD/HDDs

As I said, overclocking the CPU is independent of RAM clocks.

Wanny · *Last edited by Wanny; 05-30-2012 at 13:46.*

Okay so guys everything has been decided except for RAM. Honestly, I would like to get better tight timings and something above 1600 mhz. So I found ram @1866mhz and tight timings @1.5V. Will the GA-Z77X-UD5H support it? (only says 2400(OC) on gigabyte)

Latest build update :

CPU : i7 3770k
RAM : G.Skill RipjawsX 1.5v 1866mhz 8-9-9-24
MOBO : GA-Z77X-UD5H
PSU : XFX PRO750W XXX edition
GPU : EVGA GTX670 FTW
CASE : Rosewill Thor v2
SSD : Crucial M4 256gb
HDD : Spinpoint F3 1tb

All for 1750$ cnd shipped at my house

EDIT : CPU, PSU, dvd drive $ GPU ordered!

lehtv · 05-30-2012, 14:09 | posts: 3,082

Quote:

Originally Posted by Wanny

Will the GA-Z77X-UD5H support it? (only says 2400(OC) on gigabyte)

Yes, it means it supports up to 2400Mhz.

But you will never notice any difference between 1600mhz and 1866Mhz. 2133Mhz could make a difference but only in specific applications, not in everyday computing or gaming. If you only buy from DirectCanada, I stand by my original recommendation

Tat3 · **Memory**: 3*2Gb 8-8-8-20 @ 1680MHz

Quote:

Originally Posted by lehtv

As I said, overclocking the CPU is independent of RAM clocks.

It may not matter much as you have multipliers for both to find nice spot. However some multipliers are better than others and CPU is not independent of RAM clocks as long as you have base clock in both of those. You have separate multipliers but not separate base clock so it's not completely idependent.

Quote:

Originally Posted by Wanny

Okay so guys everything has been decided except for RAM. Honestly, I would like to get better tight timings and something above 1600 mhz. So I found ram @1866mhz and tight timings @1.5V. Will the GA-Z77X-UD5H support it? (only says 2400(OC) on gigabyte)

Basicly no increse in price (as we arent talking about very cheap PC) and some extra points in 3Dmark and somewhere else. I would take that faster ram.

lehtv · 05-31-2012, 12:09 | posts: 3,082

Quote:

Originally Posted by Tat3

It may not matter much as you have multipliers for both to find nice spot. However some multipliers are better than others and CPU is not independent of RAM clocks as long as you have base clock in both of those. You have separate multipliers but not separate base clock so it's not completely idependent.

Sure, you have the same base clock, but as long as you're not adjusting the base clock (which you shouldn't do), RAM speed has zero bearing on how much you can OC the CPU. Faster RAM doesn't increase your capacity for OC, simple as that.

Tat3 · **Memory**: 3*2Gb 8-8-8-20 @ 1680MHz

Quote:

Originally Posted by lehtv

Sure, you have the same base clock, but as long as you're not adjusting the base clock (which you shouldn't do), RAM speed has zero bearing on how much you can OC the CPU. Faster RAM doesn't increase your capacity for OC, simple as that.

Well, Hardware Secrets seems to do that anyways.
110MHz*42 = 4.62GHz which is faster than 4.2GHz with base clock set to 100MHz.

http://www.hardwaresecrets.com/artic...Review/1537/17

lehtv · 05-31-2012, 12:52 | posts: 3,082

Odd. I don't know why they do it that way, because the CPU clock multiplier can be set as high as 57 on a 2600K, which translates to 5.7GHz with the standard 100MHz BCLK. Since you will hit a wall at 5.0GHz unless using LN2, there's no need to adjust the BCLK to achieve a maximum overclock. BCLK overclocking is useful only with locked multiplier CPUs like i5-2500, i.e. max out the turbo multiplier and then adjust BCLK for a slight boost.