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post #6981 of 7945
Quote:
Originally Posted by tbob22 View Post

Well, you have to admit 1600mhz uncore is a bit too low. Stock usually sits around 2400-2800mhz depending on the configuration.

I tested some memory clocked at 1600mhz and compared the uncore at 2400mhz, 3200mhz, and 3800mhz (posted a few pages back). The write speeds increased a bit over 30% just going from 2400mhz (15,330 mb/s) to 3200mhz (20,039mb/s), and about 55% going to 3800mhz (23,803 mb/s).

Great info.

I like the Uncore at 3.8Ghz but I need 1.320v to make it work. It's a tiny thorn in my side thinking about it and I hate running stability tests with the volts that high on the uncore and the uncore at that speed. It's stable but I don't want to burn it out.
     
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post #6982 of 7945
Quote:
Originally Posted by OCmember View Post

Great info.

I like the Uncore at 3.8Ghz but I need 1.320v to make it work. It's a tiny thorn in my side thinking about it and I hate running stability tests with the volts that high on the uncore and the uncore at that speed. It's stable but I don't want to burn it out.

Yeah, I don't think 3800mhz is worth the extra volts. Around 3000-3200mhz seems to be the sweet spot, I ended up at 3200mhz for 24/7 and was able to run only 1.2v VTT.
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post #6983 of 7945
Quote:
Originally Posted by tbob22 View Post

Yeah, I don't think 3800mhz is worth the extra volts. Around 3000-3200mhz seems to be the sweet spot, I ended up at 3200mhz for 24/7 and was able to run only 1.2v VTT.

It's all a relative end result, especially when it comes to the performance you are looking to get out of the system, vs temps and voltage you are comfortable with.

tbob22 likes his VTT around 1.2. I personally can go to 1.34. Vcore I run 1.375 (sometimes higher) for benching 1.3475 all day to keep it alive.
But mine is a W series.

The X series is not so forgiving with the juice.
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post #6984 of 7945
Here is the triple channel Mushkin kit at 1333Mhz and 2400Mhz Uncore. The scores look better than simply raising the Uncore to 2666 while leaving the RAM at 1066. I bet if the Uncore was 2666 the L3 numbers would be higher.



EDIT: added the Mushkin kit @ 1333 and Uncore @ 2666


Edited by OCmember - 6/14/16 at 8:24am
     
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post #6985 of 7945
Quote:
Originally Posted by OCmember View Post

Here is the triple channel Mushkin kit at 1333Mhz and 2400Mhz Uncore. The scores look better than simply raising the Uncore to 2666 while leaving the RAM at 1066. I bet if the Uncore was 2666 the L3 numbers would be higher.


Those are pretty good numbers, from what is visible. That is a super conservative OC, so it looks pretty on par.
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post #6986 of 7945
Quote:
Originally Posted by DRKreiger View Post

Those are pretty good numbers, from what is visible. That is a super conservative OC, so it looks pretty on par.

Thanks. I edited the previous post with the Uncore at 2666 and RAM at 1333.. the numbers look a little better.

The cores are not overclocked. It's all running on auto except for the Uncore and RAM.


I tried the Mushkin kit in my EVGA rig and it failed miserably. I think it has compatibility issues. Ended up sticking the triple channel G.skill kit back in. Love that kit

I was fooling with my Gaming rig last night and swapped around some BCLK numbers and multipliers. I got it running @ 180.5 x 24. It's still giving me around the same core speed 4.33GHz. The QPI Frequency is 3Mhz lower but still close to 4GHz. It's like 3971MHz. Had to drop the QPI multiplier to 22. The Uncore is right around 3.6Ghz doing 3611MHz. I ended up with some nice RAM speed numbers. It's hitting ~ 900MHz. I got it doing cl8.8.8.21 tRFC 60 @ 1T Stability tested it and it passed. The system feels quicker. Not sure why, I could be imagining things.
     
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post #6987 of 7945
Quote:
Originally Posted by DRKreiger View Post

It's all a relative end result, especially when it comes to the performance you are looking to get out of the system, vs temps and voltage you are comfortable with.

tbob22 likes his VTT around 1.2. I personally can go to 1.34. Vcore I run 1.375 (sometimes higher) for benching 1.3475 all day to keep it alive.
But mine is a W series.

The X series is not so forgiving with the juice.
For me it was more like choosing between these to keep temps under 70c:
4.4ghz 1.325v 3200mhz uncore 1.2v
4.2ghz 1.25v 3600mhz uncore 1.3v
4.1ghz 1.225v 3800mhz uncore 1.35v

They all produced similar temps. I ended up with the first as that gave me the best performance all around.
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post #6988 of 7945
Hello
I am new to the forum and would like to ask a help on coming overclock a X5660.

my system is as follows:
p6t deluxe V2
ZOTAC GTX 970 AMP! Omega Core Edition
i7 920 2.6ghz@ 4.2ghz (ex cpu Now mount the X5660)
Thermalright venus x
6gb G.skill Trident 1600mhz 6-7-6-18 t1


I managed to be stable at 4.4ghz with these settings:
210x21=4.4ghz
Vcore= 1.39
qpi/dram core vol= 1.34
dram bus Voltage 1.64
cpu pll= 1.84

temp max 77°


a 1.39 Vcore you can keep it for daily use?
post #6989 of 7945
Quote:
Originally Posted by tbob22 View Post

4.4ghz 1.325v 3200mhz uncore 1.2v
4.2ghz 1.25v 3600mhz uncore 1.3v
4.1ghz 1.225v 3800mhz uncore 1.35v

Is that a golden chip you have there tbob22 or are the W's like that in contrast to the X's?

And a question for all the users in here. Are those read speeds good enough for 1600, 2000 and 2133 MHz RAM respectively, running on the X5650:
Warning: Spoiler! (Click to show)



How can I break the 30 GB/s barrier if at all?
Edited by CrazyNightOwl - 6/15/16 at 6:30am
post #6990 of 7945
Quote:
Originally Posted by CrazyNightOwl View Post

Is that a golden chip you have there tbob22 or are the W's like that in contrast to the X's?

And a question for all the users in here. Are those read speeds good enough for 1600, 2000 and 2133 MHz RAM respectively, running on the X5650:
Warning: Spoiler! (Click to show)



How can I break the 30 GB/s barrier if at all?

With the corresponding 3.2 and 3.35Ghz uncore your read speeds are perfectly fine.
But since it's a trial version, it doesn't show the whole story unfortunately.

Copy speeds is where it likes to climb closer to 35Gb/s with good RAM.

But ignoring what it's not shown, your 2100@9-9-9-27|2T|_3.35Ghz setup scores almost the same like mine 1950@8-8-8-24|1T|_3.4Ghz. With the exception of latency being slightly higher.
So as far as the images go, I would say you are set.
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