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post #2631 of 7890
Quote:
Originally Posted by intelchief View Post

When i was buidling my PC, my idea was to make 2 way or event three way SLI with GTX670. After GTX970 premiere i was thinking aboout this card. But, prices are pretty high for now. What is more important that maybe i will be able to play on my gtx on high in GTA V - this is the game i've been waiting for;)

Right know i'm still thinking about CPU frequency.
Option A
4321mhz with 1.329 V and 1440mhz 8-8-8-24 1T
Option B
4200mhz with 1.305 V and 1750 mhz 9-9-9-27 1T (maybe even lower voltage, i will be checking this on the weekend)

According to benchmarks "A" is faster but needs more voltage on the core. and I actually like my CPU's;)

What is the Uncore delta between the two? I've been able to stabilize my Uncore, knock on wood, at 3.5GHz @ 1.28v. It's a noticeable difference with my FPS on RO2: Rising Storm, 1080 all in-game video settings maxed. I have a higher minimum fps with a stronger max fps. I was at 3.9GHz Core, and ~ 2.5GHz Uncore before.
     
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post #2632 of 7890
Quote:
Originally Posted by Kana-Maru View Post

biggrin.gif Definitely avoid that. Great price, but it's to good to be true. Turns out it was.

I did get another reply testifying that the condition of the board is in excellent condition and everything works. I told him that I needed him to state that incase something is wrong, so Paypal can protect me as a buyer. He offered it at 135$ best price. Hmm. This could be a good investment. Only thing is tearing down the current rig just to test out this board.. thinking.gif
     
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post #2633 of 7890
Quote:
Originally Posted by OCmember View Post

What is the Uncore delta between the two? I've been able to stabilize my Uncore, knock on wood, at 3.5GHz @ 1.28v. It's a noticeable difference with my FPS on RO2: Rising Storm, 1080 all in-game video settings maxed. I have a higher minimum fps with a stronger max fps. I was at 3.9GHz Core, and ~ 2.5GHz Uncore before.

Option A
CPU: 4321mhz with 1.329 V and 1.275 VTT (180mhz x 24)
uncore: 3600mhz
MEMORY: 1440mhz 8-8-8-24 1T with 1.54V\


Option B
CPU: 4200mhz with 1.305 V and VTT 1.275 (will try to work with volatges on the weekend)
uncore 3500mhz (for now, i will try to increase this value on the weekend)
Memory 1750 mhz 9-9-9-27 1T 1.63 V
post #2634 of 7890
Quote:
Originally Posted by intelchief View Post

Option A
CPU: 4321mhz with 1.329 V and 1.275 VTT (180mhz x 24)
uncore: 3600mhz
MEMORY: 1440mhz 8-8-8-24 1T with 1.54V\


Option B
CPU: 4200mhz with 1.305 V and VTT 1.275 (will try to work with volatges on the weekend)
uncore 3500mhz (for now, i will try to increase this value on the weekend)
Memory 1750 mhz 9-9-9-27 1T 1.63 V

From what I hear that is a good range to be in. I've heard somewhere that 4GHz Uncore is either impossible or damaging ? don't remember. I wouldn't trust the OS readings for the voltages, as I've said before my readings are way off on some things. My board has terminals to test with a multi-meter and the VTT reads 1.356 in OS and on the meter it reads 1.28v That's too big of a difference to mess around with. Vcore is pretty much on but my point is play is safe. 4.2GHz is fantastic @ 1.3v Core. What is your Uncore voltage?
Edited by OCmember - 1/15/15 at 12:15pm
     
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post #2635 of 7890
.
Quote:
Originally Posted by OCmember View Post

From what I hear that is a good range to be in. I've heard somewhere that 4GHz is either impossible or damaging ? don't remember. I wouldn't trust the OS readings for the voltages, as I've said before my readings are way off on some things. My board has terminals to test with a multi-meter and the VTT reads 1.356 in OS and on the meter it reads 1.28v That's too big of a difference to mess around with. Vcore is pretty much on but my point is play is safe. 4.2GHz is fantastic @ 1.3v Core. What is your Uncore voltage?

On my SR2 i also have terminals but sadly i dont have tools;/

Anyway my uncore voltages are 1.275 V in both cases(on evga motherboard is called CPU VTT voltage;)). But as i said i will work with "option b " on the weekend. maybe i will be able to lower vcore to 1.29 and increase uncore. frequency (my cpu VTT cant be lower than 1.275;/)

i've read that it's dangerous if uncore voltage is higher than 1.3V and memory frequency to uncroe frequency ratio is higher than 1.5-1.8. But if you're bellow 1.3 uncore voltage it's ok
post #2636 of 7890
Quote:
Originally Posted by intelchief View Post

.
On my SR2 i also have terminals but sadly i dont have tools;/

Anyway my uncore voltages are 1.275 V in both cases(on evga motherboard is called CPU VTT voltage;)). But as i said i will work with "option b " on the weekend. maybe i will be able to lower vcore to 1.29 and increase uncore. frequency (my cpu VTT cant be lower than 1.275;/)

i've read that it's dangerous if uncore voltage is higher than 1.3V and memory frequency to uncroe frequency ratio is higher than 1.5-1.8. But if you're bellow 1.3 uncore voltage it's ok

Hmm. I also have an EVGA board. 760 A1 Rev.1.0 Wonder why the CPU VTT can't be any lower? Do you have the latest bios? My default VTT is 1.20v, and you should get a multi meter. If you can afford that board you should be able to afford a 20$ multi meter from Home Depot, or Lowes or any hardware store.
     
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post #2637 of 7890
well in my case it's probably because of two CPU's which are conncecting using QPI path. But it's my guessing;) Actually i have three bioses. i'm using the latest one but also in a free time i'm testing others(older ones)

you mean something like this?
http://allegro.pl/miernik-lcd-multimetr-z-temperatura-dt9208a-i4927016880.html
post #2638 of 7890
Quote:
Originally Posted by intelchief View Post

well in my case it's probably because of two CPU's which are conncecting using QPI path. But it's my guessing;) Actually i have three bioses. i'm using the latest one but also in a free time i'm testing others(older ones)

you mean something like this?
http://allegro.pl/miernik-lcd-multimetr-z-temperatura-dt9208a-i4927016880.html

Yeah, something like that.
     
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post #2639 of 7890
So i started messing up with the clocks, and it easily went up to 4ghz at 167x24 1,275v at 63° celsius (20 ambient temp), LLC disable (so vdroop enable i guess) and HT disable (since i use it just for gaming).
After 2 hours of IBT no errors so id say it's likely stable.

Problem is that i cant go any higher without making a big jump in voltage. Tried 4.1 ghz with 171x24 and ibt crashed after 30 secs at both 1,275v, 1,2875v and 1,30v.
Since i didn't want to go much higher than that with voltages i wonder if im not making some mistakes.

Everything else is pretty much at the minimum manual default, both QPI and uncore are at their lowest multi (since i just wanted to find the highest stable cpu clock), and every other voltage is at its minimum value, so PLL should be 1,80, ioh 1,10 and so on. My ram is rated 1600 cas9, and atm is way below that spec.

Any suggestion on how to avoid just a big voltage jump for 100mhz?
 
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post #2640 of 7890
That's pretty much what I saw too. I think it might be a product of the architecture of these chips.
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