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post #31 of 92 (permalink) Old 09-30-2019, 03:01 AM - Thread Starter
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When it comes to HEDT surely the availability of XEON E5's V__thru___V3 (currently)__will future proof people with X79 & X99 motherboards__OK not totally__due to some single threaded limitations.
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post #32 of 92 (permalink) Old 09-30-2019, 03:05 AM
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Rumor:
https://www.techpowerup.com/258739/a...rx80-and-wrx80

I guess we'll see in November when this chipset and cpu supposedly releases.

1680 V2 4.5GHz 1.33v | G.Skill Trident X 4X4GB 2400MHz | R4BE | Titan Xp + Morpheus II
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post #33 of 92 (permalink) Old 11-15-2019, 02:31 PM
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Fra Z,
Some feedback on the 1680 v2 experience I've had over the years. I'm still using it daily, it still runs any game I throw at it just fine on a 120mhz refress 1440p monitor, I see nothing compelling an upgrade for at least a few more years. There is no paradigm shift on the market unless doing a lot of rendering.

Installed it to replace a 3970X in a Rampage IV Black back in 2015. Ran at 4.4GHZ / 1.31 volts under full droop, about 1.33 volts when at light load for a year or two, then decided to find its' limit.

4.7ghz is stable at 1.388 volts under full droop, 1.408 under light loads.

Only the 100mhz strap is stable.

64 Gigs of ram, though officially the RIVB only supports 32 gigs.

PCIE 3.0 also works if manually enabled, despite official support for only 2.0.

NVME drives can also be enabled manually to boot from NVME.

Temps stay in the low 50s, full custom loop with 11x120 rad space all in push/pull with 22 rad fans and 4 no radiator extraction fans.

Against the 5960X at the same clock speed, the 1680 v2 is incredibly close performance, it comes down to the particular application which comes out ahead. The 5960X will overclock higher most of the time however.

Daily settings in pic, Sig setup was back when I first got it:
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post #34 of 92 (permalink) Old 11-24-2019, 11:25 AM
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Some time ago i asked for an upgrade path from a 3570k @ 4.7GHz.

Found a decent deal on a used Rampage IV Formula and a E5-1680v2 Xeon.
Combined with a 32Gb Corsair Dominator platinum 2400MHz (4x8Gb) I found myself a serious but affordable upgrade.

But now I have been playing with it for some weeks I kinda stumbled uppon an OC wall !!!

E5-1680v2 @ 4.4GHz (100 x44) 1.28v (180%, extreme LLC)
4x8Gb Corsair dominator @ 2133MHz 9-11-11-31 (1.6v) (2400MHz has bandwidth bug)
VCCSA and VTT voltage both at 1.05volts

But whatever I try I cant get the CPU stable at 4.5GHz or higher.
Above settings are ROCK stable => OCCT for 8+ hours, Prime95 8+ Hours, memtest+, gaming etc...
Tryed 45x100 and the 125mhz strap (x36), higher cpu voltage (went till 1.395v witch under loads goes above 1.44v)
I can boot into windows start some benchmarks but get bluescreens while running them, sometimes instant sometimes after 30-40min.

I've been overclocking since the pentium 4 days so I'm deffinitly not new to the game but kinda try'd everthing I could think off.
Any insight to what I could do to get a bit higher, although the system at 4.4GHz rocks and does everything I want it to.


You know how it goes, that overclock bugg and all. Plus +4.5GHz just sounds better.

edit: forgot to mention I'm watercooled, with a 3x140mm (420mm) radiator so temps never go above 65° on OCCT.

Last edited by TwistedBE; 11-24-2019 at 11:32 AM.
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post #35 of 92 (permalink) Old 11-29-2019, 01:32 PM
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Is everyone using a water cooler for oc? I have 212 Evo, would that work for 4.5 GHz oc?

Sent from my Lenovo TB-8703F using Tapatalk
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post #36 of 92 (permalink) Old 11-29-2019, 01:58 PM
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You'll need a top tier air cooler to do 4.5. Think D15, LGM RT, Assassin III, U14S, TS140P, etc. They can draw over 200W when stressing with Realbench, 260W if you play with LinX and other power viruses.

TwistedBE, you're most likely hitting a voltage wall. Same thing happened with my old 4930K. Took more than 1.45v to get to 4.4GHz from 1.32v 4.3Ghz. It just wasn't worth the extra 100MHz. Just in case, here are some things you can try out:

Disable current capabilities limit (necessary for high clocks, especially if you have a leaky chip like mine).
Bump VTT and VCCSA to 1.15v.
My chip likes fixed voltages over offset as well.

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post #37 of 92 (permalink) Old 11-30-2019, 09:34 AM - Thread Starter
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Quote: Originally Posted by zcream View Post
Is everyone using a water cooler for oc? I have 212 Evo, would that work for 4.5 GHz oc?

Sent from my Lenovo TB-8703F using Tapatalk
No, No, No - I've used a Corsair H150i with E5 1680 V2 @ 4.6 Ghz - It's a 360mm RAD and you can see the benchmark score in this thread at the start - temps were 77 C (if I remember) in P95 29.4 stress test --- multi-thread PERF TEST was over 20K points and single thread was circa 2550 - !!!
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post #38 of 92 (permalink) Old 11-30-2019, 09:47 AM - Thread Starter
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Hi,

This was another thread with the 4.6 Ghz OC for E5_1680_V2

https://www.overclock.net/forum/5-in...si-x79-oc.html
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post #39 of 92 (permalink) Old 11-30-2019, 11:27 AM
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I have a sabertooth x79 with 3960x. Would you recommend the e5 1680 V2 ? I can resell the 1680 V2. Ebay prices are 159-200 USD atm

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post #40 of 92 (permalink) Old 12-04-2019, 06:25 AM
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Quote: Originally Posted by zcream View Post
I have a sabertooth x79 with 3960x. Would you recommend the e5 1680 V2 ? I can resell the 1680 V2. Ebay prices are 159-200 USD atm

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Board has no problem with the 1680.
If the 2 extra cores help then yes.
Generally speaking the Ivy's out perform clock to clock to the Sandy's, so yes.
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