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Broadwell-E thread - Page 44

post #431 of 7252
Quote:
Originally Posted by xarot View Post

I couldn't run a single full run in LinX 0.6.6 when using adaptive voltage and throttled AVX from 43x to 32x (offset 11x). With offset voltage it works fine though. I guess this is due to adaptive not adding offset unless maximum default multiplier is applied under stress and default voltage being too low for given AVX frequency - while offset adds the desired voltage through whole frequency range? I haven't had much time to play with it yet so I may be mistaken here. smile.gif

With offset voltage, AVX offset does wonders so far. Temps keep well under control now. I am not going to do much stress testing with AVX this time though, but I want it to be "stable if ever needed". Now I have used only RB and P95 with AVX/FMA3 disabled. Very stable so far..

Comes back to what I said earlier. While the AVX offset mechanism works with Offset voltage, you cannot tune the voltage for the non-AVX and AVX ratios at the same time. Only rarely is the voltage level correct for both. Most of the time, one of the voltage levels is higher or lower than it should be. Stability aside, you don't really want to be feeding the CPU more voltage than it needs for either type of workload (moreso the AVX workloads which consume a lot of current).

The issue with Adaptive is that whatever you set will be applied to the AVX and non-AVX workloads.
Edited by Raja@ASUS - 6/15/16 at 1:08am
post #432 of 7252
Getting no TSX reported in an Ubuntu VM.

Raja do you have any idea if TSX is supported? Maybe current motherboard BIOS has it disabled for Broadwell-E CPUs because of the Haswell TSX bug?
post #433 of 7252
I find it odd that Asus never implemented PLX to the Rampage V Extreme or the new Refreshed 10th anniversary board. I want to use my 4x Titan X's with an M.2 drive, now it seems I have to change to the Asus WS just to make that a possibility. Why would they integrated M.2 support on a so called extreme board designed for enthusiasts but have a minor oversight regarding PCI_E lanes. Head scratch moment for me indeed....
 
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post #434 of 7252
Been following the thread for a while now.

I just about to pull the pin on a new x99 build, what's the general consensus on the 6850k over the 5820k for overclocking, is it still worth getting the 6850k?
Will be grabbing a Strix motherboard (no more MSI for me) and a set of 32GB G-Skill Trident 3200Mhz DDR4.
post #435 of 7252
Quote:
Originally Posted by Mhill2029 View Post

I find it odd that Asus never implemented PLX to the Rampage V Extreme or the new Refreshed 10th anniversary board. I want to use my 4x Titan X's with an M.2 drive, now it seems I have to change to the Asus WS just to make that a possibility. Why would they integrated M.2 support on a so called extreme board designed for enthusiasts but have a minor oversight regarding PCI_E lanes. Head scratch moment for me indeed....

PLX adds a bit latency and heat, and maybe no good for extreme OC.

I ran 3x Titan X + Intel P3700 pci-e nvme and samsung sm951 nvme m.2 on Rampage V. This is better for me, because 3-way sli is enough.
Edited by Nizzen - 6/15/16 at 2:09am
post #436 of 7252
Quote:
Originally Posted by Nizzen View Post

PLX adds a bit latency and heat, and maybe no good for extreme OC.

I ran 3x Titan X + Intel P3700 pci-e nvme and samsung sm951 nvme m.2 on Rampage V.

I've gone to 2-Way SLI atm, and after years of doing 4-Way SLI builds, I can see why nobody does it anymore. 2-Way is just amazing! biggrin.gif
 
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post #437 of 7252
Quote:
Originally Posted by Mhill2029 View Post

I find it odd that Asus never implemented PLX to the Rampage V Extreme or the new Refreshed 10th anniversary board. I want to use my 4x Titan X's with an M.2 drive, now it seems I have to change to the Asus WS just to make that a possibility. Why would they integrated M.2 support on a so called extreme board designed for enthusiasts but have a minor oversight regarding PCI_E lanes. Head scratch moment for me indeed....

From my perspective, such features are best implemented on the WS series. The niche within the niche that needs your setup is too limiting for us for sales. More so with NV going the 2-Way SLI route.
post #438 of 7252
Quote:
Originally Posted by Raja@ASUS View Post

From my perspective, such features are best implemented on the WS series. The niche within the niche that needs your setup is too limiting for us for sales. More so with NV going the 2-Way SLI route.

Yeah I guess i'm not exactly the normal user so it would make sense from a sales perspective.

I'm glad Nvidia is taking this stance on 3 and 4 way, my future builds will be cheaper thumb.gif Well assuming 6950X prices don't become the norm on the flagship.
 
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CPUMotherboardGraphicsRAM
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CPUMotherboardGraphicsRAM
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveOptical DriveCooling
2x 256GB OCZ Vertex 4's (RAID-0) 2x 2TB Seagate Barracuda 7200.14 64MB Cache Pioneer BDR-207DBK Blu-ray Writer Corsair H105 (Push/Pull) 
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post #439 of 7252
Quote:
Originally Posted by Raja@ASUS View Post

Comes back to what I said earlier. While the AVX offset mechanism works with Offset voltage, you cannot tune the voltage for the non-AVX and AVX ratios at the same time. Only rarely is the voltage level correct for both. Most of the time, one of the voltage levels is higher or lower than it should be. Stability aside, you don't really want to be feeding the CPU more voltage than it needs for either type of workload (moreso the AVX workloads which consume a lot of current).

The issue with Adaptive is that whatever you set will be applied to the AVX and non-AVX workloads.

Thanks for the reply. I am currently using the voltage I need for RB and non-AVX Prime95 stability and then try to scale down the AVX ratio to be able to run some AVX tests successfully using the same offset. I think it works best this way currently, because AVX probably needs the same voltage at much lower frequency. Just need to figure out the optimal AVX multiplier, although I don't mind that much overvolting the lower AVX frequency a bit if temps are still good under load.
post #440 of 7252
Quote:
Originally Posted by xarot View Post

Thanks for the reply. I am currently using the voltage I need for RB and non-AVX Prime95 stability and then try to scale down the AVX ratio to be able to run some AVX tests successfully using the same offset. I think it works best this way currently, because AVX probably needs the same voltage at much lower frequency. Just need to figure out the optimal AVX multiplier, although I don't mind that much overvolting the lower AVX frequency a bit if temps are still good under load.

The lack of control can render one of the overclocks unstable or eating more voltage and current than it needs.
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