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post #3601 of 4005 (permalink) Old 02-06-2019, 01:13 AM
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Quote: Originally Posted by Northfear View Post
Hmm.. what is the "correct" way to stress test OC with 5775c?
Difference between stable AIDA64 CPU/FPU/Cache test (with AVX enabled) and Prime95 (with AVX too) is ~.06v and a little housefire. Is something wrong with AVX on this CPU or is it a normal behavior in general?
I mean it's a bit strange (at least to me) to have a bootable windows with [email protected], but totally fail the test with [email protected]
There is no correct way. There is no wrong way. Stress test it based on what you intend to do with your computer. If you do heavy math calculating like programming and compiling programs, then test with Prime95. If you do a lot of video editing, download a youtube video in 4K and down-sample it to 1080p with handbrake and test the CPU That way video converting. Or try a heavy conversion with adobe premiere. If you do gaming, then run 3dmark 10 times.
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post #3602 of 4005 (permalink) Old 02-06-2019, 07:02 AM
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Quote: Originally Posted by Northfear View Post
Hmm.. what is the "correct" way to stress test OC with 5775c?
Difference between stable AIDA64 CPU/FPU/Cache test (with AVX enabled) and Prime95 (with AVX too) is ~.06v and a little housefire. Is something wrong with AVX on this CPU or is it a normal behavior in general?
I mean it's a bit strange (at least to me) to have a bootable windows with [email protected], but totally fail the test with [email protected]
That core oc info doesn't make sense so maybe your instability is coming from another source. Cache instability can be sneaky. Maybe try reducing that oc until you get the core behavior nailed down.
Edit: You could also try a bclk of 99 and see if that helps.

L5
(17 items)
Lea2
(11 items)
L7
(11 items)
CPU
5775c
Motherboard
Maximus VII Hero
GPU
Aorus 1080ti Waterforce
RAM
16 Gb Gskill Trident @ 2400,cas10,1.575v
RAM
8 Gb Gskill Trident @ 2400,cas10,1.575v
Hard Drive
1Tb Team ssd
Hard Drive
seagate barracuda 3T
Hard Drive
Optane 900p 480G OS
Optical Drive
Asus BW-16D1HT
Power Supply
EVGA Supernova 1300 G2
Cooling
Cooler Master MasterLiquid Pro 120 (cpu)
Cooling
2 140mm case fans, 2 120mm
Case
Fractal Design R4 (no window)
Operating System
W10 64 pro
Monitor
panasonic TC-58AX800U
Audio
Focal Elear, Nova 40, 598se, HE4xx, DT990pro w b.boost earpads
Audio
SoundbasterX AE-5, onboard
CPU
4770k
Motherboard
Asus Z87 Deluxe
GPU
Fury Nitro
RAM
8Gb klevv urbane 2133
Hard Drive
ROG Raidr 240Gb pcie
Hard Drive
1Tb WD blue
Power Supply
Pc Power&Cooling silencer Mk2 950w
Cooling
Deepcool Lucifer V2
Case
DIYPC P48-W
Operating System
W10 64 pro
Monitor
40"tv
CPU
4980hq
Motherboard
Asus H81T/CSM
RAM
8Gb 1600 samsung
Hard Drive
Samsung 850 evo 120gb
Power Supply
Skyvast 90w brick for hp pavilion something
Cooling
SilverStone Tek Super Slim
Case
SilverStone Tek PT13B
Operating System
W10 64 pro
Monitor
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post #3603 of 4005 (permalink) Old 02-06-2019, 12:17 PM
Are you sure about that?
 
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Quote: Originally Posted by rluker5 View Post
That core oc info doesn't make sense so maybe your instability is coming from another source. Cache instability can be sneaky. Maybe try reducing that oc until you get the core behavior nailed down.
Edit: You could also try a bclk of 99 and see if that helps.
Yeah It sounds really odd to me as well, something else has to be the culprit in that scenario. Try RAM, Cache, or if you have iGPU enabled and a dedicated GPU disable the iGPU. I know on mine I’ll get a hard system lockup if I try to use my iGPU with my dGPU.

Motherboards I’ve killed: Sabertooth Z77, AsRock G41-C R2.0, MSI Z97 Gaming 5, ASUS Z97A, EVGA 790i SLI Ultra.
Main Gaming Rig
(14 items)
Ivy Box
(6 items)
CPU
Intel i7-5775C (Broadwell)
Motherboard
ASUS Z97-E/USB 3.1
GPU
EVGA GeForce GTX 1080 Superclocked
RAM
Corsair Vengeance Pro DDR3 2400MHz (32GB)
Hard Drive
Samsung 850 Evo SATA III SSD 120GB
Hard Drive
Seagate Barracuda 7200RPM HDD 2TB
Power Supply
Corsair RM850 850W 80+ Gold
Cooling
Corsair H100i v2
Case
Corsair Carbide Clear 400C
Operating System
Windows 10 Pro x64 1903
Monitor
19” LCD 1440x900 Dynex Monitor
Keyboard
Logitech G213 Prodigy
Mouse
Logitech G502 Hero Gaming Mouse
Other
ASUS PCE-AC56 PCI-E Wireless Express Adapter
CPU
Intel i5-3470T 2.9GHz LGA 1155 CPU
Motherboard
FOXCONN H67S ITX motherboard (LGA 1155)
GPU
EVGA GTX 660 Superclocked
RAM
Undecided yet
Case
Fractal Design Node 202
Operating System
Windows Vista Ultimate Service Pack 2 x64
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post #3604 of 4005 (permalink) Old 02-06-2019, 02:07 PM
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Quote: Originally Posted by rluker5 View Post
That core oc info doesn't make sense so maybe your instability is coming from another source. Cache instability can be sneaky. Maybe try reducing that oc until you get the core behavior nailed down.
Edit: You could also try a bclk of 99 and see if that helps.
Yeah.. Seems like a weak IMC so far. Increasing SA/IO voltage allowed me to lower CPU voltage (RAM wasn't even OC's. Just default 1866). Will try to investigate further here.
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post #3605 of 4005 (permalink) Old 02-06-2019, 03:12 PM
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Quote: Originally Posted by BlownGUNSLINGER View Post
I do not play BF1, however you should have less draw calls given less texels/pixels. However again since you play at a different gameplay aspect ratio of 21:9 from 16:9 you actually probably have more resident geometry and corresponding draw calls, that is contratry to the previous statement. As the game is mostly horizontal as is the landscape and it's features than verticle. Also given the lower total resolution the pixel clock might be better able to grab and render frames from the DX11 2thread system in such a fashion that it performs exponentially better at freeing the software render from the game engine to the hardware render on the physical GPU. Hence you will have a higher framerate, so I suggest double checking framerates from one to the other if you can. Other facets of the game will increase systematically therefore utilizing more of the CPU core(s). BF1 is a multi-threaded engine and all aspects work in unison, to collectively deliver a cohesive experience more often that not increasing CPU usage w/ increase being linear in fashion. Most constraining will then be server side, from there on after and will curtail FPS gains. I ask how is the experience I know Gsync/Freesync do wonders. If you cannot OC RAM or core further, a recommendation would be to turn off HardwarePrefetcher and possibly even Adjacent-cache line prefetch. Both affect and ramp up potential cache misses exponentially causing stutters, etc. CPU usage will be higher w/ more in the core itself w/ more ability to utilize SMT/HT floating point executions, all the while having appropriate set aside room in the cache for proper retrieval of subsequent/consequent data. As a closing statement I will say that Skylake-X does have 1mb of L2 instead of 256kb of L2 cache. Same core except for 4x the amount of cache on skylake X. As I do not play BF1, I do hope this can give some introspect.
Thanks a lot for your answer!!!!
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post #3606 of 4005 (permalink) Old 02-07-2019, 01:22 AM
Hmmmmmmm
 
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Hi all, recently got a 5675c, still on the lookout for a 5775c but don't really have too much hope... (I'll post a validation later today when I'm home)

Some questions I have on OCing:

I've been toying around with the clocks and a quick and dirty OC (just Vccin and Vcore) that I got was [email protected] stable, tried a bit at [email protected] but that consistently crashed under load. None of these overclocks seem temperature limited at all, the chip never gets over 60c under XTU or Cinebench runs with my nh-u14s and a relatively conservative fan curve. (My delidded 4790k is basically uncoolable beyond 4.6)

I was wondering what other voltages I should be playing with?
What are the safe limits for Vcore and cache (and other voltages)?
In XTU the cache and core voltages seem to be locked together, is that normal? (Can't seem to find anything about this)
Anything specific I should know about getting the most out of the L4 cache?
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post #3607 of 4005 (permalink) Old 02-07-2019, 02:34 PM
Are you sure about that?
 
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Finally getting ready to push my 5775C a bit harder, just bought a GTX 1080 to upgrade from my 290X so now I get to actually have my CPU do some work. Should be here in a week or so and I am already so excited I can’t stand it.

Motherboards I’ve killed: Sabertooth Z77, AsRock G41-C R2.0, MSI Z97 Gaming 5, ASUS Z97A, EVGA 790i SLI Ultra.
Main Gaming Rig
(14 items)
Ivy Box
(6 items)
CPU
Intel i7-5775C (Broadwell)
Motherboard
ASUS Z97-E/USB 3.1
GPU
EVGA GeForce GTX 1080 Superclocked
RAM
Corsair Vengeance Pro DDR3 2400MHz (32GB)
Hard Drive
Samsung 850 Evo SATA III SSD 120GB
Hard Drive
Seagate Barracuda 7200RPM HDD 2TB
Power Supply
Corsair RM850 850W 80+ Gold
Cooling
Corsair H100i v2
Case
Corsair Carbide Clear 400C
Operating System
Windows 10 Pro x64 1903
Monitor
19” LCD 1440x900 Dynex Monitor
Keyboard
Logitech G213 Prodigy
Mouse
Logitech G502 Hero Gaming Mouse
Other
ASUS PCE-AC56 PCI-E Wireless Express Adapter
CPU
Intel i5-3470T 2.9GHz LGA 1155 CPU
Motherboard
FOXCONN H67S ITX motherboard (LGA 1155)
GPU
EVGA GTX 660 Superclocked
RAM
Undecided yet
Case
Fractal Design Node 202
Operating System
Windows Vista Ultimate Service Pack 2 x64
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post #3608 of 4005 (permalink) Old 02-07-2019, 08:48 PM
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Quote: Originally Posted by GorbazTheDragon View Post
Hi all, recently got a 5675c, still on the lookout for a 5775c but don't really have too much hope... (I'll post a validation later today when I'm home)

Some questions I have on OCing:

I've been toying around with the clocks and a quick and dirty OC (just Vccin and Vcore) that I got was [email protected] stable, tried a bit at [email protected] but that consistently crashed under load. None of these overclocks seem temperature limited at all, the chip never gets over 60c under XTU or Cinebench runs with my nh-u14s and a relatively conservative fan curve. (My delidded 4790k is basically uncoolable beyond 4.6)

I was wondering what other voltages I should be playing with?
What are the safe limits for Vcore and cache (and other voltages)?
In XTU the cache and core voltages seem to be locked together, is that normal? (Can't seem to find anything about this)
Anything specific I should know about getting the most out of the L4 cache?
1.4 core and 1.3 cache seem fine from those that tried around here. I personally don't like to use more than 1.34v core for gaming due to needing louder fans and I suspect I have to clean and replace my liquid metal more often. But I have done benches at 1.425 core and run 1.3v cache all of the time and don't mind doing 1.325. But a few on this thread seem to use 1.4v core very frequently.
It mostly depends on if it is worth throwing a lot of mv at that last 100mhz to you. Although if I really wanted max performace in a particular use or game, I would go for it and dial back the rest of the time.

And later versions of XTU link the core and cache voltages because Skylake. 6.2.0.27 and earlier don't. I just checked and softpedia has a 6.2.0.24 download that should work.
And keep an eye on your bios settings if you get a crash from xtu. Some of my values on my mobo get zeroed and it leads to bothersome, and sometimes misleading instability. I save a profile in bios and if I find xtu has messed with it due to a crash, I reload it.

And the biggest gain from L4 is just using it for your cpu by not using the integrated gpu. You can check if your cpu is using it if userbenchmark has augmented multicore read speeds for your ram(in excess of your ram's capabilities) and a memory latency ladder that stays around 30ns (or less if you oc your edram) until it hits 64MB. Like this one: https://www.userbenchmark.com/UserRun/14294617

Have fun playing with that thing.

L5
(17 items)
Lea2
(11 items)
L7
(11 items)
CPU
5775c
Motherboard
Maximus VII Hero
GPU
Aorus 1080ti Waterforce
RAM
16 Gb Gskill Trident @ 2400,cas10,1.575v
RAM
8 Gb Gskill Trident @ 2400,cas10,1.575v
Hard Drive
1Tb Team ssd
Hard Drive
seagate barracuda 3T
Hard Drive
Optane 900p 480G OS
Optical Drive
Asus BW-16D1HT
Power Supply
EVGA Supernova 1300 G2
Cooling
Cooler Master MasterLiquid Pro 120 (cpu)
Cooling
2 140mm case fans, 2 120mm
Case
Fractal Design R4 (no window)
Operating System
W10 64 pro
Monitor
panasonic TC-58AX800U
Audio
Focal Elear, Nova 40, 598se, HE4xx, DT990pro w b.boost earpads
Audio
SoundbasterX AE-5, onboard
CPU
4770k
Motherboard
Asus Z87 Deluxe
GPU
Fury Nitro
RAM
8Gb klevv urbane 2133
Hard Drive
ROG Raidr 240Gb pcie
Hard Drive
1Tb WD blue
Power Supply
Pc Power&Cooling silencer Mk2 950w
Cooling
Deepcool Lucifer V2
Case
DIYPC P48-W
Operating System
W10 64 pro
Monitor
40"tv
CPU
4980hq
Motherboard
Asus H81T/CSM
RAM
8Gb 1600 samsung
Hard Drive
Samsung 850 evo 120gb
Power Supply
Skyvast 90w brick for hp pavilion something
Cooling
SilverStone Tek Super Slim
Case
SilverStone Tek PT13B
Operating System
W10 64 pro
Monitor
24" samsung 1080p
Keyboard
Logitech K400+
Other
Intel wifi ac card and noname antennas
▲ hide details ▲
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post #3609 of 4005 (permalink) Old 02-07-2019, 09:29 PM
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Quote: Originally Posted by TwilightRavens View Post
Finally getting ready to push my 5775C a bit harder, just bought a GTX 1080 to upgrade from my 290X so now I get to actually have my CPU do some work. Should be here in a week or so and I am already so excited I can’t stand it.
Congratulations! There will certainly be less compromises Your old card will still look good but the big jump should definitely be fun.

L5
(17 items)
Lea2
(11 items)
L7
(11 items)
CPU
5775c
Motherboard
Maximus VII Hero
GPU
Aorus 1080ti Waterforce
RAM
16 Gb Gskill Trident @ 2400,cas10,1.575v
RAM
8 Gb Gskill Trident @ 2400,cas10,1.575v
Hard Drive
1Tb Team ssd
Hard Drive
seagate barracuda 3T
Hard Drive
Optane 900p 480G OS
Optical Drive
Asus BW-16D1HT
Power Supply
EVGA Supernova 1300 G2
Cooling
Cooler Master MasterLiquid Pro 120 (cpu)
Cooling
2 140mm case fans, 2 120mm
Case
Fractal Design R4 (no window)
Operating System
W10 64 pro
Monitor
panasonic TC-58AX800U
Audio
Focal Elear, Nova 40, 598se, HE4xx, DT990pro w b.boost earpads
Audio
SoundbasterX AE-5, onboard
CPU
4770k
Motherboard
Asus Z87 Deluxe
GPU
Fury Nitro
RAM
8Gb klevv urbane 2133
Hard Drive
ROG Raidr 240Gb pcie
Hard Drive
1Tb WD blue
Power Supply
Pc Power&Cooling silencer Mk2 950w
Cooling
Deepcool Lucifer V2
Case
DIYPC P48-W
Operating System
W10 64 pro
Monitor
40"tv
CPU
4980hq
Motherboard
Asus H81T/CSM
RAM
8Gb 1600 samsung
Hard Drive
Samsung 850 evo 120gb
Power Supply
Skyvast 90w brick for hp pavilion something
Cooling
SilverStone Tek Super Slim
Case
SilverStone Tek PT13B
Operating System
W10 64 pro
Monitor
24" samsung 1080p
Keyboard
Logitech K400+
Other
Intel wifi ac card and noname antennas
▲ hide details ▲
rluker5 is offline  
post #3610 of 4005 (permalink) Old 02-08-2019, 01:23 PM
Are you sure about that?
 
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Quote: Originally Posted by rluker5 View Post
Congratulations! There will certainly be less compromises Your old card will still look good but the big jump should definitely be fun.
Yeah I am going to throw the 290X into the 790i board I have at the very least, it has served me well and deserves to live on.

Motherboards I’ve killed: Sabertooth Z77, AsRock G41-C R2.0, MSI Z97 Gaming 5, ASUS Z97A, EVGA 790i SLI Ultra.
Main Gaming Rig
(14 items)
Ivy Box
(6 items)
CPU
Intel i7-5775C (Broadwell)
Motherboard
ASUS Z97-E/USB 3.1
GPU
EVGA GeForce GTX 1080 Superclocked
RAM
Corsair Vengeance Pro DDR3 2400MHz (32GB)
Hard Drive
Samsung 850 Evo SATA III SSD 120GB
Hard Drive
Seagate Barracuda 7200RPM HDD 2TB
Power Supply
Corsair RM850 850W 80+ Gold
Cooling
Corsair H100i v2
Case
Corsair Carbide Clear 400C
Operating System
Windows 10 Pro x64 1903
Monitor
19” LCD 1440x900 Dynex Monitor
Keyboard
Logitech G213 Prodigy
Mouse
Logitech G502 Hero Gaming Mouse
Other
ASUS PCE-AC56 PCI-E Wireless Express Adapter
CPU
Intel i5-3470T 2.9GHz LGA 1155 CPU
Motherboard
FOXCONN H67S ITX motherboard (LGA 1155)
GPU
EVGA GTX 660 Superclocked
RAM
Undecided yet
Case
Fractal Design Node 202
Operating System
Windows Vista Ultimate Service Pack 2 x64
▲ hide details ▲
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