• We've upgraded our forums. Please post any issues/requests in this thread.

Timing rules

Joined
Jun 16, 2009
Messages
5,123 (1.65/day)
Likes
989
Location
North of Germany
System Name Heatbitch / The Dark Tower / Custom Acer
Processor AMD Phenom 2 X4 960T @ 4200mhz 1,44v,3130NB /Q9550 3.4ghz 1.20v/ X2 260 1.42v @3.6
Motherboard Asus M4A89GTD PRO / Asus Rampage Formula/Foxconn A7DA-S 3.0
Cooling Heatkiller 3.0 LT,Laing DDC+,Octakaideca-Rad /EK SP,Tt 400L, B.Ice XT2/Xiggy Black Knight
Memory 4x2gb Transcend 2400 CL10 1.65v: 1600 7-8-7-24-40 1.65 /Dominator 1066 2GB/Ripjaws 2000 CL9 4GB
Video Card(s) 6970, soon to be WCed/ 4870x2 HK Full Cover WC´d / 2xGeforce 8800GT HyperSLI
Storage 128gb Vertex 3, 32GB Ultradrive GX2, 320GB+500GB+2x1TB F1 /160gb Maxtor,500gb F1/ 160GB WD
Display(s) LG Flatron 23" W2353V /Benq 19" FP93E-S/TFT 17"
Case Thermaltake Shark /Superflower SF-860B/Acer m-ATX Tower
Audio Device(s) Realtek Onboard Sound, on all of them
Power Supply Corsair TX850/ OCZ Modxstream-Pro 600W/ MS-Tech 750w
Software XP 32bit Professional+ Win7 64Bit Ultimate
Benchmark Scores 3DMark Vantage: P21385 3DM11: P5920
#26
From what i was able to gather, most professional overclockers that know the secrets of ram, tend not to tell their tricks regarding that, because it seems to be one of the hardest things to get right
;)
 
Joined
Dec 6, 2005
Messages
9,811 (2.23/day)
Likes
3,800
Location
Manchester, NH
System Name Working on it ;)
Processor I7-4790K
Motherboard MSI Z97
Cooling Be Quiet Pure Rock Air
Memory 16GB 4x4 G.Skill CAS9 2133 Sniper
Video Card(s) Intel IGP (Dedicated GPU TBD)
Storage WD 320 / 500KS / 500KS / 640KS / 640LS / 640LS / 640LS / 1TBFAEX and a NAS with 2x2Tb WD Black
Display(s) 24" DELL 2405FPW
Case Rosewill Challenger
Audio Device(s) Onboard + HD HDMI
Power Supply Corsair HX750 (love it)
Mouse Logitech G5
Software Win 7 Pro
#27
Nice thread, subb'd.

I suspect, like everything... there's a tradeoff between secondary timings and speed (and stability) + the interelationships with other timings.

If there is a general theory of relativity for DRAM timings, I'd like to see it... after reading this, I doubt it's linear like x+x+x+x, there's probably some x^(y-z) stuff going on.
 
Joined
Jan 21, 2013
Messages
3,800 (2.12/day)
Likes
1,320
System Name Out of the game..
Benchmark Scores d1nky@hwbot.org
#28
theres a couple guys on this site that seem to masters of ram, wonder if theyll chip in.


and i doubt its a secret or something to be hidden, unless its used in competition.


ram manufacturers must have a formula like sasqui said above. even a laymans guide would be good.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.88/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#29
You're not going to see any amazing benefits from changing secondary or tertiary timings, even if you know exactly what you're doing.

You're looking for an easy answer where these is none. I'm just saying.
I see almost 25% more memory performance from tertiary timing adjustments at lower and at higher speeds, depending on the board used. Does it affect overall performance? marginally.


Not all boards use the exact same labels for timings, either, so that complicates things.

As to formulas for memory timings, there is not one for general use. finding out what each IC likes is easy, simply go to the IC OEM's website, download the whitepapers, and decipher the mess inside. It's not really that hard, for me.

Like Samsung DDR3 ICs...when I got them, I read the provided info, and found that there is a relation between CAS Latency, and tWCL. Nobody was talking about tWCL is any way, on any forum I could find. Nothing in extreme sites, nothing in normal sites...so I posted some info in my review on what I found during testing.


Today, you'll find countless mentions of tWCL on extreme forums, looking at efficiency tweaks or pushing a stick higher. Did I point that setting out? Maybe..but probably not. If you took the time to adjust each individual setting, you would have discovered the same just as easy.


theres a couple guys on this site that seem to masters of ram, wonder if theyll chip in.

So...yous wants dat timings guide, eh? Imma goona tell you, it doesn't exist, and that it changes with every platform, too. Intel SNB and IVB like some settings, Haswell, completely different. AMD, yet another set of settings to worry about.


I should start giving courses, with high entry fees. :roll:


Dumo is a hidden Guru on this stuff. That guy..his ram...OMG...:respect:
 
Joined
Jan 21, 2013
Messages
3,800 (2.12/day)
Likes
1,320
System Name Out of the game..
Benchmark Scores d1nky@hwbot.org
#30
So...yous wants dat timings guide, eh? Imma goona tell you, it doesn't exist, and that it changes with every platform, too. Intel SNB and IVB like some settings, Haswell, completely different. AMD, yet another set of settings to worry about
wasnt look for the answer, just direction.

seems a bit alien going in and lowering numbers thinking they have an effect when actually they could be doing nothing or worse.

i like what you said about the manufacturers schematics.

guess its in the art of tweaking and finding out for ourselves.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.88/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#31
guess its in the art of tweaking and finding out for ourselves.
Yes, very much so. I could give you general guidelines, as I have for years for many members here. From general user to forum moderators, there are many people here running timings I gave them.

Like MXPhenom...his sticks wouldn't work with his board at all until I told him what timings to change...and rather than changing things to make them looser...or increasing voltage, I had him TIGHTEN secondaries. Just three settings, set tighter, and everything worked perfectly.


I don't think I'm all that bright, honestly, so if I can figure this out ,anyone can, but as you said, it does involve devoting some time and attention to it. I have literally 1000's of pages of notes from memory clocking over the past 10 years or so. Memory is what I like to play with. I got into reviewing boards, since some boards offer better options than others, and what better way to get the boards I wanted to overclock my memory with?

I've recently started to focus more on memory, and less on boards. I have about 20 Z87 boards for review, and then I might completely switch to memory only, while going to school in the fall. Memory just offers me too much fun. I'd rather have one excellent board and 5 or 6 good memory kits to play with, than all these motherboards. :p
 
Joined
May 22, 2010
Messages
2,516 (0.91/day)
Likes
680
Location
Canada
System Name m1dg3t | DeathBox | HairPi 3
Processor 3570k @ 4.0 1.15v BIOS | q9550 @ 3.77 1.325v BIOS
Motherboard Asrock z77e iTX | p5q Dlx 2301 BIOS
Cooling Custom Water | D-14 & HR-03gt | Passive HSF
Memory Samsung MV-3V4G3D 4g x 2 @ 1866 1.35v | OcZ RpR 2g x 4 @ 1067 2.2v
Video Card(s) MSi 7950 tf3 @1000 / 1350 | Asus 5870 V2 @ 900 / 1275
Storage Adata sx900 256Gb / WD 2500 HHTZ | WD 1001 FALS x 2
Display(s) BenQ gw2750hm | 46" Sharp Quatron
Case BitFenix Prodigy - m0dd3d | Antec Fusion Remote MAX
Audio Device(s) Onboard Toslink > Yamaha HTR 6290 | Xonar HDAV1.3 > Yamaha DSP z7
Power Supply Ocz mXp700w | Ocz zx850w | Cannakit 5v 2.5a
Mouse Logitech G700s | Logitech G9x - Cable Repaired
Keyboard TT Meka G1 - Black w Cherry Blacks| Logitech G11
Software Win7 Home | Xp sp3 & Vista ultimate | Raspbian
Benchmark Scores Epeen!! Who needs epeen??
#32
Dumo = RAM God! :respect:

I hate messing with RAM, frustrating as all hell to max out :cry:
 

de.das.dude

Pro Indian Modder
Joined
Jun 13, 2010
Messages
8,202 (2.99/day)
Likes
2,390
Location
Pune
System Name la de da... | Samsung NP355V5C-S05IN
Processor FX 8320 | AMD A8-4500
Motherboard ASRock 990FX Extreme 4 | Samsung something something
Cooling CM Hyper 212 EVO push:pull+ 1 panaflow 113CFM + 2 x 120mm NZXTs | Coolermaster Notepal
Memory 2x4GB DDR3 Corsair Vengeance 1600MHz CL9 | Samsunng 4GB + 2GB DDR3 1600MHz
Video Card(s) AMD 7790 GHZ edition! | 7670M + 7640G
Storage 1TB WD10EZEX | W.D 500GB Green AADS | Samsung 1TB
Display(s) dell S2240l 1080p IPS 21.5" | Samsung antiglare 15.6"
Case NZXT Guardian 921RB(@home) and Antec ASK4000B U3(Current)
Audio Device(s) Realtek ALC892 with THX True Studio | Realtek something
Power Supply Corsair GS600 | 90W Brick, 6 cell 48000mAh battery
Mouse Logitech G400, GOD TIER MOUSE!! LOGitech F310 gamepad!
Keyboard Logitech K200
Software Windows 8.1 x64 | Windows 8.1 x64
Benchmark Scores real men do bench presses not bench marks.
#33
wow, so much math. i just try the timings for the next lowest clock. if it doesnt work, i try upping one by one :p
 
Joined
Apr 4, 2008
Messages
4,659 (1.31/day)
Likes
1,009
System Name Obelisc
Processor i7 3770k @ 4.8 GHz
Motherboard Asus P8Z77-V
Cooling H110
Memory 16GB(4x4) @ 2400 MHz 9-11-11-31
Video Card(s) GTX 780 Ti
Storage 850 EVO 1TB, 2x 5TB Toshiba
Case T81
Audio Device(s) X-Fi Titanium HD
Power Supply EVGA 850 T2 80+ TITANIUM
Software Win10 64bit
#34
I feel like there must be some catch to this tRFC thing. I dropped it from 171 to 88 and it's appears to pass memtest. Should I just take it to the floor or can it damage something?

@cadaveca
I changed my tWCL down a notch after seeing your samsung review mention that. Even though I doubt I have Samsung chips it seems whenever I look up what timings to try I end up in a thread about those chips and what works for them seems to work for my sticks.
 
Last edited:
Joined
Mar 10, 2010
Messages
4,988 (1.76/day)
Likes
1,553
Location
Manchester uk
System Name Quad GT evo V
Processor FX8350 @ 4.8ghz1.525c NB2.64ghz Ht2.84ghz
Motherboard Gigabyte 990X Gaming
Cooling 360EK extreme 360Tt rad all push/pull, cpu,NB/Vrm blocks all EK
Memory Corsair vengeance 32Gb @1333 cas9
Video Card(s) Rx vega 64 waterblockedEK + Rx580 waterblockedEK
Storage samsung 840(250), WD 1Tb+2Tb +3Tbgrn 1tb hybrid
Display(s) Samsung uea28"850R 4k freesync, samsung 40" 1080p
Case Custom(modded) thermaltake Kandalf
Audio Device(s) Xfi creative 7.1 on board ,Yamaha dts av setup
Power Supply corsair 1000Rmx
Mouse CM optane
Keyboard CM optane
Software Win 10 Pro
Benchmark Scores 15.69K best overall sandra so far
#35
I personally tweek for hours and generally fall upon best settings to be honest I think I do ok but on my amd rig that's taking some time as is the heat tradeoff in cpu max clock v memory , how high would you all push the voltage on 1.5v ram reasonably well cooled.

Oh and thanks I had not thought of actually looking up the ic info doh.

GDAMIT now I wanna crack my memory open.
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.88/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#36
@cadaveca
I changed my tWCL down a notch after seeing your samsung review mention that. Even though I doubt I have Samsung chips it seems whenever I look up what timings to try I end up in a thread about those chips and what works for them seems to work for my sticks.
Yeah, it seemed really odd to me that this crucial timing was something not looked at or at least talked about until after I posted that review. Obviously the OEMs knew, or they wouldn't have included the option as adjustable.

and yeah, the same rules, in general, apply as you scale clocks up, it's when you start to hit the limits that what you have to tweak changes, or if the IC density changes, like going from 2 GB sticks to 4 GB to 8 GB requires you adjust things as well.
 
Joined
Jan 21, 2013
Messages
3,800 (2.12/day)
Likes
1,320
System Name Out of the game..
Benchmark Scores d1nky@hwbot.org
#37
can we keep this thread alive for RAM timings and alike. turn into some informational help each other out kind of thread.?! and i like posting links that i find good reads!


well i was thinking last night, and if hypothetically i manufactured some ram from scratch how would i create timings profiles for such. id guess most manufacturers have templates etc.

but after testing the ram for its maximum voltage handling/speeds etc. they get binned based on the tests.

so if your ram is X speed, from that the mb/s (transfer rate) is worked out and that sets out a formula to work the timings.

now the timings act like a set of instructions for delays and precharging cells in order for data to be transferred, based on the X speed/timings.

what ive learnt so far.... ive seen something for RAM profiling and it looks like physics... maybe DRAM physics LOL

http://www.hardwaresecrets.com/article/Understanding-RAM-Timings/26/3

http://www.hardwaresecrets.com/arti...o-Know-About-DDR-DDR2-and-DDR3-Memories/167/5
 
Last edited:
Joined
Apr 4, 2008
Messages
4,659 (1.31/day)
Likes
1,009
System Name Obelisc
Processor i7 3770k @ 4.8 GHz
Motherboard Asus P8Z77-V
Cooling H110
Memory 16GB(4x4) @ 2400 MHz 9-11-11-31
Video Card(s) GTX 780 Ti
Storage 850 EVO 1TB, 2x 5TB Toshiba
Case T81
Audio Device(s) X-Fi Titanium HD
Power Supply EVGA 850 T2 80+ TITANIUM
Software Win10 64bit
#38
I tried tRAS at half the formula recommend speed thinking it might not cause any stability issues if it's running at twice the speed instead of something irregular. I was at 9-10-10-28, tried 9-10-10-14 and it worked fine, but I can report zero performance benefit. So I'd say only bother adjusting tRAS for the sake of stability at higher overclocks.
 
Joined
Jan 21, 2013
Messages
3,800 (2.12/day)
Likes
1,320
System Name Out of the game..
Benchmark Scores d1nky@hwbot.org
#39
i havent been paying much attention lately, but if i get my ram to 2550mhz with slightly looser timings my performance is a lot better.... and benching is phenenenenenemonal, was able to hit 10k physics 3dmark firestrike, but stock speed/timings no chance.


after i finished setting a waterloop i want to learn about this and hopefully come with some sort of strategy.

i messaged gskill asking if theres things i should and shouldnt do, they replied saying its mainly in the major timings and didnt help lol
 

Aquinus

Resident Wat-man
Joined
Jan 28, 2012
Messages
10,404 (4.84/day)
Likes
5,483
Location
Concord, NH
System Name Kratos
Processor Intel Core i7 3930k @ 4.2Ghz
Motherboard ASUS P9X79 Deluxe
Cooling Zalman CPNS9900MAX 130mm
Memory G.Skill DDR3-2133, 16gb (4x4gb) @ 9-11-10-28-108-1T 1.65v
Video Card(s) MSI AMD Radeon R9 390 GAMING 8GB @ PCI-E 3.0
Storage 2x120Gb SATA3 Corsair Force GT Raid-0, 4x1Tb RAID-5, 1x500GB
Display(s) 1x LG 27UD69P (4k), 2x Dell S2340M (1080p)
Case Antec 1200
Audio Device(s) Onboard Realtek® ALC898 8-Channel High Definition Audio
Power Supply Seasonic 1000-watt 80 PLUS Platinum
Mouse Logitech G602
Keyboard Rosewill RK-9100
Software Ubuntu 17.10
Benchmark Scores Benchmarks aren't everything.
#40
I tried tRAS at half the formula recommend speed thinking it might not cause any stability issues if it's running at twice the speed instead of something irregular. I was at 9-10-10-28, tried 9-10-10-14 and it worked fine, but I can report zero performance benefit. So I'd say only bother adjusting tRAS for the sake of stability at higher overclocks.
I would imagine that tRAS would improve the amount of latency to read data out of a DRAM page that the IMC isn't currently on. It's the amount of time (in clocks) to change which DRAM row (page) is being selected. This only impacts data that is accessed from that page for the first time, subsequent reads from the same page don't get impacted by tRAS.

So even though your bandwidth might be unchanged, your latency may have dropped as a result but only during random reads from different DRAM pages.
 
Joined
Apr 4, 2008
Messages
4,659 (1.31/day)
Likes
1,009
System Name Obelisc
Processor i7 3770k @ 4.8 GHz
Motherboard Asus P8Z77-V
Cooling H110
Memory 16GB(4x4) @ 2400 MHz 9-11-11-31
Video Card(s) GTX 780 Ti
Storage 850 EVO 1TB, 2x 5TB Toshiba
Case T81
Audio Device(s) X-Fi Titanium HD
Power Supply EVGA 850 T2 80+ TITANIUM
Software Win10 64bit
#41
I reran the tests again just for you. Multiple runs of Aida, maxxmem, and super pi all say nada. If I ran 32m all day long and averaged it out I could see something but I'd have to file that under too small to bother. Maybe it can help someone somewhere at some point but not me.

So far mhz, CL, tRCD, tRP, and tRFC are all I've found that increase scores on a large enough scale for me to confirm.
 
Joined
Jan 21, 2013
Messages
3,800 (2.12/day)
Likes
1,320
System Name Out of the game..
Benchmark Scores d1nky@hwbot.org
#42
i see the biggest improvements from upping my cpunb and with a bit more northbridge voltage.

changing speeds or timings help with the latency and slightly improve read/write/copy


does anyone know if its ok to copy the XMP profile for AMD chips? otherwise i have no settings to copy lol
 
Joined
Mar 10, 2010
Messages
4,988 (1.76/day)
Likes
1,553
Location
Manchester uk
System Name Quad GT evo V
Processor FX8350 @ 4.8ghz1.525c NB2.64ghz Ht2.84ghz
Motherboard Gigabyte 990X Gaming
Cooling 360EK extreme 360Tt rad all push/pull, cpu,NB/Vrm blocks all EK
Memory Corsair vengeance 32Gb @1333 cas9
Video Card(s) Rx vega 64 waterblockedEK + Rx580 waterblockedEK
Storage samsung 840(250), WD 1Tb+2Tb +3Tbgrn 1tb hybrid
Display(s) Samsung uea28"850R 4k freesync, samsung 40" 1080p
Case Custom(modded) thermaltake Kandalf
Audio Device(s) Xfi creative 7.1 on board ,Yamaha dts av setup
Power Supply corsair 1000Rmx
Mouse CM optane
Keyboard CM optane
Software Win 10 Pro
Benchmark Scores 15.69K best overall sandra so far
#43
i see the biggest improvements from upping my cpunb and with a bit more northbridge voltage.

changing speeds or timings help with the latency and slightly improve read/write/copy


does anyone know if its ok to copy the XMP profile for AMD chips? otherwise i have no settings to copy lol
Im using mine to get to 2145 so I doubt it can hurt plus following this thread ive messed with a fair few but I am not finding any better timings at this speed I did at 1333 , 1600 and 1800-2000 but not near my memories top frequency , mushkin got them pretty close.

Argh phones r crap.
 
Last edited:

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,385 (10.17/day)
Likes
18,027
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#44
does anyone know if its ok to copy the XMP profile for AMD chips? otherwise i have no settings to copy lol
Well... It works for some things but not for others. It's a good place to start though.

Just to add a couple cents to this thread I've found that sometimes one or two sub-timings can be the difference between a running and stable system and a system that won't boot at all.
 
Joined
Mar 10, 2010
Messages
4,988 (1.76/day)
Likes
1,553
Location
Manchester uk
System Name Quad GT evo V
Processor FX8350 @ 4.8ghz1.525c NB2.64ghz Ht2.84ghz
Motherboard Gigabyte 990X Gaming
Cooling 360EK extreme 360Tt rad all push/pull, cpu,NB/Vrm blocks all EK
Memory Corsair vengeance 32Gb @1333 cas9
Video Card(s) Rx vega 64 waterblockedEK + Rx580 waterblockedEK
Storage samsung 840(250), WD 1Tb+2Tb +3Tbgrn 1tb hybrid
Display(s) Samsung uea28"850R 4k freesync, samsung 40" 1080p
Case Custom(modded) thermaltake Kandalf
Audio Device(s) Xfi creative 7.1 on board ,Yamaha dts av setup
Power Supply corsair 1000Rmx
Mouse CM optane
Keyboard CM optane
Software Win 10 Pro
Benchmark Scores 15.69K best overall sandra so far
#45
i havent been paying much attention lately, but if i get my ram to 2550mhz with slightly looser timings my performance is a lot better.... and benching is phenenenenenemonal, was able to hit 10k physics 3dmark firestrike, but stock speed/timings no chance.


after i finished setting a waterloop i want to learn about this and hopefully come with some sort of strategy.

i messaged gskill asking if theres things i should and shouldnt do, they replied saying its mainly in the major timings and didnt help lol
What's your northbridge and ht frequency at that memory speed please and how's your memory cooled.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,385 (10.17/day)
Likes
18,027
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#46
Leave HT frequency alone! It does nothing!!!

I found with Bulldozer and later CPU's anything over 2400mhz NB requires a lot more voltage if it's going to be stable at all.
 
Joined
Mar 10, 2010
Messages
4,988 (1.76/day)
Likes
1,553
Location
Manchester uk
System Name Quad GT evo V
Processor FX8350 @ 4.8ghz1.525c NB2.64ghz Ht2.84ghz
Motherboard Gigabyte 990X Gaming
Cooling 360EK extreme 360Tt rad all push/pull, cpu,NB/Vrm blocks all EK
Memory Corsair vengeance 32Gb @1333 cas9
Video Card(s) Rx vega 64 waterblockedEK + Rx580 waterblockedEK
Storage samsung 840(250), WD 1Tb+2Tb +3Tbgrn 1tb hybrid
Display(s) Samsung uea28"850R 4k freesync, samsung 40" 1080p
Case Custom(modded) thermaltake Kandalf
Audio Device(s) Xfi creative 7.1 on board ,Yamaha dts av setup
Power Supply corsair 1000Rmx
Mouse CM optane
Keyboard CM optane
Software Win 10 Pro
Benchmark Scores 15.69K best overall sandra so far
#47
Leave HT frequency alone! It does nothing!!!

I found with Bulldozer and later CPU's anything over 2400mhz NB requires a lot more voltage if it's going to be stable at all.
I know what your saying but due to other component speeds I can now run it higher or lower then spec but rarely on spec so I asked out of interest no need to shout :p
Plus as you well know pushing every clock you can as high as you can is a bit addictive but fraught with a new issue every try so high memory speeds might need lower nb speeds forsstability which is actually why I asked that and nb speed affects memory a lot.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,385 (10.17/day)
Likes
18,027
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#48
It was just excitement!!! THIS IS SHOUTING!!! :laugh:
 
Joined
Apr 4, 2008
Messages
4,659 (1.31/day)
Likes
1,009
System Name Obelisc
Processor i7 3770k @ 4.8 GHz
Motherboard Asus P8Z77-V
Cooling H110
Memory 16GB(4x4) @ 2400 MHz 9-11-11-31
Video Card(s) GTX 780 Ti
Storage 850 EVO 1TB, 2x 5TB Toshiba
Case T81
Audio Device(s) X-Fi Titanium HD
Power Supply EVGA 850 T2 80+ TITANIUM
Software Win10 64bit
#49
I got a consistent 0.002% performance boost by raising tREF from 8320 to 10400. Yes I had to go back and forth a lot to confirm that one. I picked that number because the highest I saw in reviews was 9360 which is a 1040 step so I just ran with that. I'm reasonably confident that's the end of the road for tweaks with my system at least.
 
Last edited:
Joined
Dec 5, 2006
Messages
7,698 (1.91/day)
Likes
747
Processor i7-5820K
Motherboard Gigabyte X99-UD4
Cooling Corsair H100i
Memory 16GB Crucial DDR4-2400
Video Card(s) Asus Strix GTX 1070
Storage 240GB HyperX 3k, 500GB Samsung 850EVO, 2x WD Black 640gb, WD Black 1TB, Seagate 10TB
Display(s) 2x BenQ 24" 1920x1080
Case BitFenix Ghost
Audio Device(s) Focusrite Saffire PRO 14 -> DBX DriveRack PA+ -> Mackie MR8 and MR10 / Corsair Vengeance 2100
Power Supply Corsair RM1000i
Mouse Logitech G500s
Keyboard Logitech G110
Software Windows 10 x64 Pro
#50
I hope some of you have spent this much time clocking your gpu/cpu :p

I haven't spent a serious amount of time playing with memory timings since getting my first i7.
But now this makes me want to again, blast you benchmarkers... It's an addiction gotta push for the top!