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Haswell Overclocking Guides / Results
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Re: Haswell Overclocking Guides / Results
Originally posted by Acebmxer View PostNot sure if I fully understand your question, but yes setting 42x cpu multi will be better over stock. I am not sure if you can set cpu multi to 42x with out touching any voltages. It should do it but the bios may over volt if voltages are left on auto as posed to manually setting voltages.
You will always get more performance from a cpu then you will get from memory. If I test ram at 2800mhz vs 2133mhz the gflop difference is probably about 2-4 gflops different. yet raising from 4.2ghz to 4.5ghz will give you something like 10 or so gflops. These are just rough estimates not true numbers.Originally posted by wazza300 View Postany overclock will be a performance boost over stock
I see, so just doing this will already raise my voltages (and therefore heat) if left at Auto. What particular voltages should I watch for, and at what max values should I look at w/o jeopardizing the system?
Also, it's currently set to 42 and running fine (but not sure of the max acceptable voltages yet). Perhaps to advance a little more, could I still possibly increase the CPU ratio a little further without touching the other options? What could I watch for if I do this? Thanks.Last edited by sherpa25; 09-01-2013, 09:21 PM.Gigabyte Z87X-UD3H-CF (BIOS: F10)
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Re: Haswell Overclocking Guides / Results
^If you set up CPU multi x42.....Vcore on Auto is a way so high......my set to 1.325V and less then 1.200V is need to be stable.
Edit:
To be precise, Vcore 1.1850V with memory on XMP (2933) is enough to pass latest LinX 0.6.5....
all other Auto.....
Last edited by stasio; 09-02-2013, 12:57 AM.
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Re: Haswell Overclocking Guides / Results
Ok, thanks statio. My auto VCore is at 1.3V when CPU ratio is at 42. How do I test, in what increments do I decrease VCore until I determine stability?Gigabyte Z87X-UD3H-CF (BIOS: F10)
Intel i5-4670k (@4.2)
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CM 212X CPU Cooler
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Re: Haswell Overclocking Guides / Results
Testing w/ LinX now. Why is it BIOS suggests to set Uncore to 'same or higher' value as Core Ratio, but in screenshots I see here of Tweaklauncher have Uncore less than VCore? (ex. statio shows vcore=42/uncore=40, and boondocks in the previous page shows vcore=45/uncore=39).Gigabyte Z87X-UD3H-CF (BIOS: F10)
Intel i5-4670k (@4.2)
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Seagate ST2000DL003-9VT166 2TB HDD
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Lite-On iHES112 BD-ROM
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XFX 650W CE
Cougar Volant Case
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Re: Haswell Overclocking Guides / Results
Originally posted by sherpa25 View PostTesting w/ LinX now. Why is it BIOS suggests to set Uncore to 'same or higher' value as Core Ratio, but in screenshots I see here of Tweaklauncher have Uncore less than VCore? (ex. statio shows vcore=42/uncore=40, and boondocks in the previous page shows vcore=45/uncore=39).
Yeah I dont know why bios says to keep uncore = to Cpu speed. This is fine a lower overclocks but at higher speeds it gets hard to keep uncore even with cpu speed. My cpu uncore maxes out around 42x and do higher but need alot more voltage to get there and performance does not scale with uncore as it does with cpu speed.Last edited by Acebmxer; 09-02-2013, 10:45 AM.Main Rig
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Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
HiS ATI HD 6950
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Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
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Re: Haswell Overclocking Guides / Results
Like Ace says...what were they thinking? LOL. But he explained pretty well, I think.
For my x45 overclock, a 39x uncore requires about 1.10v ring. Setting higher doesn't do anything for me unless I pile on more voltage....at least in benchmarks.
But now that I'm delidded I'll be trying higher OC and will see how the uncore scales for my cpu....Maximus 8 Hero/6700K @ 4.8/4x4GB LPX @ 3200 15-17-17-36 CR1
Case Labs SM8 w/dual pedestals / Custom water w/ acrylic pipe / Light box
PowerColor 390Xw/EK block / Samsung 840 Pro 256GBx2 RAID 0 / 128GBx1 SSD's | 3 HDD's / DVD burner
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Re: Haswell Overclocking Guides / Results
Originally posted by Acebmxer View PostWhen Uncore is untuched = left at default 35x or 34x they should be considered Auto. If you want to disable Auto set uncore to 1 less or more then default, so if your default uncore is 35x (4770k) set to 34x or 36x. Default/Auto will overclock to 40x depending on cpu multi.
Yeah I dont know why bios says to keep uncore = to Cpu speed. This is fine a lower overclocks but at higher speeds it gets hard to keep uncore even with cpu speed. My cpu uncore maxes out around 42x and do higher but need alot more voltage to get there and performance does not scale with uncore as it does with cpu speed.Originally posted by boondocks View PostLike Ace says...what were they thinking? LOL. But he explained pretty well, I think.
For my x45 overclock, a 39x uncore requires about 1.10v ring. Setting higher doesn't do anything for me unless I pile on more voltage....at least in benchmarks.
But now that I'm delidded I'll be trying higher OC and will see how the uncore scales for my cpu....
So with VRing set to Auto, I can set it to +1 at 35.
Latest issue now (LinX 0.6.5) is temp, as mine reached 95+C just at 42x Core (Vcore=1.185) and 35x Uncore ratio. Guess my air (212X coolmaster) isn't doing much good :( What's the peak temp I should consider? Any difference if I set Problem Size and Memory to 'All' or set them to what specific values?
Any need to set Loadline calib to any other than Auto (i.e. Medium)?Last edited by sherpa25; 09-02-2013, 11:27 AM.Gigabyte Z87X-UD3H-CF (BIOS: F10)
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Re: Haswell Overclocking Guides / Results
Yes when testing with LinX you should have memory set to all to fully stress the system. I recommend 5-10 runs for short stability test and 15-20 runs for max stability.
As for max temp I would try to keep core temp to around 80c-90c. If you have not delidded your cpu and your on air and at 4.2ghz then your doing pretty good. If you feel up to the challenge and delid the cpu and use Liquid pro on the core that will drop temps around 15c-30c right there, but haswell really needs to be watercooled.
I have been playing with LLC with the Z87-OC board and while I do not see a drop in vcore use lower LLC, I did see a drop in stability. I recommend setting LLC to extreme and all other PWM phase setting to extreme.
Vcore = Cpu speed/Cpu multi
Vring = Uncore. possibly bclk?
VSA = qpi/vtt = memory overclocking
VCCIN = primary input voltage can be left on auto
All other voltage can be left on auto until you really want to try and push the system.
Max voltages
Vcore max on air keep eye on core temp. You will max out core temp before vcore on AIR. On water Keep under 1.5v also keep eye on core temps
vring = I want to say around 1.25v-1.30v
VSA = 0.40v I believe
Please correct me if I am wrong about max voltages.Last edited by Acebmxer; 09-02-2013, 12:35 PM.Main Rig
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Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
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Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
HiS ATI HD 6950
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Re: Haswell Overclocking Guides / Results
Thanks Ace!
Longer testing w/ the same, current settings: just at 42x Core (Vcore=1.185) and 35x Uncore ratio, and LLC=Medium, temps reached 100C already! The rest stock at Auto.
What do I adjust to lower my temps? I really just want to have more performance than stock (even a little, as long as stable) with my current setup and have no plans to move from air to water.Gigabyte Z87X-UD3H-CF (BIOS: F10)
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Plextor PX-128M5P 128Gb SSD (Win7-x64)
Seagate ST2000DL003-9VT166 2TB HDD
WDC WD5000AAKX 500GB HDD
Lite-On iHES112 BD-ROM
LG Flatron IPS234V
XFX 650W CE
Cougar Volant Case
Logitech DFGT/G27
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Re: Haswell Overclocking Guides / Results
You can try your same settings but test with this LinX 0.64.zip. This uses AVX instead of AVX2 which will not stress the cpu as hard which will be cooler and will require less volts.
AVX my cpu needs 1.210v for 4.5ghz and 1.330v for 4.7ghz
AVX2 my cpu needs 1.330v for 4.5ghz and tried up to 1.400v for 4.6ghz (bsod in under 2 min)
So I give up on AVX2 and nothing I use will stress my system as bad as that does.Main Rig
Gigabyte z87x-OC
Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
HiS ATI HD 6950
Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port2
Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
CORSAIR CMPSU-850TX PSU
Swiftech MCP655-B Pump
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Swiftech Mcres Micro Rev 2 Reservoir
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Re: Haswell Overclocking Guides / Results
Here is the voltage chart Sin0822 posted at OCN:
For the whole article by Sin on overclocking Gigabyte/Haswell:
The Gigabyte Z87/Haswell Overclocking(OC) Guide
Remember that any changes from stock are at your own risk! Also, Intel sells cpu replacement insurance for only $25, not a bad deal.
Home PageMaximus 8 Hero/6700K @ 4.8/4x4GB LPX @ 3200 15-17-17-36 CR1
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PowerColor 390Xw/EK block / Samsung 840 Pro 256GBx2 RAID 0 / 128GBx1 SSD's | 3 HDD's / DVD burner
Dual Aquaero 5 Pro controllers for pumps & fans / FC9 for led's only 2xD5 pwm w/Bitspower tops - MCP35x2 - 3x480 rads/1x240 rad/AP15 fans / EK supremcy
Seasonic Platinum 1000w custom fabbed/sleeved psu wiring by me
Wifes: Z77X-UD5H / 3770K w/c with Raystorm copper block & 2 Rads/ Kingston HyperX RAM / Switch 810 case/ PowerColor AX7950 w/EK block
HTPC: Z68 Pro3 M / 2105
SOLD:Z97X-UD5H /4790K/F11b mod BIOS/[email protected] 4x4GB Kingston Genesis KHX24C11X3K4 2400 RAM 11-13-13-30
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Re: Haswell Overclocking Guides / Results
Originally posted by boondocks View PostHere is the voltage chart Sin0822 posted at OCN:
For the whole article by Sin on overclocking Gigabyte/Haswell:
The Gigabyte Z87/Haswell Overclocking(OC) Guide
Remember that any changes from stock are at your own risk! Also, Intel sells cpu replacement insurance for only $25, not a bad deal.
Home Page
Just remember warranty and insurance are only good if cpu has not been delidded.Main Rig
Gigabyte z87x-OC
Haswell i7 4770k - 4.7Ghz @ 1.330v LLC Extreme (L310B492)
G.Skill F3-1700CL9D-8GBXM DDR3-2133mhz 9-11-10-28 1.65v @ 2800mhz 12-14-14-35 1.7v
Samsung Green 8GB 2x4GB MV-3V4G3D/US DDR3 1.3v 30nn @ 2200Mhz 11-11-11-32 1.60v
Sapphire ATI HD 7970 3GB clocked 1200MHz @ 1.181v.
HiS ATI HD 6950
Samsung 840 Pro 256GB SSD (boot Drive) on Intel sata3 controller port0
Corsair Force GT 120 GB Sata3 SSD on Intel sata3 controller port1
Samsung 320GB HD322GJ 7200 RPM 16M cache on Intel sata3 controller port2
Sony Optiarc DVD-RW AD-7240S on Intel sata3 controller port5
CORSAIR CMPSU-850TX PSU
Swiftech MCP655-B Pump
EK Supremacy Cpu Block
Swiftech Mcres Micro Rev 2 Reservoir
Black Ice GTX Xtreme 360 Radiator
BSOD ERROR CODES
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