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2500k - Ocing help needed

noremac258
By noremac258
in CPUs, Motherboards, and Memory
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So I'm a bit late in the game, but I'm finally going to overclock. At 4ghz 1.25v ibt deemed it unstable when I should have more than enough room for a higher clock speed at my given voltage. Should I increase my voltage yet again or just settle for a lower clock speed? I'm also running prime95 overnight at the settings above.

Other things to note

-I don't want to break the 1.3v barrier

-my room is freezing

-I have no intent of going past 4.2ghz

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Core temps?

I actually couldn't underclock my 5 year old GPU to make it as slow as a next-gen console.

#pcmasterraceproblems

~Slick

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Silicon lottery. No guarantee of anything. Put it at 1.3v and try to go as high as you can.

PC: 4770K @ 4.0 GHz --- Maximus VI Hero --- 8 GB 2133 MHz Corsair Vengeance Pro --- EVGA 780 TI Classified @ 1300 MHz --- Samsung Evo 250 GB --- Corsair RM 750 --- Corsair Carbide Air 540 --- CM Storm Rapid-I (MX Blues with PMK Evergreen Keycaps) --- Windows XP --- Razer Naga --- Custom Loop Parts: 380I, EKWB 780 Classy Waterblock and Backplate, 240mm and 360mm XT45, Swiftech MCP655, EKWB multi option reservoir, Mayhems Pastel Red, Primochill Primoflex Advanced Clear Tubing, 5 SP 120 Quiet Editions --- Mobile: Surface Pro 3 (i5 128gb) with JD40 (MX Clears) and Microsoft Sculpt Mouse --- Galaxy S6

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Core temps?

What is cooling it?

Hyper 212 and some where in the high 50s low 60s
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@noremac258

 

sandy bridge mobos need some tweaking to allow good overclocking. just raising

the multiplier and voltage isn't for older platforms. what motherboard?

 

CPU Multiplier Setting set to 40 - This is our CPU frequency.

Since the default BClock is 100MHz; 100x40=4GHz. This is the option to configure

CPU Frequency.

 

VDroop/LLC set to Without VDroop or maximum LLC - This keeps CPU voltage

stable and reduce sagging under load.

 

Internal PLL Voltage Override set to Enable - This is a critical option that improves

system stability when running over 40X CPU multiplier.

 

CPU VCore set to 1.300V - May take less, but this is a starting point.

 

DIMM Voltage set to Varies - Set your DIMM voltage to manufacturer recommended

spec.

 

DIMM Timings/Speed set to Varies - Set your DIMM speed/frequency to 1600 and

manually alter the timings from manufacturer recommended spec.

 

EIST set to Disable - This is Intel Speedstep Technology.

 

C1E Support set to Disable - This is a powersaving feature.

 

CPU C3 Report also set to Disable

 

DO NOT DISABLE TURBO MODE! This essentially allows your CPU to OC at all.

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Silicon lottery. No guarantee of anything. Put it at 1.3v and try to go as high as you can.

My p8p67-m doesn't have a setting to directly place at a given voltage so I just have to kinda play around until I get in the ball park.

I'm also not sure how much longer I'm going to stay with this CPU, I'm not sure how the degradation of 1.3v would work.

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@noremac258

 

sandy bridge mobos need some tweaking to allow good overclocking. just raising

the multiplier and voltage isn't for older platforms. what motherboard?

 

CPU Multiplier Setting set to 40 - This is our CPU frequency.

Since the default BClock is 100MHz; 100x40=4GHz. This is the option to configure

CPU Frequency.

 

VDroop/LLC set to Without VDroop or maximum LLC - This keeps CPU voltage

stable and reduce sagging under load.

 

Internal PLL Voltage Override set to Enable - This is a critical option that improves

system stability when running over 40X CPU multiplier.

 

CPU VCore set to 1.300V - May take less, but this is a starting point.

 

DIMM Voltage set to Varies - Set your DIMM voltage to manufacturer recommended

spec.

 

DIMM Timings/Speed set to Varies - Set your DIMM speed/frequency to 1600 and

manually alter the timings from manufacturer recommended spec.

 

EIST set to Disable - This is Intel Speedstep Technology.

 

C1E Support set to Disable - This is a powersaving feature.

 

CPU C3 Report also set to Disable

 

DO NOT DISABLE TURBO MODE! This essentially allows your CPU to OC at all.

@noremac258

 

sandy bridge mobos need some tweaking to allow good overclocking. just raising

the multiplier and voltage isn't for older platforms. what motherboard?

 

CPU Multiplier Setting set to 40 - This is our CPU frequency.

Since the default BClock is 100MHz; 100x40=4GHz. This is the option to configure

CPU Frequency.

 

VDroop/LLC set to Without VDroop or maximum LLC - This keeps CPU voltage

stable and reduce sagging under load.

 

Internal PLL Voltage Override set to Enable - This is a critical option that improves

system stability when running over 40X CPU multiplier.

 

CPU VCore set to 1.300V - May take less, but this is a starting point.

 

DIMM Voltage set to Varies - Set your DIMM voltage to manufacturer recommended

spec.

 

DIMM Timings/Speed set to Varies - Set your DIMM speed/frequency to 1600 and

manually alter the timings from manufacturer recommended spec.

 

EIST set to Disable - This is Intel Speedstep Technology.

 

C1E Support set to Disable - This is a powersaving feature.

 

CPU C3 Report also set to Disable

 

DO NOT DISABLE TURBO MODE! This essentially allows your CPU to OC at all.

I have everything enabled there, but llc only has enable or disable for me so I assume you mean to enable. Any notable software I should be using for testing stability?

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So I'm a bit late in the game, but I'm finally going to overclock. At 4ghz 1.25v ibt deemed it unstable when I should have more than enough room for a higher clock speed at my given voltage. Should I increase my voltage yet again or just settle for a lower clock speed? I'm also running prime95 overnight at the settings above.

Other things to note

-I don't want to break the 1.3v barrier

-my room is freezing

-I have no intent of going past 4.2ghz

its fine to go over 1.3v on sandy. its haswell and dc that you don't want to go over 1.3v. as long as its under 80c up to 1.4v is fine. i run mine at 1.4v.

Rig Specs:

AMD Threadripper 5990WX@4.8Ghz

Asus Zenith III Extreme

Asrock OC Formula 7970XTX Quadfire

G.Skill Ripheartout X OC 7000Mhz C28 DDR5 4X16GB  

Super Flower Power Leadex 2000W Psu's X2

Harrynowl's 775/771 OC and mod guide: http://linustechtips.com/main/topic/232325-lga775-core2duo-core2quad-overclocking-guide/ http://linustechtips.com/main/topic/365998-mod-lga771-to-lga775-cpu-modification-tutorial/

ProKoN haswell/DC OC guide: http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

 

"desperate for just a bit more money to watercool, the titan x would be thankful" Carter -2016

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its fine to go over 1.3v on sandy. its haswell and dc that you don't want to go over 1.3v. as long as its under 80c up to 1.4v is fine. i run mine at 1.4v.

How long have you been running yours for?

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I have everything enabled there, but llc only has enable or disable for me so I assume you mean to enable. Any notable software I should be using for testing stability?

 

i used OCCT because it had reliable temperature/voltage monitoring built in. or any of

the current stressors like XTU, P95, AIDA64.

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DO NOT DISABLE TURBO MODE! This essentially allows your CPU to OC at all.

I have turbo boost disabled on my non-K 2600 yet it still allows me to overclock.

CPU: i7 2600 @ 4.2GHz  COOLING: NZXT Kraken X31 RAM: 4x2GB Corsair XMS3 @ 1600MHz MOBO: Gigabyte Z68-UD3-XP GPU: XFX R9 280X Double Dissipation SSD #1: 120GB OCZ Vertex 2  SSD #2: 240GB Corsair Force 3 HDD #1: 1TB Seagate Barracuda 7200RPM PSU: Silverstone Strider Plus 600W CASE: NZXT H230
CPU: Intel Core 2 Quad Q9550 @ 2.83GHz COOLING: Cooler Master Eclipse RAM: 4x1GB Corsair XMS2 @ 800MHz MOBO: XFX nForce 780i 3-Way SLi GPU: 2x ASUS GTX 560 DirectCU in SLi HDD #1: 1TB Seagate Barracuda 7200RPM PSU: TBA CASE: Antec 300
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my 2700k is still stroking. babied on 1.35v 4.6GHz with 62° H100i silent fans.

got a replacement MIVE-Z and looking to dust off the old water blocks and do

it up after the delided Ivy CPU debacle (dropped PCB into CPU socket major

pin deforms). i think mine did 1.43/1.45 5.0GHZ (HT off) on custom loop.

I have turbo boost disabled on my non-K 2600 yet it still allows me to overclock.

didn't know mobo mannie, so the "bland" option is to do the tubo overclock.

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Update: running prime95 1.27v 4.3. My i5 doesn't really like 4.4 that much, as tested by osst, hopefully once I wake up everything goes as planned and I can leave it at that... For now.

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How long have you been running yours for?

a year in october. people run them under water on 1.5v for 2-3years, they usually die after that. 

Rig Specs:

AMD Threadripper 5990WX@4.8Ghz

Asus Zenith III Extreme

Asrock OC Formula 7970XTX Quadfire

G.Skill Ripheartout X OC 7000Mhz C28 DDR5 4X16GB  

Super Flower Power Leadex 2000W Psu's X2

Harrynowl's 775/771 OC and mod guide: http://linustechtips.com/main/topic/232325-lga775-core2duo-core2quad-overclocking-guide/ http://linustechtips.com/main/topic/365998-mod-lga771-to-lga775-cpu-modification-tutorial/

ProKoN haswell/DC OC guide: http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

 

"desperate for just a bit more money to watercool, the titan x would be thankful" Carter -2016

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a year in october. people run them under water on 1.5v for 2-3years, they usually die after that.

See I still want to possibly use mine for another 1-2 years before I upgrade. Although I'd never sell the chip, am I the only one with a sentimental value to the chip?

 

 

Update: I ran P95... kinda sketchy though. Core 1 completed 375 tests, core 3 completed 412, core 4 completed 413. But... core 2 has an error after only 22 tests. Now I assume that means something is wrong with the actual core? If I'm not mistaken I can set each individual cores to a respective multiplier.  So I might down clock the second core. Oh and P95 ran for 10 hours and 13 minutes.

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See I still want to possibly use mine for another 1-2 years before I upgrade. Although I'd never sell the chip, am I the only one with a sentimental value to the chip?

 

 

Update: I ran P95... kinda sketchy though. Core 1 completed 375 tests, core 3 completed 412, core 4 completed 413. But... core 2 has an error after only 22 tests. Now I assume that means something is wrong with the actual core? If I'm not mistaken I can set each individual cores to a respective multiplier.  So I might down clock the second core. Oh and P95 ran for 10 hours and 13 minutes.

i won't worry to much about prime. i never use it.

Rig Specs:

AMD Threadripper 5990WX@4.8Ghz

Asus Zenith III Extreme

Asrock OC Formula 7970XTX Quadfire

G.Skill Ripheartout X OC 7000Mhz C28 DDR5 4X16GB  

Super Flower Power Leadex 2000W Psu's X2

Harrynowl's 775/771 OC and mod guide: http://linustechtips.com/main/topic/232325-lga775-core2duo-core2quad-overclocking-guide/ http://linustechtips.com/main/topic/365998-mod-lga771-to-lga775-cpu-modification-tutorial/

ProKoN haswell/DC OC guide: http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

 

"desperate for just a bit more money to watercool, the titan x would be thankful" Carter -2016

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