Overclock.net › Forums › Intel › Intel CPUs › i5 2500k can't get 4.6GHz overclock?
New Posts  All Forums:Forum Nav:

i5 2500k can't get 4.6GHz overclock?

post #1 of 12
Thread Starter 
This is not a temperature issue. I can run 4.5GHz 24/7 and keep it cool and stable.

1.3410 load at 4.5GHz. But I can bump the voltage to 1.35 and 4.6GHz doesn't happen.
It crashes immediately. And not a BSOD. The system locks up, and I have to kill it and reset the CMOS.

What do I need to do? What's the issue?
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
post #2 of 12
moar volts!

but really OP, you can add more voltage if you closely monitor your temps, i would be comfortable trying 1.45v. not every 2500k can get to 4.5 at all, let alone at 1.2v as some do, it may take 1.4v or more. just depends on your chip. also, do you have 4 dimms of ram? that may make it harder. usually these sb unlocked chips are good at OC, but there is always the group that just can't do what others can.
post #3 of 12
Thread Starter 
Quote:
Originally Posted by driftkidd2323 View Post

moar volts!
but really OP, you can add more voltage if you closely monitor your temps, i would be comfortable trying 1.45v. not every 2500k can get to 4.5 at all, let alone at 1.2v as some do, it may take 1.4v or more. just depends on your chip. also, do you have 4 dimms of ram? that may make it harder. usually these sb unlocked chips are good at OC, but there is always the group that just can't do what others can.

only 2 dimms. It even won't get stable if the voltage is on auto.. 1.4v isn't working. There's something else going on..... mad.gif
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
post #4 of 12
Quote:
Originally Posted by White Fire View Post

Quote:
Originally Posted by driftkidd2323 View Post

moar volts!
but really OP, you can add more voltage if you closely monitor your temps, i would be comfortable trying 1.45v. not every 2500k can get to 4.5 at all, let alone at 1.2v as some do, it may take 1.4v or more. just depends on your chip. also, do you have 4 dimms of ram? that may make it harder. usually these sb unlocked chips are good at OC, but there is always the group that just can't do what others can.

only 2 dimms. It even won't get stable if the voltage is on auto.. 1.4v isn't working. There's something else going on..... mad.gif

well, not necessarily. you may have gotten a bunked chip and can't get over 4.5, which is still a great overclock. don't feel entitled to have a chip that can get over 4.5, it will just disappoint you more. there was a guy on OCN who couldn't get over 4.2 without 1.42vcore, so i wouldn't feel so bad. you really wont see the 100mhz difference anyways, and if you're going to try for 5.0, what's the point if it's going to take well over 1.5v?

note: i'm assuming that you've read guides on how to OC? READ THIS IT MIGHT HELP A LITTLE tongue.gif
post #5 of 12
You may really benefit from the linked threads--there is a help-sheet on the BSOD and what they mean in relation to your OC settings, and that most certainly will come in handy at some point when getting your OC prime95 stable. There is a tad bit more to getting a safe/stable OC than just bumping vcore. For example, when getting my chip 5ghz stable 8 hours + prime95 blend, I had to actually _lower_ my PLL voltage to get there.

http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet

http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet/2240#post_14466483
Edited by svthomas - 2/15/12 at 11:58am
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
post #6 of 12
Thread Starter 
Quote:
Originally Posted by svthomas View Post

You may really benefit from the linked threads--there is a help-sheet on the BSOD and what they mean in relation to your OC settings, and that most certainly will come in handy at some point when getting your OC prime95 stable. There is a tad bit more to getting a safe/stable OC than just bumping vcore. For example, when getting my chip 5ghz stable 8 hours + prime95 blend, I had to actually _lower_ my PLL voltage to get there.
http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet
http://www.overclock.net/t/968053/official-the-sandy-stable-club-guides-voltages-temps-bios-templates-inc-spreadsheet/2240#post_14466483

i'll try lowering the pll when I get back home.
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
Red Thunder
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k ASRock Fatal1ty Z68 Pro3 Gen3 Diamond Multimedia HD 5970 G.Skill Ripjaws X 8GB 
Hard DriveHard DriveOptical DriveCooling
OCZ Solid 3 60GB Seagate Barracuda 7200.9 160GB Lite-On iHAS424 Sunbeam Twister 120 
OSMonitorKeyboardPower
Windows 7 Ultimate 64-bit Samsung SyncMaster E1920X Logitech K120 Corsair GS700 
CaseMouseMouse PadAudio
NZXT Phantom Razer Naga None Realtek ALC892 
OtherOtherOther
Behringer Xenyx 502 Lepai LP-2020A+ Dayton Audio B652 
  hide details  
Reply
post #7 of 12
Quote:
Originally Posted by White Fire View Post

i'll try lowering the pll when I get back home.

What I was meaning was that the vcore isn't the only important factor in the overclocking process--I am not certain the PLL is your issue, I was just stating that because when I was having a stability issue @ 5Ghz, it wasn't due to my vcore at all, and even if I increased it, it probably wouldn't have solved my issue.

Did you find the LLC you need for your particular hardware to eliminate your vdoop as much as possible _before_ you started bumping your vcore and multiplier? If you haven't, you may have always had a problem, and things may seem fine with lower clocks because you probably have more than enough voltage (more than it actually needs) under load (even with the droop) to keep the chip happy, but as soon as you get up to the max clock for your chip, this may not be the case and you'll need to have this as precise as possible as your voltage will become increasingly important for stability. I am just giving you examples here.

Honestly, if I were you, I wouldn't start changing things like the PLL just yet, I would read some info from those two threads/guides for overclocking sandy, get a good, solid understanding about what exactly is going on when each setting is changed, and then reset my bios to stock and start over--I am not sure what all you know about OCing sandy, so I am just starting with the basics, and am in no way meaning to be rude or anything, you may already know that stuff. But I think the most important thing here is that there is obviously a problem, and I wouldn't go randomly trying different voltages trying to solve it, you may damage something along the way--I certainly wouldn't start giving up on the chip, either. I would start over with a good safe, solid foundation for your motherboard in regards to overclocking, and then start the OC process again. If you follow the information provided in those guides, I am fairly confident you'll be able to find the max safe overclock you'll be able to achieve with your particular chip, mobo, and cooling. It may be what it's at now, it may not. Those are the two resources I used when getting my OC stable, and they served me extremely well.

Anyways, this is all just my 2cents.gif, and how I would go about fixing the issue you're having. Best of luck to you!

Oh, and also, this _will_ be a long process, I spent about 7 days getting the right settings for my hardware. Lots and Lots of prime95 blend tests, haha. Just take it slow, follow the tons of good information on these forums about overclocking sandy bridge, and be patient, it'll pay off! smile.gif
Edited by svthomas - 2/15/12 at 2:28pm
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
Uncensored
(29 items)
 
AMD PII Rig
(15 items)
 
 
CPUMotherboardGraphicsGraphics
AMD FX 8120 @ 4.8Ghz ASUS Sabertooth 990FX MSI Geforce GTX680 #1 MSI Geforce GTX680 #2 
GraphicsRAMHard DriveHard Drive
PowerColor 7970 ref. (Backup card...) 16 GB Corsair Vengeance PC3 12800 Seagate Barracuda 1TB 7200RPM Crucial 128GB M4 SSD 6Gb/s 
Optical DriveCoolingCoolingCooling
None PrimoChill PrimoFlex PRO LRT Tubing 1/1" ID 3/4... Swiftech MCP655 Koolance VID-NX680 
CoolingCoolingCoolingCooling
Koolance VID-NX680 Danger Den Monsoon D5 Bay Reservoir Enzotech Compression Fittings Scythe Gentle Typhoon AP-15 x4 
CoolingCoolingOSMonitor
EK-Supreme HF XSPC RX480 Win 7 Ultimate 64bit Acer 23" 1080p S232HL #1 
MonitorMonitorKeyboardPower
Acer 23" 1080p S232HL #2 Acer 23" 1080p S232HL #3 Razer BlackWidow Ultimate Mechanical Keyboard Seasonic X750 Gold 
CaseMouseMouse PadAudio
Danger Den 26  Razer Deathadder My cat, or other small, furry creatures. Creative Sound Blaster X-Fi Titanium 
Audio
Sennheiser HD555 Headphones 
CPUMotherboardGraphicsRAM
AMD Phenom II 955 Black Edition ASUS Crosshair iv Formula SAPPHIRE Radeon HD 6950 2GB (unlocked) - ref Corsair Vengeance 8GB (2 x 4GB) 
Hard DriveOptical DriveCoolingOS
Seagate Barracuda 1TB 7200RPM None NZXT havik Win 7 Ultimate 64bit 
MonitorKeyboardPowerCase
Samsung 19" LCD Razer BlackWidow Ultimate Mechanical Keyboard  CORSAIR TX650 Antec 902 
MouseAudio
Razer Naga M-Audio Studiophile AV40 Powered Monitor Speakers 
  hide details  
Reply
post #8 of 12
By the sound of it, your processor has hit its overclocking "wall".

No matter how much power you add to it, it won't go any farther.
BlueRaven
(13 items)
 
Dead BIOS
(9 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 G74Sx NVIDIA GeForce GTX 560M  Samsung  
RAMRAMHard DriveHard Drive
Samsung  Samsung  Momentus 7200.4 Scorpio Blue 
Mouse
Logitech G700 
  hide details  
Reply
BlueRaven
(13 items)
 
Dead BIOS
(9 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core i7 G74Sx NVIDIA GeForce GTX 560M  Samsung  
RAMRAMHard DriveHard Drive
Samsung  Samsung  Momentus 7200.4 Scorpio Blue 
Mouse
Logitech G700 
  hide details  
Reply
post #9 of 12
Mines similar to yours 4.5 ghz 1.33 vcore and stable a rock. Ive managed to get what looks like a stable 4.6 ghz but i had to go all the way to 1.39 vcore. I am seeing some odd vcore numbers at idle im getting 1.40-1.41 vcore and 1.38 on prime 95(thats with 1.39 vcore set in bios), maybe thats normal I don't know I'm still a bit new to this.
Gaming rig
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5-2500k gigabyte z68xp-ud4 evga 480 gtx evga 480 gtx 
RAMHard DriveHard DriveCooling
corsair vengeance western digitial black seagate antek hydro 620 
OSMonitorKeyboardPower
windows 7 home premium 64 bit crossover 27q led standard rosewill 1000w 
CaseMouseOther
coolmaster HAF 932 naos mionix 5000 razer nostromo 
  hide details  
Reply
Gaming rig
(15 items)
 
  
CPUMotherboardGraphicsGraphics
i5-2500k gigabyte z68xp-ud4 evga 480 gtx evga 480 gtx 
RAMHard DriveHard DriveCooling
corsair vengeance western digitial black seagate antek hydro 620 
OSMonitorKeyboardPower
windows 7 home premium 64 bit crossover 27q led standard rosewill 1000w 
CaseMouseOther
coolmaster HAF 932 naos mionix 5000 razer nostromo 
  hide details  
Reply
post #10 of 12
Furtherest I have pushed my 2500K is 4.7Ghz, but it needed over 1.45v to get there, and even that wasn't entirely stable. I am running stable at 4.5Ghz with 1.38v at the moment. Every chip is different, some need alot of voltage for higher overclocks, some don't. Some wont go past a certain speed at all. 4.5Ghz is a great overclock anyway.

BTW, sorry about commenting on an old thread. Was browsing google and came across it.
My System
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.4Ghz Gigabyte GA-Z68XP-UD4 2x Asus DirectCU II Nvidia GeForce GTX 660 SLI 2x4GB Corsair Vengeance DDR3-1866 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Neutron GTX 120GB Samsung SpinPoint F3 1TB Western Digital Caviar Blue 1TB LG 22X SATA (GH22LS50) 
CoolingCoolingOSMonitor
Corsair H100 3x NZXT FZ-120 Red LED Fans Windows 7 Ultimate x64 AOC e2350SD 1920x1080 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX650W NZXT Tempest 410 Elite Logitech MX-518 
AudioAudioAudio
Logitech Z-506 Realtek HD Audio Sennheiser HD 201 Headphones 
  hide details  
Reply
My System
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5 2500K @ 4.4Ghz Gigabyte GA-Z68XP-UD4 2x Asus DirectCU II Nvidia GeForce GTX 660 SLI 2x4GB Corsair Vengeance DDR3-1866 
Hard DriveHard DriveHard DriveOptical Drive
Corsair Neutron GTX 120GB Samsung SpinPoint F3 1TB Western Digital Caviar Blue 1TB LG 22X SATA (GH22LS50) 
CoolingCoolingOSMonitor
Corsair H100 3x NZXT FZ-120 Red LED Fans Windows 7 Ultimate x64 AOC e2350SD 1920x1080 
KeyboardPowerCaseMouse
Logitech G15 Corsair HX650W NZXT Tempest 410 Elite Logitech MX-518 
AudioAudioAudio
Logitech Z-506 Realtek HD Audio Sennheiser HD 201 Headphones 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › i5 2500k can't get 4.6GHz overclock?