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I5 2500k overclocking help for a newbee

post #1 of 16
Thread Starter 
Hi there everyone !
I just built a rig and I would like to OC my CPU and I would like to hear out the suggestions of veteran overclockers who know what they are doing.
My rig :
MOBO : Asus P8Z77-M
CPU : I5 2500k
CPU Cooler : Noctua NH-D14
PSU: Cooler Master Elite Power 600 RS600
I would be more than happy to hear out a value that my motherboard can handle and which I can use for everyday use and gaming (I was thinking about 4.3 and 4.5 ghz but please tell me which one my mobo can handle and I would like to get values which won't cause serious damage to my system and would only affect the CPU's life span a little bit ). Thanks in advance.
Edited by w1n1x - 4/11/17 at 6:47am
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
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Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
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post #2 of 16
Board should be fine for hitting 4.5. It will more depend on the CPU when talking about what voltage you will need, but I would say 1.3 vcore is a good place to start. Last 2500k I had (which I sold to a friend and is still running at 4.5 to this day) did 4.5ghz with 1.325 vcore. You don't mention PSU, but that is also a factor when overclocking...
post #3 of 16
Thread Starter 
My bad, I edited my first post , you should be able to see it now !
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
post #4 of 16
Thread Starter 
Any suggestions ? Should I hit it with this PSU ? BTW I guess I don't need to touch anything other than the multiplier and the voltage, am I wrong?
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
post #5 of 16
I feel obligated to tell you.... There are hundreds of guides on overclocking a 2500k. Several on this forum and likely some even using that exact setup. Should have no problem doing a quick search to figure out a place to start.

I'm having problems finding any reviews on that PSU... Is this the unit you have? If it is... I wouldn't want that in my system even not overclocked and I would definitely swap it out...

http://www.hardwaresecrets.com/cooler-master-extreme-power-plus-600-w-power-supply-review/


As for your question - in theory for a 4.5 OC (which is considered a fairly light overclock) you should not HAVE to mess with anything other than the multiplier and voltage... that being said, you can obviously change other settings to optimize it to your liking (power saving features, etc). Since there is so much information out there on this cpu (and probably that exact setup) I would do some searching.

Edit - would also help to know your full system specs... more specifically, GPU. Usually it's just best to use the rig creator and add your rig as part of your signature. Helps people help you with your questions. thumb.gif
Edited by cam0385 - 4/11/17 at 7:22am
post #6 of 16
Thread Starter 
My GPU : Asus Strix GTX 970 Direct CU II OC version 4 gb DDR5.
What's the problem with the PSU according to you? I just OC-ed my CPU and I will run a test shortly with intel burn test and see whether the temperatures are too hot or not .
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
post #7 of 16
I mean, if you read the review... it kinda says it all. Overclock at your own risk.......
- can't deliver the advertised wattage
-poor efficiency
-bad voltage regulation

"The Cooler Master eXtreme Power Plus 600 W, like the 550 W model from the same series, can’t deliver its labeled wattage. The power supply immediately burned when we tried to run our 600 W load pattern (which would be our test number 22). Inspecting the power supply after it burned we discovered that the component that failed was one of the switching transistors. It is also very important to note that due to the huge difference between what we were supposed to see at the +12 V output and the actual voltage being delivered by the power supply (e.g., +11.25 V during test number 21), the total wattage delivered by the power supply was way lower than it should be. For instance, the load pattern used during test 21 was supposed to extract 575 W from the power supply, but it was delivering 547.3 W during this test.
Efficiency peaked at 77.6% during test eight, with the unit delivering around 245 W, and reached its lowest point at 69.2%, with the unit delivering 84.0 W.
Voltage regulation was bad, with the power supply not being able to keep the +12 V output inside its correct value from test 18 (480 W) on. Therefore, it is only safe to pull up to 450 W from this power supply – above this value this power supply can make your computer to run unstable."
post #8 of 16
actually... it looks like this has already been mentioned on this forum... from a very reputable source in power supplies who quoted that exact article I just linked to you

http://www.overclock.net/t/1594677/why-you-should-not-buy-a-cooler-master-extreme-power-plus-tomahawk

so... yea. If that is the PSU you have... I would replace it if you really want to overclock... heck, i'd replace it running everything at stock... wink.gif
Edited by cam0385 - 4/11/17 at 8:54am
post #9 of 16
Thread Starter 
So according to you it's quite unsafe to leave my CPU at 4.5 ghz because the PSU barely manages to produce 500w?
I guess I won't leave this at 4.5 ghz for too long, maybe I will adjust it back to original values when not gaming to prevent malfunctions. I guess I need a PSU upgrade. Good grief..
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
Current PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
I5 2500K 4.5 GHZ OC ASUS P8Z77-M ASUS STRIX DIRECT CU II GTX 970  Corsair Dominator GT 1866 mhz, 2x4gb DDR3  
Hard DriveOptical DriveCoolingOS
KINGSTON 120GB SSD UV400 SATA3 2,5" WD Blue 7200rpm (64mb cache) 1tb Noctua NH-D14 CPU Cooler Windows 10 Pro 64 bit 
MonitorKeyboardPowerCase
LG 22 EN33  Kolink V8 Backlight Gaming Keyboard Cooler Master Elite Power 600w RS600-ACAB-M4 Zalman Z11 Plus 
MouseMouse PadAudio
Redragon Mammoth 16400 DPI Razer Sphex Logitech G231 Prodigy Gamer headset 
  hide details  
Reply
post #10 of 16
I'm really just going off of the numbers and reviews. I wouldn't say "according to me". I would say "according to the data" thumb.gif... supposedly that PSU can barely put out 450w. Checked Guru3d for power requirements for a gtx970 system... see below and link to guru3d for more info.


Here is Guru3D's power supply recommendation:

GeForce GTX 970 or 980 - On your average system the card requires you to have a 500 Watt power supply unit.
GeForce GTX 970 or 980 in 2-way SLI - On your average system the cards require you to have an 800 Watt power supply unit as minimum.
If you are going to overclock your GPU or processor, then we do recommend you purchase something with some more stamina.


http://www.guru3d.com/articles-pages/gigabyte-geforce-gtx-970-oc-mini-itx-review,7.html
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