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New to overclocking, having some troubles

post #1 of 11
Thread Starter 
First the build:
i5 2500K
MSI P67-C45 motherboard
G. Skill CL9 DDR3 (9-9-9-24 @ 1600Mhz) 4GBx2



Shortly after that burn test, Core #2 was sitting at 80~ load despite nothing loadworthy running, and even after closing MSI Afterburner, IBT, and CPU-Z, it stayed. BSODed while trying to type up this post earlier so have since clocked it back down to 4.0 Ghz (Or 3991.5Mhz per CPU-Z) where it's definitely more stable.

The ram is currently running at 1333 Mhz per bios, trying to set it to run at 1666 Mhz by changing the DRAM Ratio to 6 and cpu to 45 multi resulted in 1.65 DRAM Voltage and BSOD on trying to boot windows. It looks like even 43 wasn't stable either.

First thing I probably should do is turn off the Auto on CPU Vcore and DRAM Voltage, but I'm not really sure what setting to put it at. The bios warns about setting it at 1.65 (the ram), and I really don't want to overvolt the CPU.

My goal is to get 4.5Ghz, but I'm a bit lost on how to best tweak the voltages manually.

CPU temps seems fine, the bios test for ram worked fine (I'm not entirely sure how to setup memtestx86 on my USB drive.)


One thing I did read was updating the bios would help with overclocking, but I'm not entirely sure if it was an issue with the bios that was causing the system to be unable to load windows? MSI's instructions on how to create a bootable USB Stick are also less than useful unless I happen to be using an HP memory stick...

It seems that my system is actually getting worse with a higher OC, if you check the time per burn above @4.3 and the times and glops below @4.0



This is likely related to an incorrect voltage or maybe just a BIOS issue? Not really sure...

Anyway, tips/tools for adjustment would be handy that are more relevant to the Sandy Bridge. The MSI bios seems a bit more restrictive for OC than the others. Prior to the overclock the CPU also ramped back down to base clock which would be nice assuming the vdroop doesn't drop too low. But again, the how is lost to me at present.

Here is a maybe relevant link about OCing with the MSI board:
http://www.bit-tech.net/hardware/cpu...ore-i5-2500k/5
Edited by Tancients - 1/20/11 at 3:43am
post #2 of 11
What cpu cooler are you using? 80 degree is a bit high for overclocking.

Rules:
Never pump too much voltages on ram above 1.65v because of IMC (Integrated memory controller) that will fry.

For cpu, never pump voltage above 1.35v unless you are water cooling or high performance cpu cooler. 1.4v and above is phase change cooling or Liquid nitrogen.
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Western Digital Caviar Black 1TB LG GH-22 Coolermaster Hyper 212 plus Windows 7 Home Premium 64bit 
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Hard DriveOptical DriveCoolingOS
Western Digital Caviar Black 1TB LG GH-22 Coolermaster Hyper 212 plus Windows 7 Home Premium 64bit 
MonitorMonitorKeyboardPower
Philips 230E(Main screen) Acer AL1916W(Secondary) Rosewill RK9100 Mechanical CherryMX Blue Keyboard Aerocool E85M-700W 
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Ikonik EN2-WB Logitech MX518 Razer Goliathus AKG GHS 1 
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post #3 of 11
Thread Starter 
I'm using a HAF 212+ cooler, whole system is being cooled by air.

Do you mean 80 degrees Fahrenheit? Nothing there even comes close to 80 degrees Celsius...

Edit: Ah, the 80 is load %, shown by coretemp. NOT Temperature. It meant something was using that core, or was an error that cause it to not be working properly, demonstrated by the computer crashing shortly afterwards.
Edited by Tancients - 1/20/11 at 8:35am
post #4 of 11
Thread Starter 
Got better IBT time and glops after a bios update, but still had a BSOD a few minutes afterwards at 4.5 Ghz...
post #5 of 11
Thread Starter 
Bumping and adding a few more notes/comments/things I've done.

Ran a maximum IBT for 20 runs on stock to ensure there wasn't any stability issues with the PC. Came back clean, with each successive test being a few milliseconds faster than the previous.

The bios isn't running the ram at the rated speed from when I bought it. Is that something to be concerned about?

Should I touch only the multiplier, and leave the voltages to auto for now? Maybe just go to 4.0 first and test it?

Also, is there a way to keep the turbo switching when over clocking without leaving the cpu always at the maximum speed? Is that an issue in a 24/7 PC?
post #6 of 11
seems like you are NOT the only person with this happening, there is a thread in intel cpu section with this as well.
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CPUMotherboardGraphicsRAM
Intel 5960X Extreme Edition @ 4.5GHz Always Changing VisonTek R9 290 G.Skill Ripjaws 4 16GB (4x4GB) DDR4 @ 3200MHz 
Hard DriveHard DriveHard DriveCooling
Samsung 128GB M.2 PCI-E 4x SSD Apotop 256GB SSD 1.82TB NAS Noctua NH-D15 with both fans 
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post #7 of 11
i am the guy with this type of problem to, it is the BIOS only way i can stabe my machine @ 4.8 is by setting it to this guys settings over @ OCUK

http://forums.overclockers.co.uk/sho...227651&page=14


POST NUMBER 412# follow those steps.

You will have to change vcore and the dram vcore... also the turbo frequencies i have mine on 48 for 4.8
post #8 of 11
Thread Starter 
Quote:
Originally Posted by Sin0822 View Post
seems like you are NOT the only person with this happening, there is a thread in intel cpu section with this as well.
Can you link the thread? I could've sworn I looked for similar cases but must've overlooked that one.

@rchads89

Reading your posts on that other topic seems to result in the EXACT same issues I was having. Prime 95 stable for 10 hours in short FFT and blend, Maximum IBT 20 runs stable, but the moment I try and do 'everyday' stuff, I'd eventually get a 124 BSOD. For now I just restored the OC settings back to default so everything is running at stock. Going to leave it like that for a day just to make sure there isn't any oddball issues with the hardware itself.

Also, where exactly do you change the turbo frequency? The bios seemed to think my CPU Ratio was locked...



Even changing the cpu voltage up to 1.3 earlier didn't solve the 'casual usage BSOD'. I was suspecting it was something with maybe the PLL. Has your system been working properly via following those screenshots then?
Edited by Tancients - 1/21/11 at 5:25pm
post #9 of 11
Quote:
Originally Posted by Tancients View Post
Can you link the thread? I could've sworn I looked for similar cases but must've overlooked that one.

@rchads89

Reading your posts on that other topic seems to result in the EXACT same issues I was having. Prime 95 stable for 10 hours in short FFT and blend, Maximum IBT 20 runs stable, but the moment I try and do 'everyday' stuff, I'd eventually get a 124 BSOD. For now I just restored the OC settings back to default so everything is running at stock. Going to leave it like that for a day just to make sure there isn't any oddball issues with the hardware itself.

Also, where exactly do you change the turbo frequency? The bios seemed to think my CPU Ratio was locked...



Even changing the cpu voltage up to 1.3 earlier didn't solve the 'casual usage BSOD'. I was suspecting it was something with maybe the PLL. Has your system been working properly via following those screenshots then?
Yeah fine, infact its been great. Follow those screenshots step by step and you will be fine.

What BIOS are you on?
post #10 of 11
Thread Starter 
I'm on 1.7. Does the beta 1.8 fix anything worth flashing to? You have a different motherboard (You have the higher quality one, I went with the "I'm never going to SLI" one, heh) which might affect things as well?
Edited by Tancients - 1/21/11 at 8:50pm
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