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Did I fry my old trusty 2500k?

post #1 of 19
Thread Starter 
I decided to see what my i5-2500k could really do and it seems I fried it in the process.

The system I'm running is as follows:
- Core i5-2500k
- Scythe Mugen 3 CPU-cooler
- Asrock Z68 Pro3 mobo
- 2x4gb kingston valueram
- XFX Pro 550w PSU
- GTX 560ti

This is what happened.
My GPU was running with really high temps and I decided to replace the TIM on it with CLU. I thought to myself why not to do the same with my CPU and up the OC as far as it goes. I've been running it at 4.5Ghz 1.38V OC on and off throughout it's life.

I got it to 4.7Ghz quite easily with 1.39V voltage and 75C - ish temps. At 4.8 I hit a wall. However, I wanted to see if I could get it stable so I raised the voltage in 0.01V increments and finally got it to boot in Windows but it then crashed.

At this point, I raised both PCH and PLL by 0.1V as I had read this could help. I also raised vcore by 0.01V for one last time and booted again. I was able to run IBT for 1 run, with vcore voltage at 1.45V and 85ish temps at load.

Then it happened, my PC rebooted itself without bluescreen and couldn't get into POST anymore. That's the state it's still at. I've tried clearing CMOS, taking off the battery, removing videocard and all but one RAM stick but I cannot get any video out of it anymore. Fans are spinning and HDD gets power just fine though.

Now I've unplugged the PSU from the wall, have the CMOS jumper on clear and the battery off to let the capacitors dry out completely before testing one more time.

But, judging from all this, how likely is it that I've fried something?
Edited by Haades - 10/10/16 at 7:47pm
post #2 of 19
what is your PLL voltage now?

this from a intel tech:
1.9v PLL is required for stability with some of the higher overclocks
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Old X58
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post #3 of 19
I doubt the CPU is fried with those voltages. If anything your motherboard popped. Do you have another 1155 chip to test?
post #4 of 19
Thread Starter 
Stock was 1.83V so 1.91V and PLL overvoltage setting set at enable.
post #5 of 19
I would agree with motherboard most likely being at fault. I ran my old 2500k at 1.53V several times for benching.
post #6 of 19
Thread Starter 
@Penicilyn No, I don't have any spare components other than the system I'm running.
post #7 of 19
Thread Starter 
I remember reading something on the internet about Asrock bios corrupting if ran with unstable settings. How do I fix it if something like this happened?
post #8 of 19
I wouldn't be surprised if its dead the same thing happened to 2 people I know with 2500k's.

One was the same situation as yours black screen no boot, the other would bluescreen at stock. I was able to RMA one of them but the other was past warranty time on the CPU with no proof of purchase which has to be from a retail store and first party buyer, he now has a 3570k.

I'm still convinced the first one dying was from a voltage glitch on the motherboard having to do with switching from the offset voltage.

It could be the motherboard but I doubt it.
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post #9 of 19
Well good news is the 2500K are really cheap, you can get one for $90-110 on eBay. Bad news is the 1155 good boards are more money now, like around $180-200.
    
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CPUMotherboardGraphicsRAM
Intel Core i7 3770k Gigabyte Z77X-UD3H PNY GTX 770 XLR8 OC 2GB VCGGTX7702XPB-OC 16GB (2 Kits) Samsung 30nm "Miracle" Green 4x4G... 
Hard DriveHard DriveOptical DriveCooling
Seagate 600 Series 240GB SSD 2x Western Digital Caviar Blue 1TB Samsung SH-224FB Phanteks PHTC12DX 
CoolingCoolingCoolingCooling
Prolimatech MK-13 2x Yate Loon D14-BH-12 140mm Fans 3x Corsair SP120L 120mm Fans Lian Li 140mm Vented Top Panel Lian Li T-LM14B-2  
OSMonitorMonitorKeyboard
Windows 7 64 Professional 1x Asus PB258Q (Primary 1440P) 1 Asus VH242H (Secondary 1080P) Filco Majestouch II Ninja TKL Keyboard (Cherry ... 
PowerCaseMouseMouse Pad
Seasonic SS-660XP2 660 Watt Platinum Lian Li PC A05 Zowie BenQ EC2-A Corsair Mouse Mat MM600 on top of Inateck Huge ... 
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Cambridge Soundworks FPS 2000 4.1 TPLINK N600 Wifi Inateck Superspeed 4 Ports PCI-E to USB 3.0  
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post #10 of 19
Thread Starter 
I found an used asrock board for sale on a Finnish tech forum, 15 min drive away from me. Is it still more likely the mobo than the CPU?
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