Overclock.net › Forums › Intel › Intel CPUs › Instability Insanity (Help me, OCN, you're my only hope!)
New Posts  All Forums:Forum Nav:

Instability Insanity (Help me, OCN, you're my only hope!)

post #1 of 5
Thread Starter 
Hey guys, this is a bit of a long story but please bare with me, I'm a pretty experienced OC'er and I'm absolutely stumped.

So, yesterday evening after having read that post about how the new 320.18 WHQL Nvidia driver has been bricking/causing artifacts I decided to err on the side of caution and revert back to an earlier (320.14) driver. I followed the guide on how to safely and completely remove the drivers which is posted here on OCN involving removing the driver manually and also removing the nvidia entries from the registry, as I've always done for the past year or so. Everything went fine, I rebooted with the 320.14 and everything was fine. But then my audio started cutting out.

So, I restarted the computer. But it froze at the ASUS splash screen three times, having restarted at each freeze to see if it would work again. Nothing too unusual, so I pressed and held the reset CMOS button on the back of my board (ASUS Maximus IV Extreme P67 (non-z) and it reset the bios to stock, and everything was fine. Or so I thought.

I had re-entered my overclock settings to what they were before the CMOS reset and tested in Prime95 and it crashed after 10 minutes. I figured I just hadn't correctly re-entered my OC settings (Despite my signature I had been back to running at 4.6GHz @ 1.35vcore, manual, no offset) so I went into the BIOS and reset the clocks and voltages to stock, and tried Prime95 again. It would immediately crash and BSOD the 0x000000124 error. I've never had it fail Prime95 at stock, althought the last time I Prime95 tested was probably 9 months ago. This was kind of weird.

So I tried increasing the voltage with stock clocks, also trying with and without the XMP profile, tried different loadline calibrations (stock, 50%, and 75%) and I ran Memtest86 and no errors came back. Still, the computer would hang after about 30 minutes of just browsing around, BSOD or randomly restart no matter what I tried. Prime95 by this point wouldn't even run-- as soon as I'd hit the button to start the test it would just immediately reset.

I've also tried disabling the 1e, c3 and c6 reporting options and they don't make a difference, all they seem to do is force my CPU to run at full throttle all the time when they're all disabled. I always had my CPU throttle down, so before this whole mess I'm sure they were enabled.

Somewhere along the line I noticed that the LN2 switch was in the "on" position. I turned it off, and the CPU no longer hangs randomly. Infact, it plays through demanding games just fine and isn't giving me any issues. The only time my computer crashes is when I run Prime95, and it crashes IMMEDIATELY.

Am I looking at a possibly damaged CPU? I always was of the opinion that CPUs either work or they don't (most of the time) and if I can game and run the computer normally, then the CPU isn't borked. My temps have never gone above the mid 60s (this would have been while running Prime95) and my watercooling setup has always worked perfectly... But it seems Prime95 just kills it. Is this a typical symptom of CPU degradation or are there some other tricks I can try?

TL;DR: Unstable in Prime95 at all clocks and voltages, otherwise fine. This all happened after a CMOS reset after having reinstalled new GPU drivers.

EDIT: I just tried, as a test, encoding a small file in Handbrake to mp4 format using 4.6GHz @ 1.35v. It BSOD'd immediately and gave me error 0.0000000x101. This is really looking like a dead CPU. Argh.

EDIT 2: I'm now 15 minutes into a Prime95 run at a slightly higher voltage than before (1.38v) and a slightly lower OC (4.2GHz) and it seems to be just fine. Could this loss of OC ability be due to CPU degradation?

EDIT 3: I'm now stable at 4.2GHz and 1.33vcore, manual, no offset, c-states all off except for c1e, 50% LLC. When is Haswell supposed to be dropping again?biggrin.gif But honestly, I'm just happy that I can use the machine again, despite it not being able to OC like a beast anymore. I guess 1.40+ voltages really do take a toll after 2-3 years.

I consider this resolved... But this thread should stay up to help those who find themselves in a similar situation. Lower your OC, lower your volts, and pray. It's yer CPU whether you like it or not.

Edited by lowfiwhiteguy - 6/10/13 at 4:21pm
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
post #2 of 5
320.18, that right there is your problem, it may have caused permanent damage to your gpu. try 314.22.

or better yet, try running without gpu, use the igpu.
post #3 of 5
Thread Starter 
I actually moved back again to 314.22 from 320.14 before dropping my clocks for the second time (see OP) and it still had stability issues in Prime95. I'm pretty sure this isn't related to the GPU or its drivers. It's just a coincidence.

I'm actually hoping it's the CPU because that's an easy fix thanks to ebay. Anyone want to sell me their 2600K? biggrin.gif
Edited by lowfiwhiteguy - 6/10/13 at 12:21pm
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
post #4 of 5
Thread Starter 
It's worth noting that I havn't tested in Prime95 in months, so it's possible that it was unstable under Prime95 at my old OC for a very long time and I just never noticed it because I had no problems.

Which begs the questions.... If something is stable in use but unstable under Prime95, a synthetic torture test, then how relevant are Prime95 results really?
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
Óðinn
(15 items)
 
Methuselah
(15 items)
 
 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razor 580 | Dual SLI | 
CoolingCoolingCoolingOS
| XSPC | Dual RX360 | | Dual MCP-655 | Variable-Speed | | Koolance | RP-452x2 | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CaseLabs | M8 + Pedestal | 
CPUMotherboardGraphicsRAM
| Intel Core i7 | 2600K | 4.2GHz @ 1.33v | | ASUS | Maximus IV Extreme | | ASUS | ENGTX 580 | 933MHz @ 1.138v | 2-way SLI | | G.Skill | RipjawsX | 2133MHz | 8GB | 
Hard DriveHard DriveCoolingCooling
| Intel | 510 SSD | 120GB | | Western Digital | Caviar Black | 1TB | | XSPC | Raystorm | | XSPC | Razer 580 | 2-way SLI | 
CoolingCoolingCoolingOS
| XSPC | RX360 | | Phobya | Xtreme 200| | MCP 655 | Variable-Speed | Windows 7 Professional 64-bit 
MonitorPowerCase
| Acer | P243W | 1920 x 1200 | | Enermax | MODU87+ | 900W | | CoolerMaster | HAF X | 
  hide details  
Reply
post #5 of 5
Depends on what you do with your PC I guess. For me if it doesn't crash in games or when I'm encoding a video that's fine for me.

Some people have very sensitive data on their PCs they can't afford to lose, an unstable OC can throw a WHEA error and corrupt your operating system needing a fresh install. Not good for some people, for me, could care less.

But that's why people normally do prime95 stability.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › Instability Insanity (Help me, OCN, you're my only hope!)