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Getting HARD LOCK no BSOD, need help to find what causes it.

post #1 of 7
Thread Starter 
Ok fist of all my system: i5 3570k, Asus P8Z77-V LX, CORSAIR Vengeance 8GB (2 x 4GB), GTX 660, Samsung 840 120gb ssd, latest motherboard bios.

So I am getting time after time (~2 times in week) hard locks, so I ran 3 passes of Memtest86+ and I got no errors.
But then I run MemTest ( http://hcidesign.com/memtest/ ) I get errors like this:

Memory error found copying between 0xcc329000, 0x2f928de4, difference =20
Memory error found copying between 0xc1a0a144, 0x2500a000, difference =20
Memory error detected between 0xf4484000, 0x62804000 difference = 20
Memory error detected between 0xdc01d000, 0x3f61d000 difference = 20

I got those errors no matter if my cpu is OC (4.2GHz @ 1.128v ) or running all stock settings (except from that I decrease voltage when running in turbo mode 3.8ghz @ 1v).

So what can cause these hard locks?
post #2 of 7
Probably incompatible memory with the motherboard possibly due to voltage. I had a similar problem with my Sandy Bridge system back when it came out. Used 1.65v Mushkin Redline memory, system would hardlock randomly. Swapped out to some cheapo lower voltage 1.35v Micron D9 1333 sticks and the system never crashed ever again. I also used HCI memtest and it gave me errors on the Redlines and the free memtest detected nothing. Only HCI detected the errors. I have been crash free since the ram swap out. Considering swapping to a cheapo set of ram sticks and see if your system is stable. Sandy Bridge had problems with high voltage memory sticks. You could always try to run your ram sticks in JEDEC specs to see if it crashes or not.
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Skylake Is Here!
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CPUMotherboardGraphicsRAM
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post #3 of 7
Thread Starter 
Those Corsair RAMs runs at 1.5V @ 1600MHz is this high voltage for ivy?. When I OC I use XMP profile, with manual profile I think I am getting Hard locks more often.
post #4 of 7
Quote:
Originally Posted by Vaselkov View Post

Those Corsair RAMs runs at 1.5V @ 1600MHz is this high voltage for ivy?. When I OC I use XMP profile, with manual profile I think I am getting Hard locks more often.

1.5v sounds fine to me that's the standard for DDR3 JEDEC, if you could borrow someone's memory and run it for a while you could rule it out if it's a memory problem. Try down clocking your memory and voltage see if it stops the system from crashing. I wasn't successful in running my system stable with the Redlines down clocked and down volted as the system still crashed. At this point I kind of doubt it's a software issue since HCI already found errors copying data.
Skylake Is Here!
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CPUMotherboardGraphicsRAM
Intel i7 6700K Batch #L535B021 4.7Ghz @ 1.296V GIGABYTE G1 Gaming GA-Z170X-Gaming 7 EVGA Geforce GTX 970 SSC ACX 2.0+ G.SKILL TridentZ 16GB DDR4 3000 
Hard DriveHard DriveHard DriveCooling
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Windows 8.1 & 10 Dell UltraSharp 2913WM 21:9 2560x1080 Ducky Shine 4, CODE WASD, Deck Legend, G710+ EVGA SuperNova G2 850W 
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Skylake Is Here!
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700K Batch #L535B021 4.7Ghz @ 1.296V GIGABYTE G1 Gaming GA-Z170X-Gaming 7 EVGA Geforce GTX 970 SSC ACX 2.0+ G.SKILL TridentZ 16GB DDR4 3000 
Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro M.2 512GB  Crucial BX100 250 GB SanDisk SSDPlus 240 GB NZXT Kraken X61  
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Windows 8.1 & 10 Dell UltraSharp 2913WM 21:9 2560x1080 Ducky Shine 4, CODE WASD, Deck Legend, G710+ EVGA SuperNova G2 850W 
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post #5 of 7
Thread Starter 
Tried 10-10-10-27 1333Mhz @ 1.35 V, still getting error. Strange thing that sometimes I manage to pass 100% in HCI memtest, and other times I get error like after 5%. Maybe there are other "problems" with bios settings? Like VCCSA? Mines on auto gives 1.05v, but with manual value of .925 works fine too.

And my system freeze is quite rare, I got 1 freeze in 4 days while testings.
Also i found post that says:
Quote:
HCI Memtest can sometimes find that rare bit that memtest86+ wasn't able to find. As I recall, HCI stresses the memory subsystem a lot more, so it can detect an unstable IMC as well.

Edited by Vaselkov - 9/22/13 at 3:14am
post #6 of 7
Quote:
Originally Posted by Vaselkov View Post

Tried 10-10-10-27 1333Mhz @ 1.35 V, still getting error. Strange thing that sometimes I manage to pass 100% in HCI memtest, and other times I get error like after 5%. Maybe there are other "problems" with bios settings? Like VCCSA? Mines on auto gives 1.05v, but with manual value of .925 works fine too.

And my system freeze is quite rare, I got 1 freeze in 4 days while testings.
Also i found post that says:

Then it is probably highly likely that the ram is the culprit in your crash. I had the same thing too, my system would run fine for 2-3 days then BLAM! it crashes. That's probably what happened with my memory it probably had 1 unstable IMC somewhere. Even after testing with HCI several times and picking up the errors not consistently my system would continue it's path to BSOD. I talked to Mushkin tech support and they refused to admit that the memory was bad even after I said I tested them in HCI and it picked up errors. The Redlines I had ran super hot even when downclocked and the tech told me to adjust the VCCSA and I adjusted it but the system still crashed. I probably wouldn't bother adjusting the VCCSA at this point. RMA them if you can.

After using HCI I don't do the freebie Memtestx86+ stuff anymore. They just don't stress and pickup errors as well as the pay for memory testing software. If HCI picked up something then it's most likely the memory. I did a recent troubleshooting on my brother's computer running HCI for 5 full passes and it didn't pick up anything at all. After some more part swapping out we eventually figure out it's the PSU.
Skylake Is Here!
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700K Batch #L535B021 4.7Ghz @ 1.296V GIGABYTE G1 Gaming GA-Z170X-Gaming 7 EVGA Geforce GTX 970 SSC ACX 2.0+ G.SKILL TridentZ 16GB DDR4 3000 
Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro M.2 512GB  Crucial BX100 250 GB SanDisk SSDPlus 240 GB NZXT Kraken X61  
OSMonitorKeyboardPower
Windows 8.1 & 10 Dell UltraSharp 2913WM 21:9 2560x1080 Ducky Shine 4, CODE WASD, Deck Legend, G710+ EVGA SuperNova G2 850W 
CaseMouseMouse PadAudio
Phanteks Enthoo Evolv ATX Mid-Tower Ducky Secret SteelSeries Fostex Purple Heart TH-X00 
Audio
AKG K553 Pro, Philips SHP9500, Superlux 668B, S... 
  hide details  
Reply
Skylake Is Here!
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 6700K Batch #L535B021 4.7Ghz @ 1.296V GIGABYTE G1 Gaming GA-Z170X-Gaming 7 EVGA Geforce GTX 970 SSC ACX 2.0+ G.SKILL TridentZ 16GB DDR4 3000 
Hard DriveHard DriveHard DriveCooling
Samsung 950 Pro M.2 512GB  Crucial BX100 250 GB SanDisk SSDPlus 240 GB NZXT Kraken X61  
OSMonitorKeyboardPower
Windows 8.1 & 10 Dell UltraSharp 2913WM 21:9 2560x1080 Ducky Shine 4, CODE WASD, Deck Legend, G710+ EVGA SuperNova G2 850W 
CaseMouseMouse PadAudio
Phanteks Enthoo Evolv ATX Mid-Tower Ducky Secret SteelSeries Fostex Purple Heart TH-X00 
Audio
AKG K553 Pro, Philips SHP9500, Superlux 668B, S... 
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post #7 of 7
Thread Starter 
After all day testing, I found out that one ram gives me errors in hci memtest, and other passes 100%, so now I know that something is wrong with one ram stick and not with other components. Also I tested with Memtest86+ 5.00RC1, still no errors..

I would RMA those rams, but I need pc running for my studies. I don't think they allow me to send them back one stick of ram. Well never mind.
Thanks for support. thumb.gif
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