Gigabyte z77x-d3h Issues, Lots of them.

feck199

feck199

feck199

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Gigabyte z77x-d3h,

System is stable for 3months, gone from 8gb to 16gb ram.
Start getting BSOD.
Even dropping back down to 8gb at this point did not stop the BSOD, the system refused to go back to its stable state, with many things tested.
Tested all ram, tested all slots.
Tested with all / most hardware unplugged, and a fresh harddrive with a fresh install of windows. After many BSOD, noticed it seems to error on a fresh install when iGPU is installed.

Setting ram volts at 1.55v then 1.6v, at the time I noticed the bios shows 1.5v as actually been 1.48v. Reducing the ram timings still got BSOD, until dropping the ram to 1333.

System appears stable at 1.6v, 4 sticks running at 1333. Timings still reduced(not sure if this part helped)

No blue screens for the next week, computer does bring up the bios once suggesting that improper bios settings have been used, and asks to reset to default. Ignoring this and booting anyway the system continues to work.

Question One, I've read about VTT voltage, but it is greyed out on this motherboard, I see the option but on f8 and f9 bios I cannot modify the VTT Voltages. (suggestion was upping this may allow 1600 speeds) - Any ideas

This was working fine before the second 8gb was introduced, now it only will work on the above settings, not effected by 8gb or 16gb.

Question Two, Any suggestions what you want to blame most, even though it appears stable now i'm really not trusting this system at the moment. Even with one stick of ram, a new harddrive its still wont let me boot up a fresh copy of windows and allow updates unless i lower the ram speed and raise the volts.

I'm thinking PSU or Motherboard at the moment.

Edit -- I did have another thread but gave up on it while doing more testing.

Z77X-D3H
Intel Core i7-3770K
Crucial RealSSD M4 64GB
OCZ ZS Series 550W
Corsair Vengeance Low Profile 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz
 
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I also had problems running a friends machine that i built with 4x4Gb Kingston HyperX 1600Mhz but since dropping to 1333Mhz its been fine. Same board but with i7 2600K
 
Tried the beta bios, just changed the bsod to a white screen of evil lines during the process of locking up.

Used another PSU today, and an actual GPU still managed to bsod at 1600.

Blaming the board at this point. Although it could be the cpu, dont have more paste here to swap cpus so looking at rma options unless any great ideas come up.
 
Ram passes Memtest done each stick one by One, in pairs and all four. Also tried ram from another system along with PSU and GPU.

Same problem on original f8, f9 and then f11a. Bsod turned into a white crash on the latest BIOS so went back to f9.

Can check the backup BIOS, although I think this may of been used on some reboots after crashes. AFAIK there is no switch just alt+f10 and boots that don't post the second one I've had when testing higher volts on the ram.
 
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