Bought this 78LMT-USB3 for my new mATX build using a FX-8320 vishera processor and a corsair H60 watercooler with a corsair CX500M power supply. Its a home/work pc so I dont do much gaming nor do I reach for the star's with overclocking or performance. I was coming from a pentium E5800 with 4gb of ram so even at stock settings these computer flys by comparison.
I tried to dabble in bumping the 8320 up to 4ghz which should be very easy with this board (as claimed by gigabyte), turns out, this board is giving me all sorts of problems which i cannot determine are related to the bios, board itself, or the power supply (which i sent back yesterday for a replacement).
First problem i encountered was even after disabling every possible throttling setting in the bios, the CPU was still throttling under prime95, people on OCN suggested installing AMD overdrive, enabling turbo core via the software, then turning it off via the software each time the computer booted. Much to my surprise this fixed the throttling problem. Which pointed to a direct issue with the bios. No biggie.
After fixing that problem I began the process of finding the right settings to run 4ghz from 3.5ghz, an easy task running on water on an unlocked AMD cpu, as the turbo core settings are 4ghz anyway, it should be no problem running this all the time.
I noticed an immediate problem, as I couldnt get it stable at all even after upping the voltage to 1.46v, i was experiencing a massive amount of vdroop, almost .1v entirely, with the voltage set at 1.38v in the bios, i would drop to 1.276 under full load after 3 minutes of stress testing. With load line control on regular, the problem still existed, however with load line control on extreme, the idle voltage was going all the way up to 1.55v, although the full load voltage held steady. This problem even persisted with the CPU at completely stock settings. Dropping from 1.32v almost down to 1.20v.
I noticed that the readings i was getting in hardware monitor were incorrect for the power supply, showing 7.8v on the 12v rail, but the power supply tested fine, however there was a loud buzzing sound coming from the PC that was directly associated with load conditions on the system, especially during memtest, the cycling of the numbers would match the buzzing perfectly. I sent the PSU back to newegg for replacement, but the PSU did not exhibit this buzzing sound under no load, and I could not pinpoint where the buzzing was coming from with the system running.
I tried to contact gigabyte regarding this problem and they immediately told me they could not assist me with anything related to overclocking, thus I am out on my a$$ here with trying to get help. At the moment, i regret buying a gigabyte board, I stopped buying their products years ago for this very reason and for some reason I was tempted to buy again, big mistake. Any assistance anyone can provide me with this problem would be greatly appreciated, otherwise im probably gonna return the board and go buy an asus like i should have in the first place.
