OK, I don't want to brag, but I just read all 6,000 posts in this thread. What am I doing with my life? Anyways, made a list of useful posts (to find actual post..um, the hyperlinks didn't go through, so I would just search for those words):
“IMC voltage must be 0.005v lower than the VTT”
“BTW IBT isn't as strong as Prime95 is for SB/IB”
“Reflash the BIOS with F7, put the BIOS ROM on a USB flash driver formatted in FAT32.
Go into advanced mode and hit F8 and then qFLash will come up, update to the latest BIOS.
After it is done flashing it will ask you if you want to shut down or restart, hit reboot.
THen immediately go into the BIOS, goto advanced mode, the last page, and select "load optimized defaults" then save and exit.
That is how you should correctly flash the BIOS.”
“both chipset drivers should be install first, however you might want to install the LAN drivers first to get ont he internet and download the rest. i would install all of them, however you wont be able to install the intel VGA drivers unless you remove your dGPU or set the iGPU to be IGFX Init first.
"Load optimized default you do through the BIOS, you goto the advanced menu, to the last page of the BIOS where it says save and exit, but you press the setting called "load optimized defaults" and then save and reboot.”
“yea and also don't install splashdot or whatever it is lol."
“Also if anyone else has run into this, I was unable to load the intel management engine software off the CD or from the gigabyte website for this board, it gave me an error during the install. I ended up getting a newer version of the driver off of tweak town's Gigabyte forums, they had it under the latest software thread, and it loaded up fine.”
“yea do this, go back to how you had it after the first step, i think both iGPU and dGPU need to be enabled, so just plug back into the iGPU after setting display first to IGFX, leave your dGPU plugged in.”
“Using DVID successfully is a bit tricky. To get the proper voltages at both load and idle, you have to set DVID and LLC settings appropriately. When using DVID, it basically it comes down to this:
•LLC will adjust the size of the range between idle and load Vcore.
•DVID offset will shift that whole range up or down.
If you are having troubles with stability at idle, then try reducing LLC while increasing the DVID offset. This will make the idle voltage higher while the load voltage will be the same as before. If on the other hand you are having trouble with stability at load, then try increasing LLC while leaving DVID the same. This will make the load voltage higher while the idle voltage will remain the same.”
“Thanks for your help! To everyone else, I did have all the power savings features on, I just couldn't get the voltage adjustments to work. Changing the LLC from Turbo to Medium gave me a idle voltage of 1.05 instead of 0.996, at normal, which solved my issues. Adding the correct offset afterwards was easy”
“If you have C-states and EIST enabled then your idle voltage will be something like 0.60-1.10v. Raising the LLC in this case will increase your load vcore only, while raising your offset under this setup will increase your idle and vcore (LLC is the range of vcore between idle and load, and offset is the shifting of that range).”
“(1) Raise your CPU Vcore to 1.100
(2) Increase your IMC to within .005 of your Cpu Vtt, for example IMC 1.050 and CPU Vtt to 1.055
(3) Increase your CPU/PCIe base clock from 100.00MHZ to 100.01MHZ which seems to work for me (some have reported success on 100.10 and 101)”
“You have to set power plan to "High perfomance" when overclocking a 2500k on the UD5h, otherwise the PC will go into hibernate and become unstable and crash shortly after resuming from hibernate. At least an until an option is added to the bios for turning off PLL Overvoltage when overclocking.”
“Flahing the BIOS is a pretty big deal, now we have dual BIOS as well as the manual switch on the UD3H and the UD5H and on the G1.Sniper 3 as well, so we don't really need to worry about the BIOS corrupting from a flash. but the truth is normal consumers freak out, so GB has made it so that when users flash they should use the physical ports which GB knows are properly powered and correctly situated. That is why you need to flash from the back ports"
“anyone can teach me how to flash the backup bios as well
cant find anything on the manual.
If you have a UD3H or UD5H or G1.Sniper3 then you can flick the switch to the other BIOS and flash it. otherwise press ALT+F10 on bootup and it should eventually catch at the right moment and update your backup BIOS.”
“processor sleep states.
Basically they clock the processor down when its not busy, they save power. I call it race to 0. Work is a countdown, 0 is rest time.
I leave them all on, most of the time. Sometimes they can cause stability issues with overclock, but I have had no issues with Ivy. YMMV
Turbo is the exact opposite, it clocks the processor up to speed the trip to 0. Disable turbo when overclocking, unless you are using it as your overclock, I guess that's totally feasible but then you have to keep up with more stuff. Base multi, 1 core multi, 2 core multi, 4 core multi....ughh pain in the arse.
The sleep states allow the processor to lower the multiplier, temps and voltage when its idling. That's a good thing, the less time spent at full power the better.”
“Update on my previous problem getting this message every minute: "Power Surge On Hub Port" A USB device has exceeded the power limits of the hub port..... Turns out all I had to do was reset my cmos and it went away. Spent hours trying everything else. I should have known better because in my case it all started after I reset my cmos. Hopefully this info will save someone else time.”
“BTW if you freeze while your board can't clear CMOS, there is a way you can hit the power button a certain way to engage safe mode in the BIOS. I think you hit power, then let go and hold back the power switch while the system is turning on, then let go after it shuts off and hit on again like 20 seconds later.”
"24/7 for Sandy Bridge: Keep volts under 1.35v, and temps under 85C for max peak."
“just use DVID and the vcore will throttle down during idle, the LLC wont affect it much.
"Phase control determines whether the VRM will work to favor efficiency or performance, so extreme performance can result in a warmer VRM, but might be good for Ln2 OC.
Voltage response determines how fast the voltage changes for different load states. You might want to leave that on fast. but leave phase performance on auto.”
“Also try taking BCLK to 100.00 set, not auto, auto sets it to like 100.9 which causes 90% of the stability issues, the other 10% are caused by un updated windows installations, as if you go right now and change your BCLK then it will help, if it doesn't you can switch to a windows XP install and you wont have the BDOS anymore”
“Did you try a proper CMOS clear? Take out the batter, unplug the power plugs, and then short the battery connector leads and then hit clear CMOS and hold it down.”
“yea just download it and update. GIGABYTE doesn't do anything to the drivers.”
“Sleep mode is tricky and one cannot be so fast as to blame any single thing until they find it. Windows / Device Manager Power Management settings / Power options settings.....You just don't know what it is until you nail it.
A good operating Sleep Mode is one function I must have. In all my computing years I have not had a PC that did not need to have a sleep issue ironed out"
“You can just leave turbo on auto, but changes from BIOS to BIOS vary thus i recommend people disable it, it is easiest. Also with it disabled current and watts are maxed out automatically. Messing with the turbo mode is for people who want to get more advanced with it, and like for someone who wants to limit the current and watts, I talked to an intel dude and he actually was saying that some people want to limit those things while overclocking, i really didn't know what to say to that.”
“Enable EIST and set Windows power management to balanced. It will downlock.”
“Offset values add and subtract from VID. Use Core Temp to figure out your current VID.”