Official GIGABYTE Forum

z77 ud5h bios reset

z77 ud5h bios reset
« on: May 23, 2012, 08:39:25 am »
so I've been playing with my ram, and noticed that whenever I turn off the computer and turn it on, the dram voltage gets reset to 1.5 (my stock ram is 1.35)  I am running the f7 bios.  Also, is there somewhere I can find out what the subtimings mean?  for example tWL?  is that tWCL?

Re: z77 ud5h bios reset
« Reply #1 on: May 23, 2012, 06:09:08 pm »
i've tried the usual such as
1. clear cmos
2. unplug power supply, hold power button, cmos reset
3. unplug cmos battery
4. a combination of all the above
5. unplug all usb except keyboard
6. try 1.55 voltage, and 1.45 voltage
7. re-update bios
8. load optimized settings and then reboot and then retry other voltages
8. and combinations of all the above.

nothing changes except the dram voltage and nothing works.  I mean if i dont mind the 1.5v the board works great, but thats a big if when the memory is supposed to run at 1.35v

Re: z77 ud5h bios reset
« Reply #2 on: May 23, 2012, 06:52:09 pm »
also tried every bios from f4 (stock) to f7

Re: z77 ud5h bios reset
« Reply #3 on: May 23, 2012, 09:08:39 pm »
also tried to up the blck a tiny bit, lowering it, using backup bios......maybe time to exchange......bleh

Dark Mantis

  • *
  • 18405
  • 414
  • 10typesofpeopleoneswhoknow binaryandoneswhodont
    • Dark Mantis
Re: z77 ud5h bios reset
« Reply #4 on: May 23, 2012, 09:25:04 pm »
Hi

Have you synchronised the two BIOS chips as recommended ?
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

Re: z77 ud5h bios reset
« Reply #5 on: May 23, 2012, 09:51:23 pm »
how do i do that?

Re: z77 ud5h bios reset
« Reply #6 on: May 23, 2012, 10:24:49 pm »
oh and alt f12 doesnt do it

Re: z77 ud5h bios reset
« Reply #7 on: May 23, 2012, 10:34:49 pm »
tried on 3 seperate keyboards, one wifi, one mechanical (simple) usb, and one microsoft usb

Re: z77 ud5h bios reset
« Reply #8 on: May 23, 2012, 10:35:28 pm »
when i push alt 12, it just asks me to choose boot device, and when i choose the usb with the firmware it says remove device and push any key to continue and then boots to windows

also tried ctrl f12 and alt+ctrl f12.  most of the time it just continues to boot to windows, once in a while it'll ask me to choose boot device, and no matter what i choose it boots to windows.  Where is this documented/recommended?  I searched and they were all regarding older motherboards

should i set my main bios to f4 (stock) to match my backup bios?  Can i just manually sync both bios by booting into each one and modifying the settings?
« Last Edit: May 23, 2012, 11:08:15 pm by Quicksilver »