Z77x-UD3H and G.Skill ARES F3-1866C10-8GAB

[frag85]

I have a Gigabyte Z77x-UD3H (F18 bios) and 3570k with 16GB of G.Skill memory; part # F3-1866C10-8GAB. The memory works but I can not change any settings. Video cards are 2-GTX275s in SLI if that helps.

The bios recognized the RAM and set its default-rated frequency to 1866mhz 10-11-10-30 timings. All voltages are manually set to defaults (VRAM@1.5, VTT@1.05, MC@.925) and everything is stable; passes memtest v4.20 for 8 hours overnight and was stable for over a week of uptime in Win7 with no crashes or odd behavior.


The problem is changing BIOS settings do not take effect on this RAM. Even the XMP profiles do not change anything. The bios, memtest and windows still report 1866mhz, 10-11-10-30.

I have 2 other sets of ram that settings work fine with (Corsair XMS3 and OCZ Gold). Between each set I reset the BIOS via the bios reset button on the motherboard in addition to factory defaults in the bios. I tired the bios that shipped with the board, F11, and the latest non-beta bios, F18. Same result.

[wazza300]

what about the latest beta????????????

http://forum.giga-byte.co.uk/upload/...-UD3H_F19e.zip f19e?

[frag85]

I don't want to run a BETA bios and the only notes say Support Windows 8.

[wazza300]

beta fixed alot of things for me with this board,you can always flash back,they are 100% safe to use and win8 means it supports windows 8 aswell as win7

[frag85]

Reflashing F18 seemed to fix this. Strange that resetting the bios via mobo and resetting defaults in the bios did not work.

[wazza300]

thats good then,seems it didnt flash correctly 100% before? idk