Gigabyte GA-H67N-USB3-B3 Problems :(

jimbo19 · 8 Apr 2011 at 19:49

I have just built a new media centre in antec isk case using a GA-H67N-USB3-B3 with an intel i3 2100t and ssd drive for boot. I have some serious issues however with the build

Installed win7 professional on it and then ran perfomance test when loading 3d textures system hung and just get coloured flashes on tv (using the hdmi port). Managed to get it to do the test by dropping my ddr3 1333 down to 800. However after anywhere between 5 minutes and 2 hours same thing happens again and only option is to power off and on again.
Thought perhaps it was my memory so bought some 1.5v crucial ddr3 1333 - again having same issues anywhere between 5 minutes to 3 hours , looks like the hdmi output goes screwy and then locks up whole PC. I have tried 2 different tv's now as well as different hdmi cables , and even 3 different psu's

I am running F3 bios - does this sound like a DOA system board or is there a beta bios that may fix this ??

jimbo19 · 8 Apr 2011 at 21:50

memtest runs fine , all drivers up to date
it's the second lot of ram that I have tried

1Day - what ram did you use ?

jimbo19 · 8 Apr 2011 at 22:31

using inbuilt intel hd graphics

jimbo19 · 8 Apr 2011 at 22:48

Yep running mine in AHCI mode
Are you having the same issues in AHCI mode as I am then ?
Or are they different symptoms

jimbo19 · 8 Apr 2011 at 23:00

mmmm , beginning to wish I'd bought the intel one now

jimbo19 · 8 Apr 2011 at 23:23

Checked the motherbpard on crucial website for compatibility and ram I bought is compatible (CT2KIT25664BA1339) loathe to try another 3rd set of ram in it but tearing what little hair I have left out now . As I say tried another set before again 1.5v 1333 and same issue.

jimbo19 · 9 Apr 2011 at 15:54

Unless can find solution over the weekend will RMA it and try and find the intel version I think

jimbo19 · 9 Apr 2011 at 16:59

No problem on mine with os install on asax as AHCI , its just the stability

May try fresh install in XHD and just see if it stays stable

jimbo19 · 10 Apr 2011 at 06:38

Just a quick update:
One of the mods over on tweakforums in gigabyte section suggested I up the graphics core voltage in bios or lower clock slightly (from default)
I upped the voltage only slightly and system has now been stable for 10+ hours
So perhaps the voltage regulation isn't quite as it should be on these boards. Just a thought for anyone else struggling with this particular board

jimbo19 · 11 Apr 2011 at 18:36

Yes GPU clock , but I only upped the Voltage a tiny bit.
The Gigabyte guru's reckon it is because I am using a 40" LCD so requires more power to drive it via hdmi

jimbo19 · 12 Apr 2011 at 23:10

Now had this confirmed with another user of this board with exactly the same problem , the fix is to up the GPU voltage in MBIT in bios just one increment will do it. hopefully gigabyte will change this in next release of bios so other users dont RMA the board