F3-10666CL8D-4GBHK Timing

[MartiniTime]

Just finished a new build, my first, with a GigaByte GA-880GMA-UD2H and a 2x2 set of the DDR3-1333 listed above.
The board auto selected 9-9-9-24 timing at 1333 .
After everything was up and running I changed timing in bios to 8-8-8-21-2T. Wouldn't post, I got the three beeps and an error message it was due to overclocking.
Changed back to Auto, and 9-9-9-24. Should I just leave it there?
Thanks

[GSKILL TECH]

Do you have the latest BIOS? It should work with those timings.. try one stick at a time to see if one is causing the problem.

Thank you
GSKILL TECH

[MartiniTime]

Bios version F5, 9/30/2010, is current.

My DRAM voltage, set by AUTO in bios on MB, is 1.6v. It chose 9-9-9-24-1T
Balance of AUTO settings:
Memory Clock : x6.66
TwTr Timing: 5T
Trfc : 160ns (for the two slots I'm using, 2 and 4)
Write Recovery Time: 10T
Recharge Time: 5T
Row Cycle Time: 33T
Ras to Cas Delay: 4T

If I change only to 8-8-8-21 the system will not boot.

Are there additional settings I must change to tighten the timings?

[Tradesman]

Command Rate should be 2T...what is your CPU/NB and vCore at?

[GSKILL TECH]

Test one at a time to see if one has a problem. If all fails, send them in for RMA and try a new kit.

Thank you
GSKILL TECH

[MartiniTime]

Tman, the voltages are:

Vcore: 1.3500v
NB Voltage Control: 1.200v

I did try 2t command before, same result.

In CPU-Z, where I saw the speed is low, the SPD columns for the two sticks shows the same for both sticks.

Really don't think it's a bad stick issue. I simply don't know enough about bios settings.
And while Gigabyte is reputed to build a good board, this IS version 1.0 of the Award Bios.

Oh, and the last computer I built myself was an 8080 based machine.

Thanks for helping out an old guy, who happens to be right up I-10 (Phx),

[Tradesman]

Might try the NB @ 1.25 - and have you tried the sticks in slots 1-3?..........Planning a trip up that way in a few weeks, going to hit Fry's Electronics, Cabela's and BASS Pro Shops