** Official ** Gigabyte UD3 P45 Series -- EP45-UD3 / EP45-UD3R / EP45-UD3P

[DemonEyez]

Has anyone tried the 266 strap with 2.50A dividers at 489fsb? Is it possible to run PL 8 with this setup? Can someone post a stable template for 489x9?

I read a few pages back that 2gb dimms (g.skill 9600) have problems with the mch going above 1.44v at the 333 strap with 2.4B. Has this been resolved yet?

For the life of me I cannot seem to get 489x9 stable with the 266 strap and 2.5A regardless of changing the refs and voltages.

At the moment i'm testing FSB 490 - 506 range and running with 266 strap and 2.50A divider so that my 2x2GB OCZ Flex PC9200 is running 1233 - 1250Mhz.

For that to accomplisch my ram must be running with 6-5-5-15 and 2.14v
CL 5 is a nogo with this kit at those timings and voltage is below 2.18v.

PL is still at level 9, but after succesfully testing 1225 - 1266MHz last night, i'll begin testing it with PL 8.

But all of this was only doable after setting some subtimigs just right. Before I found the 'magic combo', I was experiencing the same instability as you describe. I tried everything obvious like changing voltages, ref's and dividers, and almost had given up on it. Then I started changing subtimings...

This is what I'm using for 1225 to 1250MHz and 6-5-5-15 @ 2.14v

All Precharge to Activate..................6 ( 7 if tRP is 6 )
Refrecsh Cycle Time (tRFC) ............56
Write to Percharge delayed ............18
Write to read Delayed (tWTR)......... 14
Act tot Act Delayed (tRRD)..............6
Read toWrite Delay (tRD_WR)..........10
All Precharge to Refresh Delay .........6 ( 7 if tRP is 6

Now,if one in bold is off , then LinX will error immediately. i don't know what the hell is going on, but perhaps it has something to do with the fact that there have been issues with OCZ kits and this board.
Anyways, finding the correct settings seems to have resolved the issue for me.

Oh, one more thing. i'm running with my Flex modules installed in the red slots (slots 2 and 4), it seems to help a bit. I'm able to boot with 2.40B divider (5:6) and MCH set to 1.40v
But i've found that my modules runs alot more stable using the 266 stap and 250A divider (4:5), in other words; 1250Mhz with 2.50A divider is (far) more stable than 1200MHz and 2.40B divider on my system.