one thing i noticed with the "T" version board, the first bios would constantly go into an endless re-loop boot if you exceeded an "X" amount of bios parameters with an associated overclock attempt.

my recommendation is to set the a "very" loose "Static tRead value", save, and then re-enter the bios to do the same thing for CAS, RAS to CAS and Precharge....once you have the loose settings, raise the voltages to a moderate value and save!...once you have your supporting cast set up you can start raising the FSB and adjusting the memory strap...be advised, if you have a 1333 mhz processor, you are better off working in the "B" range of the memory straps, which is the 1333 mhz memory strap...that is the easiest strap to overclock since it is working at the same frequency as your cpu system bus speed...the next memory strap to try is the "D" range...that is the 1600 mhz memory strap, which should have looser latencies.

the other thing that i noticed with memory...if you have the latest DDR2 with "XMP Profiles" built into the sticks via the 'SPD' chip, you will need to "disable" that feature in "MIT" section...if you don't do that, it will conflict with your manual memory settings that you are trying to work.

OK this new piece is not giving those old issues anymore.
I am able to set FSB just fine.

Currently at 415Mhz FSB.
CPU @ 3.73Ghz # 1.28v, Ram at 1040Mhz. FSB voltage +0.05 and vMCH = +0.10.

I am not able to boot at 420 though even with as much as +.25 FSB and +0.400vMCH even when i am using 2.00B divider where ram is running @ just 840 Mhz. CPU is fed 1.45v just to make sure thats not an issue. And this board still wont boot with anything higher than 415Mhz.
The cold boot sometimes results in successful boot @ more than 415Mhz with prime 1+ hour stability. But then PC wont restart. It quits windows and just sits with power on and does not boot.
I have to shut it down by switching off the power and reboot where it boots again back to default oc fail settings.

i am done for today. Will play with this board tomorrow.
Gigabyte surely needs to do something with the bios of the DDR2 version of this board.

be advised that the "static tRead value" and CAS settings are critical to boot at a higher FSB...what cpu and memory are you using?

i have set static tRead to 8. Will anything higher than this help?

And its E8400 + Gskill F2-8000CL5D-4GBPQ, the one with new powerchip IC.

The chip easily does 4.3G on Abit IX38 Quad GT.

i would try 9 or 10 to see if that has any impact on getting it to boot at the higher FSB.

you can all also come over here to get assistance on the ddr2 board: Official Gigabyte X48/X48T-DQ6 bios+info thread - Page 8 - XtremeSystems Forums

darn! sorry to hear that!...i always wince when closing the socket clamp down and pressing the lever into the locking postion...it feels like i am about the bend or break something.

well, at least you are now ready for the IP45 Pro or try some other X48 brand...LOL

Aye feel like a cowboy with no bloomin horse at the minute. Waiting to see what comes back from gigabyte. If i can get this repaired well & good, but if I have toi get a new board I may as well try something else. DFI LANparty UT X48-T3RS is due out in a week - 29th. Abit is rumoured as ever to be bringing on the x48 max. Then as you say p45 next month sometime.

So any way looks likw a quiet time for a while

Am still tweaking & testing with my needle & eyeglass. From head on pins look pristine & alignment is good, it's just that 1 pin i think that's screwing it. I turn it on & it posts for about 5 seconds then dies & repeats. Just in case the OC recovery had screwed I pulled battery last night , but did nowt.

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sounds like a bigger problem than a socket problem...if the socket was the problem, it would not even give you any video...been there, know that!

i suspect there is something else.

are you sure that the xeon you have is suppose to work in that 775 socket?

i think you have the wrong xeon processor for this board...i just checked the cpu compatibility page for this board and it does not show 5100 series:

GIGABYTE - Support - Motherboard - CPU Support List - GA-X48T-DQ6