DFI Rev. AD0 Ultra-D/Sli-D/Sli-Dr..........

**s7e9h3n** · 12-28-2005, 06:42 PM

As you all may or may not know, DFI's Rev. AD0 is the first revision in which there has been a major HW change. In past revisions, DFI claimed they were the exact same boards only shipping with different bioses. I just picked up a Rev. AD0 Ultra-D and there are obvious physical differences this time

......Here are a couple of pics comparing the older Rev. AA0 Ultra-D with the newer Rev. AD0. I'll run some comparison tests later:

Rev. AA0:

Rev. AD0:

Note the numbers in the first pic:

1. The value of this mosfet has changed
2. The orientation of this voltage regulator is changed (OPB reports that the measure points on this IC aren't the same as before)
3. The cap here has moved to a new spot

Also, the the Rev. AD0's seem to have changed/upgraded at least 50% of the capacitors located around the pci and memory slots. Initial reports have the Rev. AD0's outperforming all prior revisions. More to come........

**Calderbrae** · 12-28-2005, 06:56 PM

Where did you pick this board up? I just received a SLI-DR from NewEgg and its AB0 rev.

**Pyr0** · 12-28-2005, 06:59 PM

thanks s7e9h3n, i've been trying to find out what the differences are in this new revision

although i've just ordered an expert board

**dogsx2** · 12-28-2005, 07:21 PM

On 11/13 and 11/23 I had a rma and bought another Ultra-d from Newegg. Both mb's are the new revision. There is a difference in the HTT. Both boards will do 400+ while the older Ultra's I had would only do around 340/345. I don't want to change mb's like I did before I got them.

**thunderstruck!** · 12-28-2005, 07:41 PM

Keep us posted stephen. I just don't know which one I should get, a new SLI-DR or the Expert...

**ozzimark** · 12-28-2005, 07:51 PM

Originally Posted by s7e9h3n

Note the numbers in the first pic:

and another obvious one, an extra cap between the ram slots. i've been plotting a way to get one of these for a while now. i guess it'll have to just be buy one, sell the old one :p

**IvanAndreevich** · 12-28-2005, 08:14 PM

Who the heck needs 400 HTT?

**afireinside** · 12-28-2005, 08:20 PM

Where do find the revision ><

**da-key** · 12-28-2005, 08:23 PM

I have the new one.

Its in stock on the Ultra-D pretty much. Egg.

Great board.

**ozzimark** · 12-28-2005, 08:37 PM

Originally Posted by IvanAndreevich

Who the heck needs 400 HTT?

it's not that as much as improved power regulation that'll probably allow your ram to run a wee bit better

**dogsx2** · 12-28-2005, 08:38 PM

Originally Posted by IvanAndreevich

Who the heck needs 400 HTT?

I'm hoping to work my way there with my 144.

**ozzimark** · 12-28-2005, 08:53 PM

you should be able to break that

not stable, but this is the max of my 146 + dfi nf4 A.C0
http://valid.x86-secret.com/show_oc?id=46609

445 seems to be rock solid. i'm pretty sure it's a cpu limitation, not mobo, as chipset and ldt voltage don't do anything for it.

**5-Clicks** · 12-28-2005, 09:32 PM

Wow! I just got rid of my older Ultra-D just in time... Just might have to pick one of these up again.

**eva2000** · 12-28-2005, 10:10 PM

my DFI NF4 Ultra-D is several months old and is R.AD0
my DFI NF4 UT SLI-DR is R.AB0

don't notice much diff at all performance wise....

nice eye for detail you have there

**TheMeatFrog** · 12-29-2005, 05:24 AM

Very interesting, looking forward to the rest of the comparison.

**SlackeR** · 12-29-2005, 06:17 AM

I have an AD0 at my side too

Does it fix the VTT issues?

**Highland3r** · 12-29-2005, 06:37 AM

Just got a new SLI-D in the post yesterday, looks like a rev AD0

Fingers crossed she clocks good

**persivore** · 12-29-2005, 06:54 AM

It looks like the 'MOSFET' which has been replaced/re-orientated is the Vtt regulator, so DFI might have tried to sort out Vtt on this new rev board

Edit: Can someone get the part number off the new Vtt regulator.

**Supertim0r** · 12-29-2005, 08:04 AM

got 3 of thoses...ultra-d ad0
better clocker than my previous ab0

**SlackeR** · 12-29-2005, 08:30 AM

Richtek
R19173A
CM57D815
For the one that is orientated differently (#2 in stephens post).

**K.I.T.T.** · 12-29-2005, 08:40 AM

Seems like I have an AD0 as well

**STickGuy** · 12-29-2005, 10:36 AM

Got my Board yesterday from the and it is a AB0 Version

**TheMeatFrog** · 12-29-2005, 10:41 AM

hmmm $135 for a ADO Ultra-D from the egg is very tempting.

Chop chop on the ADO vs Expert comparison!

**terrordemon** · 12-29-2005, 11:09 AM

dont think anyone answered the guys question before, but where do we find out what revision mobo we have? i ordered my ultra-d mid december, i hope its ad0

**thunderstruck!** · 12-29-2005, 11:12 AM

Originally Posted by terrordemon

dont think anyone answered the guys question before, but where do we find out what revision mobo we have? i ordered my ultra-d mid december, i hope its ad0

It's on a sticker that's located behind the PCI slots. You'll only know once you get the board in your possession.

Speaking of the new revision- anyone seen it in the NF4 SLI-DR's?

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