Hi guys, another noob question from me on tech stuff.
i want to know if all motherboards are the same dimensions? because i have a shuttle like this http://au.shuttle.com/product_detail.jsp?PI=505#
so i want to make sure if i buy a MB it will actually fit.

Why you ask? Well I picked up that WD HDD you may recall from this thread
http://qgl.ausforums.com/index.php/439207/?agn=thread&id=2846406

did this in the hope it would fix my issues with an old PC (about 5 years old now on XP) that i just wanted to fix enough to use in my back games room for music and some minor netwalking, as the consensus was that the old HDD was in need of replacement. it would run for a while then it was regularly not loading windows.
but even after 2 days of new HDD i have had the same issue a few times and it's a bit frustrating so since the HDD install went so well i thought i'd dabble with a new motherboard in the hope this is the problem.
now i'm just doing this as a bit of a hobbyist because i find it rewarding to pull it apart and get it back together and working so i don't need the fanciest MB. i just want to make sure i'm buying the right thing.
So what do i need to look out for?

cheers again

ok thanks whoop
so i obvioulsy need to look for a Shittel specific board i guess.
anything else to be wary of?

From wikipedia here the different form factors (sizes):

WTX 356 × 425
AT 350 × 305
Baby-AT 330 × 216
BTX 325 × 266
ATX 305 × 244
EATX (Extended) 305 × 330
LPX 330 × 229
microBTX 264 × 267
NLX 254 × 228
Ultra ATX 244 × ?
microATX 244 × 244
DTX 244 × 203
FlexATX 229 × 191
Mini-DTX 203 × 170
EBX 203 × 146
microATX (min.) 171 × 171
Mini-ITX 170 × 170
EPIC (Express) 165 × 115
ESM 149 × 71
Nano-ITX 120 × 120
COM Express 125 × 95
ESMexpress 125 × 95
ETX/XTX 114 × 95
Pico-ITX 100 × 72
PC/104 (-Plus) 96 × 90
ESMini 95 × 55
mobile-ITX 60 × 60

http://en.wikipedia.org/wiki/Computer_form_factor

we weren't helpful at all