Layout
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Here's where it gets easy for me. The 915-A's layout is identical to that of the 915P-A. You can find my analysis of the 915-A's layout, here. The only differences lie in the components placed for the layout. There's a 915GV under the main heatsink, not a 915P. The 915-A uses Realtek's 8110C, not 8110S. There's ALC880, not C-Media 9880, for audio duties. Finally, in terms of signal routing the PEG16X slot is obviously connected to the ICH6, not the 915GV MHC. Otherwise, you could mistake the two if the 915-A didn't have its stickers on the PEG16X Lite and AGP Express slots in place.
Sorry for cheating, but common advertising sense dictates that if you've said it before already, say it again not by cut and paste, but by making the user click to that page. I do have an extra picture for you, though, before you clickety click.
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