I have looked over the specs at the Asus site and checked the
comparison sheet and I still can't tell what the differences are
between these 2 boards.
Can someone enlighten me before I go and make my purchase
Thanks
The audio is slightly different, as one uses Realtek 8 channel
and the other uses ADI 6 channel. But, some of these 8 channel
implementations, steal from other interfaces, to get pins on the
chip to carry the other two channels, so read carefully to find
out which interface is shared with the two extra channels. In
short, there is no appreciable difference between the two
onboard audio solutions - if you are an audiophile, they will
both be wanting, in terms of noise floor.
If you are an overclocker, the single biggest difference, is
the possibility of "video artifacts" at high overclock (CPU
clocked at 250MHz, instead of the normal 200MHz for an FSB800
processor). You can read the details here:
http://www.abxzone.com/forums/showthread.php?t=62275
As for which exact models of Asus boards, with 865PE, are affected,
that thread might not make clear for you. So, I would say the
P4C800 offers the _chance_ of fewer problems if overclocking.
It is possible another vendor's 865PE boards don't have the
same problems, and that thread might mention some of them.
For the LAN thing, the difference looks like this:
P4C800-E P4P800-E
--------------- ---------------
| 875 | | 865 |
--------------- ---------------
| | |
266MB/sec 266MB/sec 266MB/sec
| | |
Intel Southbridge Southbridge
Gigabit | | | |
LAN SATA+ 133MB/sec SATA+ 133MB/sec
PCI Bus PCI Bus
| |
+-- Firewire +-- Marvell
| etc. | Gigabit
PCI | LAN
slots |
+-- Firewire
| etc.
PCI
slots
In both cases, there are a couple of interfaces in the Southbridge
that have access to the 266MB/sec bandwidth. That is what the
"SATA+" is referring to. The "Firewire etc." refers to onboard
peripherals, which are fairly similar on the two boards.
Oh, and if you are an overclocker, the P4C800-E is annoying.
I tried overclocking it, and it does not automatically recover
from an overclock. I had to clear the CMOS, to escape from each
overclocking experiment, and then re-enter all my settings!
So, I disable the Promise controller each time, etc., after
every CMOS clear operation, and that to me is a PITA. (I picked
up a A7N8X-E a few days ago, and the overclock recovery mostly
works on that one. The best part of the BIOS on that board, is,
even if you have to power off to get control of the board again,
all your settings are still there, so in a matter of 30 minutes,
I had figured out enough settings for a decent start at
overclocking. So far, I haven't had to touch the Clear CMOS
jumper on the A7N8X-E. I've stopped trying to overclock the
P4C800-E.)
HTH,
Paul