difference between

[grylion]

Hi All,
What is the difference between the P4C800-E Deluxe and the P4C800 Deluxe.
Thanks Peter

 

[Paul]

Hi All,
What is the difference between the P4C800-E Deluxe and the P4C800 Deluxe.
Thanks Peter

The 875 Northbridge has two 266MB/sec busses on it. The 865 has only
one 266MB/sec bus. When the original P4P800 and P4C800 came out,
they each only used one 266MB/sec bus. The second bus on the P4C800
wasn't connected.

When a Gigabit Ethernet chip sits on the PCI bus, it is limited to
the bandwidth of the PCI bus. That would only be an issue if you
were constructing a departmental server, as disks and Ethernet
could both be using the bandwidth of that bus at the same time.

After there were complaints that Asus wasn't taking advantage of
the second 266MB/sec bus, Asus came out with the P4C800-E. That
board connects an Intel Gigabit Ethernet chip to the second
266MB/sec bus. That allows Southbridge mounted disks and the
Ethernet to be used simultaneously, with less impact on one
another, than there would be on a P4C800.

In a typical desktop application, I doubt you could see the
difference between the boards. For example, I found a paper
a few days ago, that said Win2k could transfer about 300Mbits/sec
with its TCP/IP stack. I did a less than optimal test on my
two gigabit equipped computers (one machine a P4C800-E,
connected directly to a A7N8X-E, and the A7N8X-E had
ICS enabled), and in an FTP transfer, the best I could get is
46MB/sec transfer rate (using RAM disks at either end of the
transfer). That is well shy of a full Gigabit rate. How well
that works will depend on the OS used. The 46MB/sec rate, could
have been handled by the P4C800 just as easily as with a P4C800-E.

HTH,
Paul

 

[aq]

The 875 Northbridge has two 266MB/sec busses on it. The 865 has only
one 266MB/sec bus. When the original P4P800 and P4C800 came out,
they each only used one 266MB/sec bus. The second bus on the P4C800
wasn't connected.

When a Gigabit Ethernet chip sits on the PCI bus, it is limited to
the bandwidth of the PCI bus. That would only be an issue if you
were constructing a departmental server, as disks and Ethernet
could both be using the bandwidth of that bus at the same time.

After there were complaints that Asus wasn't taking advantage of
the second 266MB/sec bus, Asus came out with the P4C800-E. That
board connects an Intel Gigabit Ethernet chip to the second
266MB/sec bus. That allows Southbridge mounted disks and the
Ethernet to be used simultaneously, with less impact on one
another, than there would be on a P4C800.

In a typical desktop application, I doubt you could see the
difference between the boards. For example, I found a paper
a few days ago, that said Win2k could transfer about 300Mbits/sec
with its TCP/IP stack. I did a less than optimal test on my
two gigabit equipped computers (one machine a P4C800-E,
connected directly to a A7N8X-E, and the A7N8X-E had
ICS enabled), and in an FTP transfer, the best I could get is
46MB/sec transfer rate (using RAM disks at either end of the
transfer). That is well shy of a full Gigabit rate. How well
that works will depend on the OS used. The 46MB/sec rate, could
have been handled by the P4C800 just as easily as with a P4C800-E.

HTH,
Paul

Not sure about what Paul said, partly because I do not have enough
technical knowledge.

I bought a used P4C800, no E, no Delux; it is quite simple but the POST
screen
comes very slowly. It also has trouble to recognize some LAN card.

The P4C800-E Delux is much faster in response, POST, and very stable.
For ordinary user, perhaps P4P800 Delux is best in terms of cost and
eprformance.

 

[grylion]

Thanks for the very informative reply.
Peter

Not sure about what Paul said, partly because I do not have enough
technical knowledge.

I bought a used P4C800, no E, no Delux; it is quite simple but the POST
screen
comes very slowly. It also has trouble to recognize some LAN card.

The P4C800-E Delux is much faster in response, POST, and very stable.
For ordinary user, perhaps P4P800 Delux is best in terms of cost and
eprformance.