The Intel 945P Express
chipset is Intel's latest mainstream performance chipset and it supports every
Socket 775 processor on the market from the Intel Pentium 4/D/XE, Celeron D
right on through to the Intel Core 2 Duo. FSB's supported include 1066, 800 and
533 MHz.
In this instance the 945P Express is paired with the venerable Intel ICH7
Southbridge, rather than the updated ICH8 core logic. The ICH7R brings RAID
0,1,5,10 into the fold, but the Epox EP-5P945 Pro motherboard does not use this
chipset.
Given the intended markets this board is suited towards, RAID
1 would have been a really nice feature to put
into operation. The extra measure of data redundancy a RAID 1 array brings to
the table is hard to ignore, especially considering how affordable a decent pair
of 250GB SATA hard drives is.
Intel kept DDR2 memory support steady at 667MHz with the 945P Express chipset
(although the Epox EP-5P945 Pro unofficially has a 800 MHz memory multiplier),
putting it at a slight disadvantage to AMD's Socket AM2 Athlon64 processors.
Intel calls the new memory controller FMA or 'Fast Memory Access' and it gives
the system a maximum theoretical bandwidth of 10.6GB/s with DDR2-667 memory.
The detailed feature breakdown for the Intel 945P chipset is noted below.
Intel 945-Series Chipset Feature
Breakdown |
|
Intel 945GT Express |
Intel 945G Express |
Intel 945GZ Express |
Intel
945P Express |
Intel 945PL
Express |
CPU |
m479-pin Core Duo, LGA775 Core 2 Duo |
LGA775 Core 2 Duo |
LGA775 Core 2 Duo |
LGA775 Core 2 Duo |
LGA775 Core 2 Duo |
Front Side Bus (FSB) |
667/533 MHz |
1066/800/533 MHz |
800/533 MHz |
1066/800/533 MHz |
800/533 MHz |
Intel Flex Memory Technology |
Yes |
Yes |
Yes |
Yes |
Yes |
Dual Channel Memory Support |
DDR2 667/533/400 |
DDR2 667/533/400 |
DDR2 533/400 |
DDR2 667/533/400 |
DDR2 533/400 |
Maximum Memory Capacity |
4GB |
4GB |
2GB |
4GB |
2GB |
Integrated Graphics |
Gen 3.5 |
GMA 950 |
GMA 950 |
- |
- |
|
PCI Express x16 |
1 |
1 |
- |
1 |
1 |
|
PCI Express x1 |
4 |
4 |
4 |
4 |
4 |
Intel Matrix Storage Technology |
Yes |
Yes |
Yes |
Yes |
Yes |
|
SATA/IDE HDD |
2/1 |
4/1 |
4/1 |
4/1 |
4/1 |
|
SATA Speed |
1.5Gb/s |
3Gb/s |
3Gb/s |
3Gb/s |
3Gb/s |
|
RAID |
- |
0, 1, 5, 10 (with ICH7R) |
0, 1, 5, 10 (with ICH7R) |
0, 1, 5, 10 (with ICH7R) |
0, 1, 5, 10 (with ICH7R) |
|
Hard Drive NCQ |
Yes |
Yes |
Yes |
Yes |
Yes |
USB 2.0 Ports |
8 |
8 |
8 |
8 |
8 |
PCI Masters |
6 |
6 |
6 |
6 |
6 |
Audio |
High Definition Audio (Azalia) |
High Definition Audio (Azalia) |
High Definition Audio (Azalia) |
High Definition Audio (Azalia) |
High Definition Audio (Azalia) |
|
|
|
|
|
| |
The Intel 945P Express is a mainstream chipset, and thus only supports a single PCI
Express x16 graphics card. The Epox EP-5P945 Pro does have a second physical PCI
Express x16 slot, but that operates at PCI Express x4 speeds and is using the Southbridge PCI Express lanes.
The ICH7 southbridge includes an additional four PCI Express lanes which
are typically divvied up between PCI Express x1 slots and Gigabit network
adaptors. The ICH7R southbridge would add an additional two PCI Express x1
devices, for a total of six, if it was used here.
A dedicated 2GB/s I/O bus connects the Intel 945P Express
Northbridge and ICH7 Southbridge together, which might be a little tight if you
have many high bandwidth devices installed but should be just fine for the
average user.
The Epox EP-5P945 Pro motherboard comes installed with
the ICH7 Southbridge which includes all the necessary goodies, though in slightly smaller quantities than the ICH8 supports. There are four
3GB/s Serial ATA II channels as well a 7.1-channel Intel Azalia
High Definition audio codec, eight USB 2.0 ports (split between the rear I/O and headers),
4 PCI Express x1 lanes and six PCI bus masters. It's important
to note that Epox uses a 5.1 channel non Azalia audio solution for the EP-5P945
Pro.
Noticeably lacking from the Intel 945P Express and ICH7
chipsets are the standard allotment of two parallel IDE channels. The ICH7
support one alone, regrettably. Gone are the days of two UDMA ATA100 IDE connectors
per motherboard as a stock option, instead Intel has curtailed support to
a single IDE channel (supporting two IDE devices) which is really only good
for optical drives. In response to this standalone IDE controllers have made it
onto some motherboards, though generally only the enthusiast oriented ones. Like you, we're still not ready
to give up on our collection of IDE hard drives just yet, but we
aren't buying any new ones either.
Next up, we take a tour of the Epox EP-5P945 Pro
motherboard's highlights.