nForce4 SLI Roundup: Painful and Rewarding
by Wesley Fink on February 28, 2005 7:00 AM EST- Posted in
- Motherboards
DFI LANParty nF4 SLI-DR: Features and Layout
Specification | DFI LANParty nF4 SLI-DR |
CPU Interface | Socket 939 Athlon 64 |
Chipset | nForce4 SLI (single chip) |
BUS Speeds | 200MHz to 456MHz (in 1MHz increments) |
PCI/AGP Speeds | Asynchronous (Fixed) |
PCI Speeds | 100MHz to 145MHz in 1MHz increments |
Core Voltage | Auto, 0.8V to 1.55V in 0.025V increments (Normal) PLUS *104%, 110%, 113%, 123%, 126%, 133%, 136% (Special - to 1.85V) |
CPU Startup Voltage | Startup, 0.825V to 1.550V in 0.025V increments |
DRAM Voltage | 2.5V to 3.2V in 0.1V increments (3V jumper) 2.5V to 4.0V in 0.1V increments (5V jumper) |
Chipset Voltage | 1.5V, 1.6V, 1.7V, 1.8V |
Hyper Transport Ratios | Auto, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0 |
LDT Bus Transfer | 16/16, 16/8, 8/16, 8/8 |
LDT Voltage | 1.2V, 1.3V, 1..4V, 1.5V |
CPU Ratios | Auto, 4x to 25x in 0.5x increments |
Cool'n'Quiet MAX FID | Auto, 8.0 to 13.0 in 0.5x increments |
DRAM Speeds | Auto, 100, 120, 133, 140, 150, 166, 180, 200 |
Memory Command Rate | Auto, 1T, 2T |
Memory Slots | Four 184-pin DDR Dual-Channel Slots Unbuffered ECC or non-ECC Memory to 4GB Total |
Expansion Slots | 2 x16 PCIe Slots 1 x4 PCIe 1 x1 PCIe 2 PCI Slots |
SLI Setup | Six 16-pin Jumper Blocks |
Onboard SATA | 4-Drive SATA 2 by nF4 PLUS 4-Drive SATA by Sil3114 |
Onboard IDE | Two Standard nVidia ATA133/100/66 (4 drives) |
SATA/IDE RAID | 4-Drive SATA 2 PLUS 4-Drive IDE (8 total) Can be combined in RAID 0, 1 PLUS 4-Drive SATA by Sil3114 Sil3114 Raid 0, 1, 5 |
Onboard USB 2.0/IEEE-1394 | 10 USB 2.0 ports supported nF4 2 1394A FireWire ports by VIA VT6307 |
Onboard LAN | Dual Gigabit Ethernet PCIe by Vitesse VSC8201 PHY PCI by Marvel 88E8001 |
Onboard Audio | Karajan Audio Module based on Realtek ALC850 8-Channel codec with 6 UAJ audio jacks, CD-in, front audio, and coaxial SPDIF In and Out |
Other Features | Power and Reset momentary switches |
BIOS | Award 2/17/2005 Release |
The DFI boards all support the full range of nVidia nForce4 features including nVRAID, Active Armor, SATAII 3Gb/s drives, NCQ, any-drive IDE/SATA Raid, PCIe Gigabit LAN by a PHY Ethernet chip (plus an additional PCI Gigabit LAN), and the nTune utility.
Packaging for the full LANParty nF4 SLI-DR is typical LANParty.
It is a huge package with a motherboard, UV cables, a system carrier, a Front-X box, and even UV sheathing for your system cables.
DFI has continued with the Karajan Audio Module first introduced on their LANParty 925x. As you will see later in our audio tests, the Karajan module was a much better performer than what we expected when we first saw the onboard Realtek 850 codec. We still wish that DFI had been able to use the High Definition ALC880 or a similar chip instead of the more common ALC850. However, the Karajan Module on the DFI SLI does provide the lowest CPU overhead that we have seen on any board using the 850.
The ALC850 Codec provides four pairs of stereo outputs, with 5-Bit volume controls and multiple stereo and mono inputs, along with flexible mixing, and gain and mute functions. Two 50mW/20ohm headset audio amplifiers are integrated at Front-Out and Surround-Out, and both amplifiers are selectable for Front-Out, Line-In and Mic-In as a Universal Audio Jack.
You can find more information on the ALC850 at Realtek.
DFI provides a full selection of rear I/O ports. These include 6 programmable audio mini jacks plus coaxial SPDIF in and out connectors to support the Realtek ALC850. The back panel also includes PS2 mouse and keyboard, 1 standard Firewire (IEEE1394a), 6 USB, and two RJ45 Gigabit Ethernet. There are no rear ports for a Parallel Printer or serial devices, but there is an onboard header for an external serial device an IR header.
On "R" models, like the DFI LANParty nF4 SLI-DR, DFI uses the Silicon Image 3114 SATA controller to add 4 more SATA ports to the 4 already provided by the nVidia nForce4 chipset. The Sil3114 ports can be combined in RAID 0, 1, or 5. RAID 5 can be implemented on this controller with 3 hard drives.
The four DIMM slots support up to 4GB of up to DDR400 memory in a Dual-Channel memory configuration. Dual-Channel 1 is DIMMs 1 and 3, and Dual-Channel 2 is DIMMs 2 and 4. DFI specifies support for both ECC and non-ECC unbuffered memory. Contacts at DFI advise that best overclocking is achieved with the dual-channel DIMMs in Sockets 2 and 4.
Board Layout
The DFI LANParty nF4 SLI-DR is very well arranged, with almost everything located where it works best. As you will see if you study the layouts of the other SLI boards, the DFI differs substantially in layout.The DFI nF4 place the CPU in the top center of the board and DIMMs at the top. This arrangement worked well in our testing and should work better (for those who change memory frequently) than in the crowded right-hand alternate location used on many boards.
The ATX 24-pin and the 4-pin 12V connector are in ideal locations on the DFI SLI. The 24-pin ATX is located on the preferred top right edge of the motherboard, and the 4-pin 12V power connector is right beside it. This board edge location keeps bulky cables away from the CPU and memory.
There is plenty of room around the Socket 939, so most Heat sink/Fans should work fine. A Zalman 7000 overhung DIMM slot 4, but it still cleared our stock OCZ memory and memory could work in all slots.
The IDE connectors are at our preferred upper right edge of the motherboard, and the floppy connector is a board edge connector located on the right edge around the middle of the board. Both locations worked well in our testing.
SATA connectors are to the right of the nF4 chipset and the magnetic levitation fan. The fan is low enough for video cards - both ATI and nVidia - to mount properly. We tried both ATI and nVidia top-of-the line cards to make sure.
Other SLI boards use a simple card edge that is reversed for SLI operation. DFI uses 6 16-pin jumper blocks that must all be moved to switch to SLI mode. We complained about the pin blocks in our review of the DFI SLI, but after working with the card edge boards, they are no better than the pin blocks. The tiny PCB's are hard to align on the other boards and the holding mechanisms are not always easy to negotiate. Neither solution, a card or pins, is really easy to change, so it is fortunate that end-users will rarely need to change positions of the normal/SLI switching.
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108 Comments
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Rike - Monday, February 28, 2005 - link
And then he double posts and can't spell "graphs." (not "graphes!") *bangs head on wall* Oh well. To err is human. Happy Monday! :)Wesley Fink - Monday, February 28, 2005 - link
#33 - That is correct, but to implement PCIe Ethernet the mfg must use a PHY gigabit ethernet controller. In fact, as I state in the review, all 4 SLI boards implement PCIe on Gigabit #1, but all 4 boards have dual gigabit ethernet. Most implement PCI on Gigabit #2 with the results you can see in the ethernet performance charts.#30 - It IS a significant point and I thought we were clear that the 3132 is PCIe. I will add that to the chart to removee any confusion. However, there is another side to MSI using PCIe on all the on-board features. With both PCIe LAN's and PCIe SATA2 add-on there are no channels left from the 20 lanes available for PCIe slots.
Rike - Monday, February 28, 2005 - link
Rike - Monday, February 28, 2005 - link
Minor typo: HL2 resolutions on the graphes are listed as 16,000 x 1200 instead of 1600 x 1200. Either that or you're using a seriously wide screen! ;)mechBgon - Monday, February 28, 2005 - link
Wes, an academic point: unless something's changed with nVidia southbridges, the nForce3/4 gigabit Ethernet controller isn't a PCI-based device, it's native to the southbridge and rides the Hypertransport bus. If you're getting >900Mbit/sec in your test, it's pretty obvious it's not on a 32-bit PCI bus ;)AlanStephens - Monday, February 28, 2005 - link
#28 - I know for a fact that Creative doesn't support Dolby Digital Encoding. I wish they did though. Here is a quote from Creative's Knowledge Basse on this:"Computer games written with support for 3D audio do not require a Dolby Digital Interactive Content Encoder (DICE) to output multichannel sound, with no exceptions. Sound devices that support the real time encoder technology from Dolby will simply receive the multichannel wave file output and encode it in real time to a somewhat modified Dolby Digital bitstream. Creative does not support the Dolby Digital Interactive Content Encoder on any of its sound cards.
The only difference between a Sound Blaster card and an audio card that has a real time encoder, is that you can make a one-wire, digital connection from your audio card to your home theater receiver and enjoy discrete multichannel sound from the game. However there will be a continuous, slight delay, known as "latency", as the encoder is creating and transmitting the bitstream, and of course the compression scheme being used is "lossy" (i.e. not bit-accurate).
If you want to enjoy 3D audio in 3D enabled PC games in multichannel surround sound with a Sound Blaster card, it is recommended that you connect the analog outputs of the sound card directly to the analog inputs of the receiver."
EODetroit - Monday, February 28, 2005 - link
I wanna know the answer to #28's question. I've been looking for the next Soundstorm... ie I want to output a dolby digital 5.1 (or better) signal through a spdif connection from a non-pre-encoded source, like only Soundstorm can.Can the MSI do this now too??
RyanVM - Monday, February 28, 2005 - link
Why didn't you guys bother to note that the Si3132 SATA controller is PCIe? I think that's a fairly significant point in comparison to the PCI Si3114 controller and it likely explains why the Si3132 was faster.Lakku - Monday, February 28, 2005 - link
I wish you would have discussed 6600GTs in more detail. I am perturbed at a number of sites saying the 6600GT is not worth it for SLI. Specifically from X-Bit (though many have echoed it) "We guess it is the 6600GT SLI configuration that's not very appropriate". The only fact for this statement is the lack of a 256MB 6600GT card. This means its high resolution on some games and FSAA capabilites are limited. But so what? Noone has discussed REAL WORLD prices of 6800GT and Ultra cards. They range from 430 to 800 dollars, for ONE card. Yet sites claim it's better to just get a 6800GT rather then two 6600GTs. I picked up my 6600GT for 170 bucks, brand new retail. It overclocked to 550/1100 easily and I kept it at that, even though it went quite a bit higher with air cooling. I put that in because it gave me another 5%-10% or so increase over stock speed. I could get two for just over 350, almost $100 cheaper, and in a majority of tests, it equals or BEATS a 6800GT. It only suffers when you get to 1600x1200 with FSAA, as its smaller frame buffer and 128-bit interface is a hinderance. But for such a HUGE price difference, is it not worth it? If I had bought two outright (my plan was to get a start on a PCIe based system to bring me up to date for the future, and then buy the next generation cards for SLI), I could use that extra 100 for the GF7600GT (I am assuming this name, and the fact that if the next generations are 24 pipes, then the mainstream will be 12) that when SLId, will be up there in terms of todays speed on 700 to 1000 dollar video combinations, all for under 400. The point is that I wish someone would actually take an IT type approach to this situation instead of badmouthing SLI or the price for running an SLI setup. You get SLI now, be cost effective and get 6600GTs, and you have a great platform for the next generation (if it still exists, but nVidia seems to have put its eggs in this basket so I assume it will be around for awhile) of cards that you can SLI and get great performance. Is SLI worth it? I say the answer SHOULD be a resounding yes if the same performance holds true for the future. It means you can always get two mainstream cards to equal ONE high end card, for a much cheaper price.chup - Monday, February 28, 2005 - link
Is the SB Live! 24 really capable of encoding audio stream into Dolby Digital stream?