nForce4 SLI Roundup: Painful and Rewarding
by Wesley Fink on February 28, 2005 7:00 AM EST- Posted in
- Motherboards
Gigabyte K8NXP-SLI: Features and Layout
| Specification | Gigabyte K8NXP-SLI |
| CPU Interface | Socket 939 Athlon 64 |
| Chipset | nForce4 SLI (single chip) |
| BUS Speeds | 200MHz to 400MHz (in 1MHz increments) |
| PCI/AGP Speeds | Asynchronous (Fixed) |
| PCI Speeds | 100MHz to 150MHz in 1MHz increments |
| Core Voltage | Auto, 0.80V to 1.75V in 0.025V increments |
| DRAM Voltage | Normal, +0.1V, +0.2V |
| Chipset Voltage | Normal, +0.1V, +0.2V, +0.3V |
| Hyper Transport Ratios | Auto, 1x to 5x in 1x increments |
| LDT Bus Transfer | 16/16, 16/8, 8/16, 8/8 |
| LDT Voltage | Normal, +0.1V, +0.2V, +0.3V |
| 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, 133, 166, 200 |
| Memory Command Rate | Auto, 1T, 2T |
| Memory Slots | Four 184-pin DDR Dual-Channel Slots Unbuffered Memory to 4GB Total |
| Expansion Slots | 2 x16 PCIe Slots 2 x1 PCIe 2 PCI Slots |
| SLI Setup | Movable PCB Card |
| 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 3 1394B FireWire 800 ports by TI chip |
| Onboard LAN | Dual Gigabit Ethernet PCIe by Vitesse VSC8201 PHY PCIe by Marvel 88E8053 |
| Onboard Audio | Realtek ALC850 8-Channel codec with 6 UAJ audio jacks, CD-in, front audio, and coaxial SPDIF In and Out |
| Other Features | Gigabyte Dual BIOS |
| BIOS | Award 2/01/2005 |
The shipping Gigabyte BIOS for the K8NXP-9/K8NXP-SLI family provides a wide and useful range of adjustments for many features, with the notable exception of a very limited range of memory voltage adjustments compared to other boards in the SLI roundup. As is the Gigabyte custom in recent designs, Advanced Chipset Features (and Memory Timings) can only be seen when you hot press CTRL+F1 while in the BIOS. HyperTransport adjustments are also provided in the hidden Advanced Chipset Features menu.
There are no BIOS options for adjusting or controlling SLI. This is handled in the nForce4 platform drivers and the nVidia graphics drivers.
The Gigabyte K8NXP-SLI, like the sister K8NXP-9, was designed as a top-of-the-line nForce4 motherboard. As the flagship model, it sports all the top Gigabyte features.
We are pleased that Gigabyte uses the nF4 on-chip Gigabit LAN by supporting it with a Vitesse (Cicada) Gigabit PHY. Gigabyte then goes one step further by including a second Gigabit LAN on the PCI Express Bus. This second LAN is also removed from the constraints of the slower PCI bus as it resides on the much faster PCIe bus.
Audio is AC '97 2.3, supported by the popular 8-channel Realtek ALC850. The K8NXP-SLI9 includes a wide range of audio I/O provided to make the most of the 850 chip. This includes 6 programmable audio mini-jacks and coax SPDIF in and out - all on the rear panel.
A pioneering feature for Gigabyte has been their support of high-speed 1394B Firewire on their boards. This continues with the K8NXP-SLI with 2 ports capable of 800MB/s or Firewire 800. This is double the speed of 1394A for those looking for fast Firewire access.
From a feature, board layout, and BIOS options point of view, the K8NXP-SLI can be considered the twin of the K8NXP-9. The only real change is the replacement of one PCI slot with a second PCIe video slot. All the good things about the features and layout of the K8NXP-9 are still here in the K8NXP-SLI.
DFI LANParty nF4 SLI-DR: Overclocking and Stress Testing
Gigabyte K8NXP-SLI: Overclocking and Stress Testing
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fozzymatic - Tuesday, March 1, 2005 - link
"So, is SLI worth the cost and the effort? For some, the answer will be a definite no. The SLI boards still cost a great deal, setting up the system is still a daunting task, and the cost of two top-of-the-line video cards will be just too much for many to consider SLI to be a real option."I still do not understand why this argument is so popular. Why is the general assumption that purchasers of SLI capable boards will immediately want to jump into a dual-card config? The idea is flexibility. Sure, 2 6800's are expensive now, but they will inevitably get cheaper. So why not buy one now and then profit form your forward thinking later down the line when the price of a second card is cut in half and there are more SLI-supported games available. I concede that the mobos are 50$ more than a non-SLI board but, for 50$, I'll take the enhanced upgrade path. Out of the gate the SLI boards are the fastest single or double-card NF4 mobos available, so whats to lose?
justly - Monday, February 28, 2005 - link
Wesley, well done, although I have to admit I skipped over some of the pages describing the individual boards as I am not personnaly intrested in buying a SLI system.One thing about the bar graphs, it could have been a little easier to compare between a single card and SLI if you had used split bars like in this graph
http://images.anandtech.com/reviews/video/ATI/rade...
using the top half of the bar for single card and the bottom for duel cards.
It would also be nice to see a comparasion of disk controller, firewire and USB performance (and anything else that is chipset specific) using all the different brand chipsets.
I don't think you are the person that does power supply reviews, but with all the concerns recenty about power supplies it would also be nice to see an article that not only describes some of the differences in power supplies but what components draw power from what rails and how much they draw (I have seen power supply guides that give an idea of how many total watts is needed but very little information on how those watts are divided up between rails).
One last thing, I have a little problem with this statement "the ability of a motherboard to run at much higher than stock speeds tells you something about the quality of components used in a motherboard". If every motherboad had a perfect BIOS and they all had the same overclocking options then your statement could be true, but that is not the case. Would you call all Intel branded motherboards poor quality just because Intel doesn't put overclocking options in their motherboards BIOS? What if an OEM decided to use one of these great overclocking boards in a prebuilt system and the only change they made to the board was to eliminate the overclocking options from the BIOS, is that board now poor quality?
Viper4185 - Monday, February 28, 2005 - link
Well well well, seems you are right. The MSI nForce 4 Ultra board in Australia even has 1x PCI Express slot...http://www.msi.com.tw/program/products/mainboard/m...
Does anyone know which boards support Firewire 800 (1934b)?
Also to Wesley, thanks for the reply, do you have a rough idea when the nForce 4 Ultra comparison would be available?
falcc - Monday, February 28, 2005 - link
There seems to be different version of MSI's SLI boards depending on where you live. In Australia the SLI board is a MSI K8N Diamond. The interesting thing about this board is that it has two PCI Express x1 slots. as well as the two x16 slots for SLI. It also has a wlan option.falcc - Monday, February 28, 2005 - link
ChineseDemocracyGNR - Monday, February 28, 2005 - link
#43, I'm aware it needs a PHY, but I always thought it worked the same way as it did since the nForce3-250Gb, with no PCI-E involved.I checked out the manual for the MSI K8N Diamond and ASUS A8N-SLI, from them:
MSI
"Dual LAN
? Supports dual LAN jacks
- 1st LAN supports 10/100/1000 Fast Ethernet by nForce4 SLI
- 2nd PCI Express LAN supports 10/100/1000 Fast Ethernet by Marvell 88E8053"
ASUS
"nForce4 built-in Gbit MAC with external Marvell PHY :
- NV ActiveArmor
- NV Firewall
- AI NET2"
I couldn't find a reference that the chipset LAN is tied to PCI-E.
ajmiles - Monday, February 28, 2005 - link
Excellent, thanks Wesley. Every response I've had from now has been, quote:"With regards to the overclockability, it has AI Overclock, PEG link, and other options, the extent of the overclockability was not promised and unfortunately some customers expect amazing overclocking abilities when the 1T overclock is still a good feature and is overclocking in action."
Perhaps what you would expect them to say when their board clocks more than 60mhz lower than some competitors.
If you could keep me apprised of their response either here or at amiles(at)gmail.com that'd be great. Thanks again.
JoKeRr - Monday, February 28, 2005 - link
I really wish MSI could pump a bit more voltage for the ram, 2.85 is a bit low, especially considering the Asus is giving 3V and DFI is giving 4V!! Guess if u want to run your good old BH5 sticks at 250mhz 2-2-2-7, DFI will be the way to go. But I really liked the MSI mobo. o well, guess u can't have everything.JoKeRr - Monday, February 28, 2005 - link
Wesley Fink - Monday, February 28, 2005 - link
#6 & #56 - I saw the same behavior with the A8N-SLI Deluxe during our testing, and I shared my results with Asus. I forwarded your comments and my own to the Asus A8N-SLI BIOS and Engineering team.