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: Overclocking and Stress Testing
Overclocking
| Front Side Bus Overclocking Testbed | |
| DFI LANParty nF4 SLI-DR | |
| Processor: | Athlon 64 4000+ (2.4GHz, 1MB Cache) |
| CPU Voltage: | 1.55V (default 1.50V) |
| Cooling: | Thermaltake Silent Boost K8 Heat sink/Fan |
| Power Supply: | OCZ Power Stream 520W |
| Memory: | OOCZ PC3200 EL Platinum Rev. 2 (Samsung TCCD Memory Chips) |
| Hard Drive: | Seagate 120GB 7200RPM SATA 8MB Cache |
| Maximum OC: (Standard Ratio) |
238x12 (Auto HT, 2-3-2-7, 1T, 2.9V) 2856MHz (+19%) |
| Maximum FSB: (Lower Ratio) |
318x9 (2862MHz) (Auto HT, 2.5-4-3-7, 2.9V) (1:1 Memory, 1T, 2 DIMMs in DC mode) (+59% Bus Overclock) |
The DFI nForce4 boards set new records with this CPU and memory - reaching the highest overclocks at stock speed and at a lower mulitiplier that we have ever tested with this combination. We reached a very satisfying 318 (DDR636) at 1T, at the rather aggressive memory timings of 2.5-4-3-7 with our standard OCZ PC3200 Platinum Rev.2, which is based on Samsung TCCD chips.
As we detailed in our DFI review, DDR636 translated into a Quake 3 ran at 642FPS and SiSoft Sandra 2004 standard memory bandwidth was 8,300 MB/s. The Sandra unbuffered memory bandwidth was at 4000 MB/s. All these results are new performance records in our memory testing. The very wide range of memory voltages to 4.0V is particularly useful in reaching the highest possible overclocks, along with a very complete set of memory tweaking options in the BIOS. There is still a huge reserve in the available memory voltage range as we only needed 2.9V to reach these performance levels. Those with exotic cooling will appreciate that the CPU voltage and memory voltage settings on the DFI will give them what they need to squeeze every bit of performance from their CPU and memory.
Memory Stress Tests
Our memory stress test measures the ability of the DFI to operate at its officially supported memory frequency (400MHz DDR), at the lowest memory timings that OCZ PC3200 Platinum Rev. 2 modules will support. All DIMMs used for stress testing were 512MB double-sided (or double-bank) memory. To make sure memory performed properly in Dual-Channel mode, memory was only tested using either one dual-channel (2 DIMMs) or 2 dual-channels (4 DIMMs).| Stable DDR400 Timings - One Dual-Channel (2/4 DIMMs populated) |
|
| Clock Speed: | 200MHz |
| CAS Latency: | 2.0 |
| RAS to CAS Delay: | 2T |
| RAS Precharge: | 7T |
| Precharge Delay: | 2T |
| Command Rate: | 1T |
Using two DIMMs in Dual-Channel 128-bit mode, the memory performed in all benchmarks at the fastest 2-2-2-7 timings at default 2.6V voltage.
Tests with 4 DS DIMMs on an AMD Athlon 64 system are more demanding, since AMD specifies DDR333 for this combination. However, most AMD Athlon 64 motherboards combined with recent AMD processors (the memory controller is on the AMD CPU) have been able to handle 4 DIMMs at DDR400.
| Stable DDR400 Timings - 4 DIMMs (4/4 DIMMs populated) |
|
| Clock Speed: | 200MHz |
| CAS Latency: | 2.0 |
| RAS to CAS Delay: | 2T |
| RAS Precharge: | 7T |
| Precharge Delay: | 2T |
| Command Rate: | 2T |
Tests with all four DIMM slots populated on the DFI nForce4 boards required a 2T Command Rate with 4 DS DIMMs in two dual channels. This is the pattern seen on other top-performing Socket 939 boards, but we hoped higher voltage might allow us to eek out 4 DS DIMM 1T performance. However, additional voltage did not help and DDR400 with 4 DS DIMMs still required a 2T Command Rate on the DFI nForce4 boards.
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Heinrich - Monday, February 28, 2005 - link
Wesley did you spend any time at all on this link, I consider this to be a serious issue
http://www.rhcf.com/sisubb/ultimatebb.php/topic/21...
Heinrich - Monday, February 28, 2005 - link
When I set up my MSI board I cannot get surround sound out of the optical digital cable except for DVDs. I verified this on a few web sites. Not why there is conflicting information but mine is real world experience with current drivers (did not use packaged CDs)
giz02 - Monday, February 28, 2005 - link
#28, 31 and 32...The onboard Creative Sound Blaster Live! 24-bit samples at 192 KHz instead of 96 KHz (like Realtek's ALC880/880D and 850) and features full support for Creative's EAX HD technology. Additionally, the soundcard has also passed Dolby certification for Dolby Digital and Dolby Digital EX and has an integrated Dolby interactive content encoder!
Snip from PCStats review:
http://www.pcstats.com/articleview.cfm?articleid=1...
Dice Dice baby.. (couldn't resist)
giz02 - Monday, February 28, 2005 - link
#41 I've got a TT WS0049 PS, so I should be good with the -5v.#43 I've already cancled my DFI SLI DR board. MSI here I come ($238 cdn... so it's cheaper too) :D
Wesley Fink - Monday, February 28, 2005 - link
#42 - The on-board nF4 LAN requires a PHY (Physical Layer) gigabit LAN to function properly, but is specified as PCIe. All 4 SLI boards implement PCI Express Gigabit LAN with the PHY chips (Vitesse or Marvel). If you check all 4 manuals you will see Gigabit PCIe LAN specified by all 4 for the on-chip LAN.#40 - From the MSI manual Audio specifications:
"Dolby Digital Encoder. 24-bit/96-192kHz audio quality. Up to 100db SNR. 7.1 channel H/W audio."
ChineseDemocracyGNR - Monday, February 28, 2005 - link
Wesley,"all 4 SLI boards implement PCIe on Gigabit #1"
I don't think the onboard LAN on the nForce4 chipset uses the PCI-E bus, are you sure about this?
Spacecomber - Monday, February 28, 2005 - link
Here's the address for a MSI forum note concerning the problem with the Creative onboard sound and power supplies without a -5 volt connection.http://diamondclub.msi.com.tw/eng/forum/viewthread...
And, if you take a look at the ATX12V Power Supply Design Guide, you can see that the lack of a -5 volt connection on many current power supplies should not have come as a surprise to MSI.
http://www.formfactors.org/developer/specs/ATX12V%...
Space
giz02 - Monday, February 28, 2005 - link
WOW! This is looking good...Manual available here:
http://www.msi.com.tw/program/support/manual/mnu/s...
Page 5-1 of the MS 7100 manual (At MSI)
CA0106
Brand new Azalia Spec
8 Channel & SPDIF audio effect
Page 5-8
After installing teh creative audio driver, you are able to use teh 2-,4-,6- or 8- channel and the SPDIF audio featre now..
Page 5-11
Decoder shows SPDIF Passthrough option!!!
I am not familiar with the old Creative Live 24 hardware or menu settings, but is this new?
giz02 - Monday, February 28, 2005 - link
BTW: If this is the case, I am canceling my DFI preorder (I've been waiting almost 1 month for this board to become available....)Good things may indeed come to those who wait! There is no better way to hook up to my Z5500's if the encode is supported!
giz02 - Monday, February 28, 2005 - link
#28, #31, I'd really like to know as well...#32, I guess this is brought up, because of this statement in the roundup (on the first MSI Page)
"The Audio also fully supports Dolby Digital encoding, which will matter a great deal to some users."
Anand, is this some sort of typo, or can the onboard solution in facte ENCODE dolby digital audio. The ENCODE assumes that it can take .wav audio and encode it to dolby digital and place it on any (analog/SPDIF Coax/Toslink) output (ala IntelHD and SoundStorm)
Let us know :D