nForce4 Ultra Roundup: Charting the Mainstream
by Wesley Fink on July 5, 2005 10:28 PM EST- Posted in
- Motherboards
Biostar NF4UL-A9: Overclocking and Stress Testing
FSB Overclocking Results
| Front Side Bus Overclocking Testbed | |
| Biostar NF4UL-A9 | |
| Processor: | Athlon 64 4000+ (2.4GHz, 1MB Cache) |
| CPU Voltage: | 1.50V (default 1.50V) |
| Cooling: | Thermaltake Silent Boost K8 Heatsink/Fan |
| Power Supply: | OCZ Power Stream 520W |
| Memory: | OCZ PC3200 EL Platinum Rev. 2 (Samsung TCCD Memory Chips) |
| Hard Drive: | Seagate 120GB 7200RPM SATA 8MB Cache |
| Maximum OC: (Standard Ratio) |
223x12 (Auto HT, 2-3-2-7, 1T, 2.7V) 2677MHz (+11.5%) |
| Maximum FSB: (Lower Ratio) |
232x11 (2552MHz) (Auto HT, 2.5-3-3-7, 2.7) (1:1 Memory, 1T, 2 DIMMs in DC mode) (+16% Bus Overclock) |
With all of the excellent adjustments for overclocking, we were hoping for some nice performance boosts with the Biostar. Unfortunately, that was not to happen, as the board design did not match the controls provided by Biostar. Overclocking was about the worst in the roundup, with just an 11.5% boost on a CPU that can do 20% overclocking on some boards. The lower multiplier didn't help much, allowing just a 16% boost.
Memory Stress Test Results:
Our memory stress test measured the ability of the Biostar 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 that 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 Biostar 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, and is a limitation of the AMD on-chip memory controller. Additional voltage did not help and DDR400 with 4 DS DIMMs still required a Command Rate as we have seen on other nF4 boards.
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yacoub - Wednesday, July 6, 2005 - link
#33 - Wesley, that's awesome news. Can you post that somewhere more important so buyers know to be on the lookout for it? =)kyparrish - Wednesday, July 6, 2005 - link
Good article!I'm seriously considering dumping my DFI S754/NC 3200+ setup for that Epox board and a cheap S939 A64 :)
Wesley Fink - Wednesday, July 6, 2005 - link
#29 and #31 - UPDATE: I have talked with contacts in the Memory Industry and Samsung TCCD is now available again from Samsung. TCCD disappeared for a few months but production didn't really stop. TCC5 is DDR466 and TCCD is DDR500, but both chips come off the same line and are binned for speed grade. Samsung stopped binning for DDR500 grade until recently - and left this job to the memory makers.Recently Samsung has told memory makers they are binning once again for DDR500/TCCD and the TCCD chips are available again. It will take a few weeks for the pipelines to fill but TCCD is not dead. Some companies are staying with TCC5 at a lower cost and binning for the top performance unless the yields start to go down.
Wesley Fink - Wednesday, July 6, 2005 - link
#24 - The base nForce4 is sometimes called the nForce4 X4 and runs at 800 HTT, while the Ultra and SLI run at 1000HT. When 1000HT was first introduced we found no real difference in performance at 800HT and 1000HT. What the 1000HT did provide was quite a bit more overclocking headroom. A reader may have an example of where 1000HT outperforms 800HT but the real world difference is negligible.#28 - There are now more than 60 BIOS releases for the DFI nF4, many customized for particular memory types. Only 3 have been posted to their website. For the latest DFI nF4 BIOS a good place to check is www.xtremesystems.org or the BIOS Files Forum at www.bleedinedge.com. There is now a 7/04 BIOS that is reported to be more stable in upper memory ratios (433,466,500) with Rev. E chips.
#29 - You are overstating the TCCD situation. Corsair still sells TCCD, as do several other memory vendors. There is no doubt TCCD is drying up everywhere but Corsair, and that will continue. New TCC5 dimms that are said to perform like TCCD are in process in at least one memory company. We have requested these new TCC5-based dimms and will share our findings as soon as we receive the memory. There are also some new BH5 dimms that we thought were gone forever. We have even seen the new BH5 binned and advertised as DDR500 2-2-2 at higher voltages around 3.3V.
yacoub - Wednesday, July 6, 2005 - link
Well, while this review -has- convinced me to go with the DFI board over the Chaintech, that is purely due to the audio CPU usage issues of the onboard vs daughterboard. I'm shocked at how much difference that makes.That said, most of the memory testing (and thus most of the review) was meaningless to me (and everyone else who doesn't have access to TCCD memory anymore). =/
Wesley Fink - Wednesday, July 6, 2005 - link
#17 - Thanks for pointing out the errors. They have been corrected. Do you want a job proof reading :-)yacoub - Wednesday, July 6, 2005 - link
Regarding the tRAS recommendation:Can we petition Anandtech to stop using memory that the consumer can't get anymore? (Namely TCCD-based Plat Rev2.) Go pick up some TCC5 and do your tests with what the consumer is actually going to be receiving so your tests actually mean something.
mongoosesRawesome - Wednesday, July 6, 2005 - link
What BIOS version did you use with the DFI? It reads: "Award 7/01/2005 Release" in your list of features for the DFI, but I could not find that BIOS release on their website.AsiLuc - Wednesday, July 6, 2005 - link
Sorry I meant: GA-K8NF9http://www.giga-byte.com/MotherBoard/Products/Prod...
AsiLuc - Wednesday, July 6, 2005 - link
I'd liked to see the Gigabyte GA-K8NP9 reviewed, because it has passive southbridge cooling (silence :) ) and is cheap.