Socket 939 Roundup: Battle at the Top
by Wesley Fink on July 30, 2004 8:00 AM EST- Posted in
- Motherboards
MSI K8N Neo2 Platinum: Overclocking and Stress Testing
FSB Overclocking Results
| Front Side Bus Overclocking Testbed | ||
| Processor: | Athlon 64 FX53 Socket 939 2.4GHz |
|
| CPU Voltage: | 1.5V (default) | |
| Cooling: | Thermaltake Silent Boost K8 | |
| Power Supply: | Antec TruePower 430W | |
| Maximum OC: (Standard Ratios) |
204FSBx13 2652MHz (+10.5%) |
|
| Maximum FSB: (Lower Ratio) |
290FSB x 9 (2610) at 1:1 Memory (+10%) | |
The K8N Neo2 allowed our DDR550 memory to reach the highest 1:1 performance that we have tested on any motherboard - P4 or A64. 290 Frequency (1160 FSB/HT) was the limit of our memory and the K8N reached it rather easily. By reducing the memory ratio a bit, we were right at the board limit of 300, and we could likely reach even higher OC levels with a wider range of frequency choices. The MSI K8N Neo2 was clearly the best overclocker of this roundup.
Memory Stress Test Results:
The memory stress test simply checks the ability of the K8N Neo2 to operate at its officially supported memory frequency (400MHz DDR), at the best performing memory timings that our Mushkin PC3500 Level 2 or OCZ PC3500 Platinum Ltd Modules will support. Memory stress testing was conducted by running RAM at 400MHz with 2 DIMM slots filled.| Stable DDR400 Timings - 2 DIMMs (2/4 DIMMs - 1 Dual-Channel Bank) |
|
| Clock Speed: | 200MHz |
| Timing Mode: | N/A |
| CAS Latency: | 2.0 |
| Bank Interleave: | N/A |
| RAS to CAS Delay: | 2T |
| RAS Precharge: | 10T* |
| Precharge Delay: | 2T |
| Command Rate: | 1T |
Like the other 939 motherboards in this roundup, the K8N Neo2 was completely stable with 2 DIMMs at the best performing settings of 2-2-2-10 at default speed and 2.6V default voltage. While a full memory comparison of the nVidia and VIA chipsets is beyond the scope of this roundup, we did run several SiSoft Sandra 2004 SP2 runs of the memory test module. At default settings, and the aggressive 2-2-2-10 timings on the FX53, the nF3-250 Ultra showed memory bandwidth in the 6100 range for FPU and Float. The same test on the VIA K8T800 PRO boards showed memory bandwidth in the 6000 range. Performance of both chipsets at the 1T setting was very similar. 2T Command Rates, with everything else the same, generated bandwidths of 4900 to 5000Mb/second.
Filling all four available memory slots is more strenuous on the memory subsystem than testing 2 DIMMs on a motherboard.
| Stable DDR400 Timings - 4 DIMMs (4/4 DIMMs - 2 Dual-Channel Banks) |
|
| Clock Speed: | 200MHz |
| Timing Mode: | N/A |
| CAS Latency: | 2.0 |
| Bank Interleave: | N/A |
| RAS to CAS Delay: | 2T |
| RAS Precharge: | 10T* |
| Precharge Delay: | 2T |
| Command Rate: | 2T |
The MSI K8N Neo2 was able to run with all 4 DIMM slots at the same aggressive 2-2-2-10 settings used for 2 DIMMs. However, as we have seen on the other 939 boards running all 4 DIMMs, Command Rate must be reduced to 2T when filling both Dual Channels.
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Richdog - Wednesday, July 21, 2004 - link
bigtoe33 - Wednesday, July 21, 2004 - link
If you are looking for the K8NN939 beta M03 again its availabale at bleedinedge.com on bigtoe's bios bin.http://www.bleedinedge.com/forum/showpost.php?p=32...
grdh20 - Wednesday, July 21, 2004 - link
http://forum.abit-usa.com/attachment.php?s=&po...abit av8 1.3 bios link
grdh20 - Wednesday, July 21, 2004 - link
The msi K8N Neo2 will hit the states in 2 weeks according to MSI.How will the A8V rev. 2.0 be sold in terms of order by model #. Same or different? Rev. # is only printed on the PCB, not the box.
Brickster - Wednesday, July 21, 2004 - link
I love my new Gigabyte 939 board! It kicks a*s and is perrrty in the dark! :)Wesley Fink - Wednesday, July 21, 2004 - link
#36 - The new Gigabyte BIOS DOES have multipliers in BIOS as I detailed in the review specifications. See the link in #35.RyanVM - Wednesday, July 21, 2004 - link
With performance getting so similar between the various boards/chipsets, it seems to me that AT is overlooking some of the bigger differentiating factors: integrated features. It would be nice to see how the USB, Firewire, IDE/SATA, Ethernet, Sound, etc. implementations differ in CPU utilization and overall performance.For example, the Gigabyte (inexplicably) uses a 3rd party GigE controller instead of the NF3-250's controller. What impact on throughput/CPU utilization does this have? How is VIA's SATA implementation compared to nVidia's?
It seems to me that those are become more relevant of questions than "Which board has a higher Winstone rating?"
Parc - Wednesday, July 21, 2004 - link
I had heard the Gigabyte board would not let you adjust the multipler in the bios but I saw a picture where it could be adjusted from the software in windows? Is this true? Any disadvantages to this? Also just how bad is the voltage limit holding the Gigabyte board back? Is there anyway Gigabyte could allow you any more voltage adjusts through the bios in the future or is this board hopeless for volts?bigtoe33 - Wednesday, July 21, 2004 - link
For all who want the AV8 bios...first join the forums over at www.bleedinedge.com, then look in bigtoe's bios bin. you will find the bios under abit amd boards.http://www.bleedinedge.com/forum/showpost.php?p=32...
Wesley Fink - Wednesday, July 21, 2004 - link
#31 - A friend will post a host for the BIOS soon, as I can't handle all the individual requests. Until then email me and I will be happy to send it to you.#32 & #33 - The Socket 939 boards WILL handle ECC and non-ECC memory, but I suspect the question is larger than this. Socket 940/Opteron requires REGISTERED memory and the ECC can be on or off. We have tested the 939 with Registered memory and it is definitely NOT compatable with Registered memory. If you want to keep using Registered memory (Which you may have bought for 940) you will have to stick with an Opteron.