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DFI LANParty UT nF3-250Gb: Overclocker's Dream

 by Wesley Fink on September 8, 2004 12:05 AM EST
54 Comments | Add A Comment
54 Comments

Memory Stress Testing: DFI LANParty UT nF3 250Gb

The memory stress test is very basic, as it simply tests the ability of the DFI nF3 250Gb to operate at its officially supported memory frequency (400MHz DDR), at the lowest memory timings that OCZ PC3200 Platinum Rev. 2 Modules will support. Because of the numerous questions that have been asked about the number of DIMMs on Socket 754 boards, Memory Stress Testing was conducted by running 1 DIMM, 2 DIMMs, and all 3 DIMMs at DDR400. All DIMMs used for stress testing were 512MB double-sided (or double-bank) memory.

Stable DDR400 Timings - 1 DIMMs
(1/3 DIMMs populated - Single-Channel mode)
Clock Speed: 200MHz
CAS Latency: 1.5
RAS to CAS Delay: 2T
RAS Precharge: 10T*
Precharge Delay: 2T
Command Rate: 1T
*Several memory tests have shown that memory performs fastest on the nVidia nForce chipsets at a TRas (RAS Precharge) settings in the 9 to 13 range. We ran our own Memory Bandwidth tests with memtest86 with TRas settings from 5 to 15 at a wide range of different memory speeds. The best bandwidth was consistently at 9 to 11 at every speed, with TRas 10 always in the best range at every speed. The performance improvement at TRas 10 was only 2 to 4% over TRas 5 and 6 depending on the speed, but the performance advantage was consistent across all tests. All benchmarks were run at a TRas setting of 10.

We have not tested a Socket 754 board that offered a CAS 1.5 setting. The OCZ memory ran without problems with 1 DIMM at 1.5-2-2-10 settings.


Stable DDR400 Timings - 2 DIMMs
(2/3 DIMMs populated - Single-Channel mode)
Clock Speed: 200MHz
CAS Latency: 2.0
RAS to CAS Delay: 2T
RAS Precharge: 10T*
Precharge Delay: 2T
Command Rate: 1T
*Several memory tests have shown that memory performs fastest on the nVidia nForce chipsets at a TRas (RAS Precharge) settings in the 9 to 13 range. We ran our own Memory Bandwidth tests with memtest86 with TRas settings from 5 to 15 at a wide range of different memory speeds. The best bandwidth was consistently at 9 to 11 at every speed, with TRas 10 always in the best range at every speed. The performance improvement at TRas 10 was only 2 to 4% over TRas 5 and 6 depending on the speed, but the performance advantage was consistent across all tests. All benchmarks were run at a TRas setting of 10.

All earlier 754 benchmarks were run with 2 DIMMs, and this is the configuration that was used for all standard benchmark tests. The DFI LANParty UT was completely stable with 2 DIMMs at the rated timings of 2-2-2-10 at default speed.


Filling all three available memory slots is more strenuous on the memory subsystem than testing 2 DIMMs on a motherboard. We were very pleased to find that 3 DS DIMMs (1.5GB) of memory worked fine at timings almost the same as the aggressive timings that we used for 2 DIMMs. The DFI is one of the few Socket 754 boards that we have tested which can handle 3 DS DIMMs. You do need to use slightly slower timings with 3 DIMMs, but the 2-2-3-10 is very close to the rated 2-2-2-10 timings of the memory which we used for testing.

Stable DDR400 Timings - 3 DIMMs
(3/3 DIMMs populated - Single-Channel mode)
Clock Speed: 200MHz
CAS Latency: 2.0
RAS to CAS Delay: 3T
RAS Precharge: 10T*
Precharge Delay: 2T
Command Rate: 2T
*Several memory tests have shown that memory performs fastest on the nVidia nForce chipsets at a TRas (RAS Precharge) settings in the 9 to 13 range. We ran our own Memory Bandwidth tests with memtest86 with TRas settings from 5 to 15 at a wide range of different memory speeds. The best bandwidth was consistently at 9 to 11 at every speed, with TRas 10 always in the best range at every speed. The performance improvement at TRas 10 was only 2 to 4% over TRas 5 and 6 depending on the speed, but the performance advantage was consistent across all tests. All benchmarks were run at a TRas setting of 10.

The boot screen and Sisoft Sandra 2004 both reported a Command Rate of 2T when all 3 DIMM slots were filled.

FSB Overclocking: DFI LANParty UT nF3 250Gb Performance Test Configuration: DFI LANParty UT nF3 250Gb
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  • alex1971 - Wednesday, September 8, 2004 - link

  • alex1971 - Wednesday, September 8, 2004 - link

    I think its tested with Raid 3+4 that are the two native Ports directly at NF250GB.
    The Ports 1+2 are native also, but have to use an external PHY.
    This Ports 1+2 are finished when HTT > 240 MHZ !!
    Try it.....

    Remeber: Main S-ATA Problems only at PORT 1+2 because of the PHY .....

  • Jeff7181 - Wednesday, September 8, 2004 - link

    Glad I didn't buy a MSI K8N Neo Platinum yet... I'll wait for this board before I go A64. =)

  • SLIM - Wednesday, September 8, 2004 - link

    Great article man, but I almost blew by the part where you mentioned that the Far Cry and UT results were with a 9800pro vs 6800ultras. You might consider putting asterisk on those graphs and bold or highlight the huge difference in graphics cards.
    It might help those who prefer to only look at the pretty pictures.

    SLIM

    PS: I second the Iwill board review request.

  • SUOrangeman - Wednesday, September 8, 2004 - link

    Review request: http://www.iwillusa.com/products/ProductDetail.asp...

    Although this is not a 754-pin mobo, the experience should be great nonetheless!

    -SUO

  • at80eighty - Wednesday, September 8, 2004 - link

    i second..umm...third...punko's Anantech's "Overclocking for Dummies" idea...

    i'd LOVE to dig into my rig...but it kinda scares me if i f*ckup : )




  • Myrandex - Wednesday, September 8, 2004 - link

    I think the yellow looks cool, but a UV reactive plastic would have been cool along with it. This does seem a bit more of a 'budget' type board when compared to other LanParty series boards. I sure do like it a lot, and I have considered moving from my old MSI K8T Neo board to this one (so I am kinda happy about it being S754). I do wonder about the two SATA cables near the AGP socket, as they are extremely out of the way, and it brings more cable clutter to the center of the board.

  • Wesley Fink - Wednesday, September 8, 2004 - link

    #16 - The test bed had a MaXLine III 250GB SATA hard drive with 16MB of buffer. We first tested with the SATA on Channel 1 between the AGP slot and the CPU -- the plan was to see where SATA failed and then switch to IDE to find the top OC. When we reached DDR600 then DDR616 while running this SATA drive we saw no point in the IDE switch. This board is really stable in OC - even with SATA.

  • rjm55 - Wednesday, September 8, 2004 - link

    You say on page 6 that you ran the overclocking tests with a SATA hard drive. Can you please confirm that you did DDR616 running a SATA hard drive, because I've read that SATA drives can hold back overclocking.

  • Avalon - Wednesday, September 8, 2004 - link

    *drool*
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