DFI Lanparty DK X48-T2RBS Plus bios, info, photos & overclocking tips
This is a discussion on DFI Lanparty DK X48-T2RBS Plus bios, info, photos & overclocking tips within the DFI Intel Motherboard / CPU forums, part of the Intel motherboards / CPU category; Max 32M Pi & Max CPUZ Validation on H20 Time to push the E8600 Q820A599 *0464 cpu and Crucial Ballistix ...
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27-10-2008, 02:20 AM
| #9 (permalink) |
| Administrator | Max 32M Pi & Max CPUZ Validation on H20 Time to push the E8600 Q820A599 *0464 cpu and Crucial Ballistix PC2-8500 Tracer memory and they certainly didn't disappoint - max highest H20 cooled Super Pi 32M yet @5093Mhz! To think this E8600 Q820A599 *0464 only did max Super Pi 1M @4952Mhz and max validation @5079Mhz at 1.552v idle on Gigabyte EP45-Extreme with exact same cooling setup. Even better than my E8600 Q820A599 *0537 which did Super Pi 32M @5003Mhz at 1.568v idle with max CPUZ Validation @5146Mhz on DFI UT X48-T3RS DDR3 board. E8600 Q820A599 *0464
@5146Mhz   @5093Mhz - click image for full screenshot   @5025Mhz - click image for full screenshot  System:
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| Last edited by eva2000; 28-10-2008 at 03:10 AM. | |
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27-10-2008, 02:20 AM
| #10 (permalink) |
| Administrator | HD4870x2 Crossfire + 8GB DDR2 HD4870x2 Crossfire + 8GB DDR2 Recently got my 2nd HD4870x2 video card (flashed to Asus HD4870x2 Top bios), so decided to try out 2x HD4870x2 Crossfire with 4x2GB DDR2 = 8GB memory configuration. You'll definitely need to find the right combination for your memory modules for DLL Default clock skew models and DRAM CLK/DATA Driving Strength for full stability. I used Memtest86+ to quickly check which combinations produced the least number of errors at a particular borderline memory clock speed and then worked my way down to fine tuning stability in windows. Luckily, I tested each 2x2GB Mushkin PC2-8500 rated kit individually first, and eventually found the best combination for 2x2GB and 4x2GB was with the following:
4x2GB Mushkin @530Mhz 5-5-5-15 at 2.1v was fully stable for me. Individually, each 4GB kit did 568Mhz (Ascent XP2-8500) and 576Mhz (XP2-8500) at 5-5-5-15 at 2.1v.   Just to compare HD4870x2 Crossfire at stock 790/915 vs 837/985 with just E8600 @4.5Ghz and must be severely cpu limited for 3dmark benches only 3dmark2003 and 3dmark vantage showed any gain. That or Cat 8.11 RC2 drivers aren't working that well ? System:
Powermate meter = 831 Watts peak load Results Left (790/915) vs Right (837/985) click link for full screenshot 3Dmark06 = 23,129 vs 23,188 3Dmark05 = 31,182 vs 31,071 3Dmark2003 = 124,982 vs 127,931 3Dmark Vantage = 16,924 vs 17,123  Bios Settings Used - 9/23 beta bios Advance Mode Code: PC Health Status Adjust CPU Temp: Auto CPU Feature - Thermal Management Control: Disabled - PPM(EIST) Mode: Disabled - Limit CPUID MaxVal: Disabled - CIE Function: Disabled - Virtualization Technology: Disabled - Core Multi-Processing: Enabled Exist Setup Shutdown: Mode 2 O.C. Fail retry Counter: 0 O.C. Fail CMOS Reload: Disabled CPU Clock Ratio: 8.5x CPU N/2 Ratio: Enabled Target CPU Clock: 4505Mhz CPU Clock: 530 Boot Up Clock: AUTO CPU Clock Amplitude: 800mv CPU Clock0 Skew: 100ps CPU Clock1 Skew: 0ps DRAM Speed: 333/667 - Target DRAM Speed: DDR2-1060 PCIE Clock: 100mhz CPU Spread Spectrum: Disabled PCIE Spread Spectrum: Disabled Voltage Settings CPU VID Control: 1.38750v CPU VID Special Add: AUT0 DRAM Voltage Control: 2.10v SB Core/CPU PLL Voltage: 1.51 NB Core Voltage: 1.579 CPU VTT Voltage: 1.380 Vcore Droop Control: Enabled Clockgen Voltage Control: 3.45v GTL+ Buffers Strength: Strong Host Slew Rate: Weak x MCH RON Offset Value: x MCH RTT Offset Value: x MCH Slew Rate Offset Value: x MCH VREF 1 Value: x MCH VREF 2 Value: x MCH VREF 3 Value: x CPU GTL 0/2 REF Volt: 0.667X x CPU GTL 1/3 REF Volt: 0.667X x North Bridge GTL REF Volt: 0.61X DRAM Timing - Enhance Data transmitting: AUTO - Enhance Addressing: AUTO - T2 Dispatch: Disabled Clock Setting Fine Delay - DRAM CLK Driving Strength: Level 1 - DRAM DATA Driving Strength: Level 1 - Ch1 DLL Default Skew Model: Model 5 - Ch2 DLL Default Skew Model: Model 5 Fine Delay Step Degree: 5ps to 80ps Ch1 Clock Crossing Setting: AUTO - DIMM 1 Clock fine delay: Current 2024ps - DIMM 2 Clock fine delay: Curren 1174ps - DIMM 2 Control fine delay: Current 1112ps - DIMM 1 Control fine delay: Current 1112ps - Ch 1 Command fine delay: Current 74ps Ch2 Clock Crossing Setting: AUTO - DIMM 3 Clock fine delay: Current 1900ps - DIMM 4 Clock fine delay: Current 937ps - DIMM 4 Control fine delay: Current 886ps - DIMM 3 Control fine delay: Current 224ps - Ch 2 Command fine delay: Current 124ps Ch1Ch2 CommonClock Setting: AUTO Ch1 RDCAS GNT-Chip Delay: Auto Ch1 WRCAS GNT-Chip Delay: Auto Ch1 Command to CS Delay: Auto Ch2 RDCAS GNT-Chip Delay: Auto Ch2 WRCAS GNT-Chip Delay: Auto Ch2 Command to CS Delay: Auto Common CMD to CS Timing: 1N/2N/AUTO (command rate) CAS Latency Time (tCL): 5 RAS# to CAS# Delay (tRCD): 5 RAS# Precharge (tRP): 5 Precharge Delay (tRAS): 15 All Precharge to Act: AUTO REF to ACT Delay (tRFC): 72 Performance LVL (Read Delay) (tRD): 9 Read delay phase adjust: Enter Ch1 Read delay phase (4~0) - Channel 1 Phase 0 Pull-In: AUTO - Channel 1 Phase 1 Pull-In: AUTO - Channel 1 Phase 2 Pull-In: AUTO - Channel 1 Phase 3 Pull-In: AUTO - Channel 1 Phase 4 Pull-In: AUTO Ch2 Read delay phase (4~0) - Channel 2 Phase 0 Pull-In: Auto - Channel 2 Phase 1 Pull-In: Auto - Channel 2 Phase 2 Pull-In: Auto - Channel 2 Phase 3 Pull-In: Auto - Channel 2 Phase 4 Pull-In: Auto MCH ODT Latency: AUTO Write to PRE Delay (tWR): AUTO Rank Write to Read (tWTR): AUTO ACT to ACT Delay (tRRD): AUTO Read to Write Delay (tRDWR): AUTO Ranks Write to Write (tWRWR): AUTO Ranks Read to Read (tRDRD): AUTO Ranks Write to Read (tWRRD): AUTO Read CAS# Precharge (tRTP): AUTO ALL PRE to Refresh: AUTO |
| Last edited by eva2000; 20-11-2008 at 05:43 PM. | |
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27-10-2008, 03:50 PM
| #11 (permalink) |
| Senior Member Join Date: Aug 07 2008
Posts: 595
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Thanks very much for sharing your results. I'm really liking that board, I think I like it more than the Asus Rampage Formula, however I can only find the DK-X48 T2RS Plus, this is the 'RBS Plus' - what's the difference as they don't quite look the same? The sheer number of bios options is excellent, and 571 validation/563 SPI32M is very impressive for a DFI X48, I wasn't expecting that. Also that 668MHz SPI32M was great too. Was setting the cpu clock skew at 200ps really necessary for 533 FSB? Also was tRD 8 the lowest you could set maintaining stability or was there more headroom in it at the same vNB? How is vdroop on this board and is there a option to reduce or eliminate it? If you get the time, can you please do a run at 445 FSB with 9x multi on 5:6 divider @ 5-5-4-12 and the tightest possible chipset timings at safe 24/7 vNB (~tRD 6,7 or 8 I'm not sure what reasonable is for X48) with the system completely orthos/linpack/dual windows memtest stable? Any chance of an everest screen & SPI32M run at that setting? Basically I'm interested in the performance at a completely reasonable & safe 24/7 setting giving 4005MHz cpu speed and 534MHz on the ram, with the best chipset performance possible using a safe vNB. |
| Last edited by CryptiK; 27-10-2008 at 04:08 PM. | |
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27-10-2008, 04:10 PM
| #12 (permalink) |
| Administrator |
Yeah loving the extra FSB for X48, hopefully shows gains in 3dmarks too  533FSB can be done with 100ps skew, 550+ fsb needs 200ps at least. Lowest tRD you can set is determined by the chipset used and more so your memory's CAS setting in combination with memory divider used. This is for all P35/X38/X48/P45 boards not just DFI. But some boards to loosen the default tRD even more to get stability - i.e. Gigabyte's early P35/X38 boards On DDR2, on 5:6 divider cas 5 will default to around tRD 8, cas 4 will default to tRD 7. Depending of FSB frequency used, you usually have room to tweak down (tighten) from the default tRD by one tRD level provided your have a good chipset memory controller and the right amount of NB volts. So up to a certain FSB frequency, you'll be able to tighten cas 5 set memory on 5:6 divider down from tRD 8 to 7, and cas 4 set memory on 5:6 divider down from tRD 7 to 6. On 2:3 divider for cas 5 set memory, the default is 6 or 7 for tRD depending on board and chipset and set at cas 4, 2:3 divider will default to 5 o 6 for tRD depending on FSB frequency. Unique, part is DFI P35/X38/X48/P45 boards and Gigabyte P45 allow you to adjust tRD level per memory channel so you can have in between tRD 6 and 7 levels for 2:3 or between 7 and 8 tRD for 5:6 divider.  Vdroop option in bios when enabled = intel spec's droopage of ~0.016 to 0.032v under load. When Vdroop disabled means little or no droopage although I haven't tested that as i always have droop enabled - seems to clock my 45nm cpus better  As to settings requested, i'll get around to it eventually. I only spent an hour or two to arrive at the above tested configurations so whether there is more room or not, only time will tell. So more testing to come  |
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27-10-2008, 04:32 PM
| #13 (permalink) |
| Administrator |
As to differences between DK X48-T2RS vs DK X48-T2RBS Plus. The T2RBS Plus uses 6 phase digital PWM with 18 mosfets versus 4 phase digital PWM with 12 mosfets and uses Jmicron JMB363 controller instead of JMB368 so there's an additional 2x SATA ports as well as VIA VT6307 chip for firewire on T2RBS Plus Could be the extra phases and mosfets giving the extra FSB on T2RSB Plus ? DFI LP DK X48-T2RS
DFI LP DK X48-T2RSB Plus
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| Last edited by eva2000; 28-10-2008 at 04:59 AM. | |
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27-10-2008, 06:00 PM
| #14 (permalink) |
| Senior Member Join Date: Aug 07 2008
Posts: 595
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Thanks very much for the explanations. Perhaps the better VRM does help the T2RSB Plus achieve a higher FSB, it's not available at my preferred e-tailer (unfortunately, as it's my preferred X48 board at the moment) only the T2RS Plus is, which I wouldn't want to take the chance on seeing the difficulties people have had achieving 520+ FSB with it. The ability to set in-between performance levels is a neat feature, it would be nice if all manufacturers implemented that. Asus have phase 'pull-ins' that are supposed to drop the tRD by half a level, but they don't actually work at all, in fact I sometimes get worse performance with them enabled. Asus really need to improve their bioses, and provide more options, especially on the RoG line of boards like my Maximus II Formula. Although costing half again as much, the M2F is really no better than P5Q-deluxe (I own both), it's just a bit flashier, and has more temp/voltage readouts. I really expected more from a RoG board. I really wonder why X48 boards like the Rampage Extreme can hit 620 - 650+ FSB, yet others like this DFI can only manage ~570 FSB or less. Perhaps the R.E gets higher binned chips? I thought all X48's were high binned X38's, but many X38's can do 550 - 570 as well, so as far as X48's go, less than 600 FSB is not stellar performance, although for DFI X48's it actually is better than they have been previously. Choosing an X48 DDR2 board is really difficult, each model has some cons that almost make it un-purchasable. I want an X48 DDR2 board that does 600+ FSB, but it seems impossible, perhaps the companies use all the high binned X48 chips on the DDR3 boards and the DDR2 boards just got the leftover comparatively poor clocking ones? |
| Last edited by CryptiK; 27-10-2008 at 06:15 PM. | |
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27-10-2008, 08:45 PM
| #15 (permalink) |
| Administrator |
Yeah i think Asus these days has too many boards on offer, probably overwhelming their bios engineers somewhat heh. Rampage Extreme is one crazy board, maybe binned X48 and binned clock generators ? I asked DFI and they say the reason why DK X48-T2RSB Plus clocks higher on FSB than other DFI P35/X38/X48 boards is it's using a different clock generator = 9LPRS918JKLF which is same used on Rampage Extreme http://www.legitreviews.com/article/793/3/ ! DFI P45 boards some are hitting 600+FSB but not sure what clock generator they are using ? I'll have some DFI P45 DDR2/DDR3 boards to play with later so we shall see |
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27-10-2008, 09:32 PM
| #16 (permalink) |
| Senior Member Join Date: Aug 07 2008
Posts: 595
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Yes, Asus should not have so may boards of low to moderate quality and performance, instead having fewer boards and a more focused approach giving better performance. the only 'really good' board Asus currently have is the Rampage Extreme, and it is actually worthy of the RoG badge, but sadly the Maximus II Formula is not the undisputed champion of the P45 boards that it should be. I would love a board identical to the Rampage Extreme in every regard (high binned X48 chipset & excellent clock gen) but with DDR2 instead - this would surely be the king of all X48 boards if they did so. With so may people trying to purchase the 'best current' setup before nehalem is released, they would also most likely sell a lot of them if the performance could be shown to be similar to the R.E DDR3 X48 chipset ie: 650 FSB capable. I never quite understood how the X48 was a binned version of the X38, which was supposed to be designed from the ground up as a performance chipset, yet it sadly never realized these goals in practice. Both the Maximus II Formula and the P5Q-Deluxe can do 600 FSB+, so perhaps the DFI P45's are using similar spec or the same clock gens? I'm becoming increasingly aware of the influence of the clock gen over a given boards performance. I look forward to your review of the DFI P45's. *EDIT - the reviewer only managed 557 FSB with that Rampage Extreme, perhaps the X48 DFI you have may be able to achieve higher FSB if you used loose chipset timings and got aggressive with the vNB? |
| Last edited by CryptiK; 27-10-2008 at 09:58 PM. | |
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