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PCMark Vantage => 15482 DK P55 performs stable in 200/ 2000MHz. To compare with other P55, there is no difference in voltage setting. OC performance is better than average. DDR3 bandwidth DDR3 2000 CL8 8-8-25 1T，1.53V Sandra Memory Bandwidth - 24479MB/s EVEREST Memory Read - 18567MB/s DDR3 2100 CL8 8-8-25 1T，BIOS 1.63V Sandra Memory Bandwidth - 26008MB/s EVEREST Memory Read - 19645MB/s Memory bandwidth of DK P55 is a little bit higher than others. However, the frequency reaches 2100MHz only. I hope that DFI can break through the bottleneck and release new BIOS for overclocking. Software bundling is the weakness part in DFI product. Finally, DFI adds some useful tools for P55 series such as Auto-boost, bclk OC & BIOSecure. BIOSecure let you recover BIOS when crashing. Generally, you have to send the board back when BIOS is crashed; with BIOSecure, you can recover it by yourself immediately. If your board cannot boot anymore, you can user BIOSecure on the other PC or NB as “BIOS programmer”. Simply “install” the new BIOS via mini USB port, your board with be fully recovered within 1 minute. Then, let’s try higher bclk and DRAM frequency CPU 210.8 X 20 => 4216Mhz DDR3 218 CL8 8-8-25 1T Hyper 4 X PI 32M=> 9m 24.406s CPUMARK 99=> 653 Nuclearus Multi Core => 25975 Fritz Chess Benchmark => 25.89/12425 CrystalMark 2004R3 => 305172 CINEBENCH R10 1 CPU=> 5966 x CPU=> 21375 PCMark Vantage => 16052 CPU works stable in bclk 210.8MHz, it could be higher if you enable “CPU/DRAMCOMP”. When OC to 4.2GHz, it still passes the test. Of course, if shows the OC performance.

DDR3 setting in detail CMOS RELOADED: there are four banks for saving customized profile. PC status This is my BIOS setting screen capture. The potential of OC is depending on CPU quality. Even you get two or more i5-750 which was produced in the same time, the OC result will be totally different. So, you have to adjust frequency & voltage carefully to get the best result. Configuration CPU: Intel Core i5-750 MB: DFI LANParty DK-P55 T3eH9 DRAM: CORSAIR DOMINATOR-GT CMG4GX3M2A2000C8 VGA: GIGABYTE GTX260 OC HD: CORSAIR CMFSSD-64GB2D (RAID 0) POWER: be quiet! STRAIGHT POWER DELUXE 550W Cooler: Tuniq Tower 120 Extreme Cooler Tuniq Tower12 Extreme ,Hi-end solution for air cooling. Cooper made basement; five heat-pipe in both left & right side. CPU 200 X 20=> 4000Mhz 1.34V DDR3 2000 CL8 8-8-25 1T 1.53V Hyper 4 X PI 32M=> 9m 52.359s CPUMARK 99=> 622 Nuclearus Multi Core => 24715 Fritz Chess Benchmark => 24.71/11858 CrystalMark 2004R3 => 294022 CINEBENCH R10 1 CPU=> 5577 x CPU=> 20345

There is an extra fin module in middle for enlarging the surface for better heat dissipation. Cooler module for MOSFET; DFI indeed improves the cooler quality for DK series. Tantalum Capacitor for audio “Solid capacitor” produces “artificial” sound, so DFI adopts Tantalum cap in audio circuit. The memory bandwidth of P55 is less than X58 because the dual channel architecture. Boot up screen BIOS menu It’s the first time DFI adopts AMI BIOS. You can choose the language you want when log in BIOS menu. OC main menu Options for CPU Voltage setting page O.C. Shut Down Free: DFI patent technology; no “turn off the power” needed when changing the voltage. CPU Voltage 1.0000~2.0000V Power Saving Standard means turn ”Vdroop” off; Advance means you allow voltage droop Super VID ON means lock down the voltage when enabling EIST/C1E. CPU VTT Voltage +0.05~+0.697V DRAM Voltage 1.20~2.60V CPU/DRAMCOMP: When enabling this option, you can get 1~5MHz higher in bclk.

LGA 1156 is the latest Intel platform which announced two months ago. P55 is the first chipset designed for the new platform; and at this moment, there are three LGA 1156 CPUs in retail, Core i5-750, i7-860 & i7-870. By following Intel’s marketing segmentation, almost every MB manufacturers launched P55 product for mainstream to mid-high market. DFI LANParty launched P55 later than other brands; finally, we found DFI P55 in market in the end of October. Recently, we also heard some news about DFI’s P55 in mini-ITX form factor, maybe DFI want to create a different segment for P55? DFI LANParty launched P55 later than other brands; finally, we found DFI P55 in market in the end of October. Recently, we also heard some news about DFI’s P55 in mini-ITX form factor, maybe DFI want to create a different segment for P55? The product I review today is DK version, the mid-range product in LANParty series. The full marketing name is “DFI LANParty DK P55-T3eH9”. (DK P55 for short). You can find blue & black color on package; DFI adopts this pattern since early 2009. Accessories User manual, ABS manual (auto overclocking), DVD driver disc, I/O shield, Crossfire & SLI bridge, USB cable (for BIOSecure function). DFI LANParty DK-P55 T3eH9 Bottom left of DK P55 3 PCIe, supports 2-way CrossfireX & SLI with Physics (Bandwidth: x16/ x4/ x0 or x8/ x4/x8) 2 PCIe x1 2 PCI Intel 82587DV GbE LAN, Debug LED Realtek ALC 885 for 7.1 channels HD audio Bottom right of DK P55 6 SATA II connectors in orange (RAID 0/1/0+1/5 function from P55 chipset) 2 SATA II connectors in black (RAID 0/1 function from JMB322) Power/ Reset buttons Upper right 4 DDR3 DIMM in Dual channel architecture; ready for DDR3 1066/ 1333/ 1600/ 1800(OC); max capacity is 16GB (4G x 4) You should OC DDR3 to reach 1800MHz. You can also find 24-pin DC in connector here. Upper left LGA 1156 socket PWM: 6 phase for CPU, 2 phase for VTT, 1 phase for the incoming Clarkdale. I/O 4 USB 2.0 1 power eSATA/ 1 USB 2.0 1 optical/ Coaxial S/PDIF 1 RJ-45 LAN port 1 Clear CMOS button 1 mini USB port for BIOSecure Cooler module for DK P55