Dfi Dk P55-t3eh9 + 4gb A-data 2000x Cas8

[eva2000]

​

System:

• Intel i5 750 L925B626
• Corsair H50-1 s1156 H20 + stock 59cfm Corsair fan (pump on cpu fan header, fan on cpu_pwm fan header)
• DFI LP DK P55-T3EH9 12/08 beta bios
• 128MB Gainward FX5200 PCI video card to start with
• 2x2GB A-DATA 2000X dual channel kit #4 (modules 7+8)
• 640GB Samsung SATA
• Pioneer DVD-R
• 1KW PC&C Quad SLI psu
• Additional cooling: 120x25mm Spire 75cfm fan over cpu socket/pwm area and 60x25mm Sunon 23.5cfm fan over PCH chipset heatsink

4GB A-DATA 2000X Kit #4
CAS 8 Overclocking Tests - Round 1​

For CAS8 clocks on kit #4 definitely better than kit #5. But still DDR3-2000Mhz 8-8-8-24 1T has minor errors on DFI DK P55-T3EH9 even though same kit #4 on Asus P6T6 WS Revolution did DDR3-2000Mhz 7-8-7-24 1T at 1.58v ??? Weird ? Could be board/bios related or just my i5 750 doesn't like 7-8-7-24 on these modules than much ?

Strangely for kit #4 finding 8-9-8-24 clocks a bit easier to clock than 9-9-9-24 ?

2x2GB A-DATA 2000X dual channel Kit #5 modules 9+10

• on Asus P6T6 WS Revolution did DDR3-2000Mhz 7-9-7-24 1T at 1.60v
• on DFI DK P55-T3EH9 does
  • DDR3-2000Mhz 8-9-8-24 1T at 1.264v CPU VTT at 1.66v (4x 32M) - loosen tRFC 110 and tFAW 37 and tRRD 5
  • DDR3-2168Mhz 8-9-8-24 1T at 1.342v CPU VTT at 1.78v (single 32M) - loosen tRFC 110 and tFAW 37 and tRRD 5

2x2GB A-DATA 2000X dual channel Kit #4 modules 7+8

• on Asus P6T6 WS Revolution did DDR3-2000Mhz 7-8-7-24 1T at 1.58v
• on DFI DK P55-T3EH9 kit #4 scales with just CPU VTT more than Kit #5
  • DDR3-2008Mhz 8-9-8-24 1T at 1.264v CPU VTT at 1.58v (4x 32M) - tRFC 74 and tFAW 20
  • DDR3-2108Mhz 8-9-8-24 1T at 1.282v CPU VTT at 1.66v (4x 32M) - tRFC 74 and tFAW 20
  • DDR3-2194Mhz 8-9-8-24 1T at 1.282v CPU VTT at 1.70v (4x 32M) - tRFC 88 and tFAW 30

DDR3-2008Mhz 8-9-8-24 1T at 1.58v​

Super Pi 32M, HyperPi 4x32M, Everest and added MaxPi multi

 

[eva2000]

DDR3-2108Mhz 8-9-8-24 1T at 1.66v​

Super Pi 32M, HyperPi 4x32M, Everest and added MaxPi/MaxMem multi

 

[eva2000]

DDR3-2194Mhz 8-9-8-24 1T at 1.70v​

Super Pi 32M, HyperPi 4x32M, Everest and added MaxPi/MaxMem multi

 

[brandonwh64]

Good ram it looks like!

 

[eva2000]

Yup looks good indeed

DDR3-2274Mhz 8-9-8-27 1T at 1.72v​

Loosened timings alot more, pushed voltages a bit more and dropped QPI frequency from 4.8GT/s (18x multi) to 4.27GT/s (16x multi) to achieve my highest frequency so far for bclk 227bclk as well as for memory frequency @DDR3-2274Mhz 8-9-8-27 1T at 1.72v validation and @DDR3-2247Mhz 8-9-8-27 1T at 1.72v for Super Pi 1M.

 

[eva2000]

4GB A-DATA 2000X Kit #4
CAS 7 Overclocking Tests - Round 1​

Now to CAS7 timings for 2nd kit #4. The same trend continues, kit #4 has better CAS7 overclocking headroom than kit #5. Goes to show not all memory are created equal

Kit #4 managed DDR3-1948Mhz 7-8-7-24 1T at same settings and same 1.70v vdimm which is much higher than Kit #5's max DDR3-1834Mhz 7-8-7-24 1T at 1.70v. But kit #4 like kit #5 didn't scale any higher with loosened tRCD of 9 or 10 (7-9-7-24 or 7-10-7-24).

System:

• Intel i5 750 L925B626
• Corsair H50-1 s1156 H20 + stock 59cfm Corsair fan (pump on cpu fan header, fan on cpu_pwm fan header)
• DFI LP DK P55-T3EH9 12/08 beta bios
• 128MB Gainward FX5200 PCI video card to start with
• 2x2GB A-DATA 2000X dual channel kit #4 (modules 7+8)
• 640GB Samsung SATA
• Pioneer DVD-R
• 1KW PC&C Quad SLI psu
• Additional cooling: 120x25mm Spire 75cfm fan over cpu socket/pwm area and 60x25mm Sunon 23.5cfm fan over PCH chipset heatsink

2x2GB A-DATA 2000X dual channel Kit #5 modules 9+10

• on Asus P6T6 WS Revolution did DDR3-2000Mhz 7-9-7-24 1T at 1.60v
• on DFI DK P55-T3EH9 does
  • DDR3-1834Mhz 7-8-7-24 1T at 1.296v CPU VTT at 1.70v (1x 32M) - loosen tRFC 110 and tFAW 33

2x2GB A-DATA 2000X dual channel Kit #4 modules 7+8

• on Asus P6T6 WS Revolution did DDR3-2000Mhz 7-8-7-24 1T at 1.58v
• on DFI DK P55-T3EH9 kit #4 scales with just CPU VTT more than Kit #5
  • DDR3-1948Mhz 7-8-7-24 1T at 1.264v CPU VTT at 1.70v (4x 32M) - tRFC 110 and tFAW 33

 

[Arrakis9]

interesting to see what this board can do.. definitely subscribing to this thread

 

[d3fct]

very nice. been tossin around the idea of getting these a set or 2 of these, you just made the decision much easier for me.