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2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R - i4memory.com - different look at memory
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2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

This is a discussion on 2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R within the DDR2 Intel Memory forums, part of the Intel memory category; Thanks to folks at G.Skill got a new DDR2 kit of memory to play with - 2x1GB G.Skill F2-8500CL5D-2GBPK 8 ...

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Old 12-02-2008, 08:07 PM   #1 (permalink)
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2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

Thanks to folks at G.Skill got a new DDR2 kit of memory to play with - 2x1GB G.Skill F2-8500CL5D-2GBPK 8 layer PCB dual channel kit. All that I have been told is that these use non-Micron D9 ICs but not sure what they use but they seem to perform very well so far



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System
  • Intel Core 2 Duo E8500 Q740A493T 2L7**** / **1808
  • CPU Cooling: Corsair Nautilus 500 H20
  • DFI LP LT X38-T2R 1/11 official bios
  • 128MB Gainward FX5200 PCI
  • 2x1GB G.Skill F2-8500CL5D-2GBPK 8 Layer PCB dual channel kit
  • 750GB Samsung HD753LJ
  • Pioneer DVD-RW
  • 620W Corsair HX620 PSU
  • WinXP Pro SP2

@533Mhz 5-5-5-15 at 2.00v bios (1.93-1.95v Smartguardian)







Click image for larger screenshot

Super Pi single & dual 32M





Everest Ultimate Bandwidth & SPD





Prime95 v25.6 Blend Idle & Load






DFI LP LT X38-T2R 1/11 Official Bios Settings

Code:
PC Health Status
Adjust CPU Temp: +9

CPU Feature
- Thermal Management Control: Disabled
-  PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- Virtualization Technology: Disabled
- Core Multi-Processing: Enabled

Exist Setup Shutdown: Mode 2
Shutdown after AC Loss: Disabled
CLOCK VC0 divider: AUTO
CPU Clock Ratio Unlock: Enabled
CPU Clock Ratio: 9.5x
- Target CPU Clock: 3375
CPU N/2 Ratio: Enabled
CPU Clock: 355
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 1067
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled

Voltage Settings
CPU VID Control: 1.1875v
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.00v
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.530
CPU VTT Voltage: 1.200
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 110
x CPU GTL 0/2 REF Volt: 110
x North Bridge GTL REF Volt: 110

DRAM Timing
- Enhance Data transmitting: FAST 
- Enhance Addressing: FAST
- T2 Dispatch: Enabled 

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: Current 89
- DIMM 2 Clock fine delay: Current 456
- DIMM 1 Control fine delay: Current 534
- DIMM 2 Control fine delay: Current 289
- Ch 1 Command fine delay: Current 801

Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: Current 89
- DIMM 4 Clock fine delay: Current 400
- DIMM 3 Control fine delay: Current 387
- DIMM 4 Control fine delay: Current 356
- Ch 2 Command fine delay: Current 801

Ch1Ch2 CommonClock Setting: More Aggressive

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 (where cpuz sees 1T or 2T SETTING)

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): 42
Performance LVL (Read Delay) (tRD): AUTO

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; 20-05-2008 at 03:53 PM.
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Old 13-02-2008, 03:21 AM   #2 (permalink)
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Re: 2GB G.Skill F2-8500CL5D-2GBPK

@600Mhz 5-5-5-15 at 2.10v bios (2.04v Smartguardian)







Click image for larger screenshot

Super Pi single & dual 32M





Everest Ultimate Bandwidth




DFI LP LT X38-T2R 1/11 Official Bios Settings

Code:
PC Health Status
Adjust CPU Temp: +9

CPU Feature
- Thermal Management Control: Disabled
-  PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- Virtualization Technology: Disabled
- Core Multi-Processing: Enabled

Exist Setup Shutdown: Mode 2
Shutdown after AC Loss: Disabled
CLOCK VC0 divider: AUTO
CPU Clock Ratio Unlock: Enabled
CPU Clock Ratio: 9.5x
- Target CPU Clock: 3800
CPU N/2 Ratio: Enabled
CPU Clock: 400
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 1203
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled

Voltage Settings
CPU VID Control: 1.20000v
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.10v
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.530
CPU VTT Voltage: 1.205
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Enable
x CPU GTL1/3 REF Volt: 79
x CPU GTL 0/2 REF Volt: 79
x North Bridge GTL REF Volt: 79

DRAM Timing
- Enhance Data transmitting: FAST 
- Enhance Addressing: FAST
- T2 Dispatch: Enabled 

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: 280
- DIMM 2 Clock fine delay: 420
- DIMM 1 Control fine delay: 560
- DIMM 2 Control fine delay: 280
- Ch 1 Command fine delay: 770

Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: 280
- DIMM 4 Clock fine delay: 420
- DIMM 3 Control fine delay: 560
- DIMM 4 Control fine delay: 280
- Ch 2 Command fine delay: 770

Ch1Ch2 CommonClock Setting: More Aggressive

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 (where cpuz sees 1T or 2T SETTING)

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): 42
Performance LVL (Read Delay) (tRD): AUTO

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; 20-05-2008 at 03:54 PM.
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Old 13-02-2008, 03:25 AM   #3 (permalink)
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Re: 2GB G.Skill F2-8500CL5D-2GBPK

CAS4 Results


Looks like 490mhz 4-4-4-12 is the limit at 2.19v bios set vdimm. Setting CAS5 as in 5-4-4-12/15 didn't help but it could do 5-5-4-x easily at higher clocks. 2.23-2.27v vdimm allowed less memtest86+ v2.00 errors but still were a few when looping test #5.

@490Mhz 4-4-4-12 at 2.19v bios set




Super Pi single & dual 32M - Including Everest Bandwidth






DFI LP LT X38-T2R 1/11 Official Bios Settings


Code:
PC Health Status
Adjust CPU Temp: +9

CPU Feature
- Thermal Management Control: Disabled
-  PPM(EIST) Mode: Disabled
- Limit CPUID MaxVal: Disabled
- CIE Function: Disabled
- Execute Disable Bit: Disabled
- Virtualization Technology: Disabled
- Core Multi-Processing: Enabled

Exist Setup Shutdown: Mode 2
Shutdown after AC Loss: Disabled
CLOCK VC0 divider: AUTO
CPU Clock Ratio Unlock: Enabled
CPU Clock Ratio: 9.5x
- Target CPU Clock: 3102
CPU N/2 Ratio: Enabled
CPU Clock: 326
Boot Up Clock: AUTO
DRAM Speed: 266/800
- Target DRAM Speed: 980
PCIE Clock: 100mhz
PCIE Slot Config: 1X 1X

CPU Spread Spectrum: Disabled
PCIE Spread Spectrum: Disabled
SATA Spread Spectrum: Disabled

Voltage Settings
CPU VID Control: 1.1875v
CPU VID Special Add: AUTO
DRAM Voltage Control: 2.19v
SB Core/CPU PLL Voltage: 1.51
NB Core Voltage: 1.530
CPU VTT Voltage: 1.200
Vcore Droop Control: Enabled
Clockgen Voltage Control: 3.45v
GTL+ Buffers Strength: Strong
Host Slew Rate: Weak
GTL REF Voltage Control: Disable
x CPU GTL1/3 REF Volt: 110
x CPU GTL 0/2 REF Volt: 110
x North Bridge GTL REF Volt: 110

DRAM Timing
- Enhance Data transmitting: FAST 
- Enhance Addressing: FAST
- T2 Dispatch: Enabled 

Clock Setting Fine Delay
Ch1 Clock Crossing Setting: More Aggressive
- DIMM 1 Clock fine delay: 350
- DIMM 2 Clock fine delay: 560
- DIMM 1 Control fine delay: 560
- DIMM 2 Control fine delay: 420
- Ch 1 Command fine delay: 980

Ch2 Clock Crossing Setting: More Aggressive
- DIMM 3 Clock fine delay: 350
- DIMM 4 Clock fine delay: 560
- DIMM 3 Control fine delay: 560
- DIMM 4 Control fine delay: 420
- Ch 2 Command fine delay: 980

Ch1Ch2 CommonClock Setting: More Aggressive

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 (where cpuz sees 1T or 2T SETTING)

CAS Latency Time (tCL): 4
RAS# to CAS# Delay (tRCD): 4
RAS# Precharge (tRP): 4
Precharge Delay (tRAS): 12
All Precharge to Act: AUTO
REF to ACT Delay (tRFC): 42
Performance LVL (Read Delay) (tRD): 5

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; 20-05-2008 at 03:54 PM.
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Old 13-02-2008, 10:52 AM   #4 (permalink)
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Jammer's PC Specs
 
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Location: Melbourne
Posts: 2,007
Re: 2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

Oooh nice! These seem to perform on par with the good Ballistix. 600 at 2.1V goodness.
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Old 13-02-2008, 09:22 PM   #5 (permalink)
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Re: 2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

Yeah 5-5-5-15 is good, but 4-4-4-12 maxed around 490Mhz so far at 2.19v - updated post above.
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Old 14-02-2008, 06:44 AM   #6 (permalink)
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Re: 2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

Please George take off heatsinks It's very easy from G.skill.
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Old 14-02-2008, 11:53 AM   #7 (permalink)
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Re: 2GB G.Skill F2-8500CL5D-2GBPK - 8 Layer PCB + DFI LT X38-T2R

Been asked kindly by G.Skill not to remove heatspreaders, so until I get permission to do so, I'll respect their wishes and keep them clothed for now
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