Sign in with
Sign up | Sign in
Your question
Solved

Hit the wall OCing Linked/Sync'd

Last response: in Overclocking
Share
January 18, 2011 5:22:53 PM

I've been trying different clock settings and speeds, and while I can attain greater speeds w/ stability unlinked, I cannot understand why I cannot post past 3.61G linked/sync'd. Anything higher than 1700 QDR halts the sysytem just before the memory check. Throwing more voltage did not seem to matter.

Q9550, EVGA 780i SLI FTW, 6gb Corsair Dominator (2,2,1,1), Corsair TX 950 PSU, H50 cpu cooler.

Below are the specifics:
  1. CPU Properties:
  2. CPU Type QuadCore Intel Core 2 Quad Q9550
  3. CPU Alias Yorkfield
  4. CPU Stepping E0
  5. Engineering Sample No
  6. CPUID CPU Name Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz
  7. CPUID Revision 0001067Ah
  8. CPU VID 1.2250 V
  9.  
  10. CPU Speed:
  11. CPU Clock 3612.5 MHz (original: 2833 MHz, overclock: 28%)
  12. CPU Multiplier 8.5x
  13. CPU FSB 425.0 MHz (original: 333 MHz, overclock: 28%)
  14. Memory Bus 425.0 MHz
  15. DRAM:FSB Ratio 1:1
  16.  
  17. CPU Cache:
  18. L1 Code Cache 32 KB per core
  19. L1 Data Cache 32 KB per core
  20. L2 Cache 2x 6 MB (On-Die, ECC, ASC, Full-Speed)
  21.  
  22. Motherboard Properties:
  23. Motherboard ID 01/23/2009-132-YW-E178-F-6A61IEV1C-00
  24. Motherboard Name EVGA E178 (2 PCI, 1 PCI-E x1, 3 PCI-E x16, 4 DDR2 DIMM, Audio, Dual Gigabit LAN, IEEE-1394)
  25.  
  26. Chipset Properties:
  27. Motherboard Chipset nVIDIA nForce 780i SLI
  28. Memory Timings 5-5-5-15 (CL-RCD-RP-RAS)
  29. Command Rate (CR) 2T
  30. DIMM1: Corsair Dominator CM2X2048-8500C5D 2 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
  31. DIMM2: Corsair Dominator CM2X2048-8500C5D 2 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
  32. DIMM3: Corsair Dominator CM2X1024-8500C5D 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
  33. DIMM4: Corsair Dominator CM2X1024-8500C5D 1 GB DDR2-800 DDR2 SDRAM (5-5-5-18 @ 400 MHz) (4-4-4-13 @ 270 MHz)
  34.  
  35. BIOS Properties:
  36. System BIOS Date 01/23/09 (Latest)
  37. Video BIOS Date 09/16/09
  38. Award BIOS Type Phoenix - AwardBIOS v6.00PG
  39. Award BIOS Message Release Number I780SZ17
  40. DMI BIOS Version 6.00 PG
  41.  
  42. Graphics Processor Properties:
  43. Video Adapter ATI Radeon HD 5850 1GB GDDR5
  44. GPU Code Name Cypress Pro (PCI Express 2.0 x16 1002 / 6899, Rev 00)
  45. GPU Clock 157 MHz (original: 725 MHz)
  46. Memory Clock 300 MHz (original: 1000 MHz)
  47.  
  48. Sensor Properties:
  49. Sensor Type Winbond W83627DHG (ISA 290h)
  50. GPU Sensor Type Diode, Volterra VT1165 (ATI-Diode, 70h)
  51. Motherboard Name EVGA E178
  52. Chassis Intrusion Detected Yes
  53.  
  54. Temperatures:
  55. Motherboard 34 °C (93 °F)
  56. CPU 34 °C (93 °F)
  57. CPU #1 / Core #1 44 °C (111 °F)
  58. CPU #1 / Core #2 40 °C (104 °F)
  59. CPU #1 / Core #3 40 °C (104 °F)
  60. CPU #1 / Core #4 40 °C (104 °F)
  61. SPP 57 °C (135 °F)
  62. MCP 64 °C (147 °F)
  63. GPU Diode (DispIO) 48 °C (118 °F)
  64. GPU Diode (MemIO) 51 °C (124 °F)
  65. GPU Diode (Shader) 48 °C (118 °F)
  66. GPU VRM 39 °C (102 °F)
  67. Seagate ST3500320AS 29 °C (84 °F)
  68. WDC WD1002FAEX-00Y9A0 31 °C (88 °F)
  69. WDC WD3000GLFS-01F8U0 31 °C (88 °F)
  70.  
  71. Cooling Fans:
  72. CPU 1406 RPM
  73. nForce 3103 RPM
  74. GPU 1195 RPM (22%)
  75.  
  76. Voltage Values:
  77. CPU Core 1.32 V
  78. +3.3 V 3.18 V
  79. +5 V 4.92 V
  80. +12 V 11.99 V
  81. +5 V Standby 4.82 V
  82. VBAT Battery 3.06 V
  83. 3.3V Dual 3.18 V
  84. FSB VTT 1.31 V
  85. DIMM 2.14 V
  86. GPU VRM 0.95 V
  87.  
  88. Current Values:
  89. GPU VRM 7.84 A
  90. Debug Info F FF 78 FF / FF FF
  91. Debug Info T 31 34 34 / 255
  92. Debug Info V A5 86 C7 C7 A4 C0 E3 (01)
  93. Debug Info I C1 A025


Any insights as to why I am stuck at 3.6 L/S would be appreciated.
a b à CPUs
a c 100 K Overclocking
January 18, 2011 6:44:05 PM

Ram issue? Have you tried reducing the ratio or increasing RAM timings?
January 18, 2011 11:45:40 PM

I can get it running well on "auto" ratio. Not sure what to try with the timings, any suggestions? Linked & sync'd is the problem.
Cor Dom DDR2 8500 1066, running 5-5-5-15-2T - 2.15v
Related resources
a b à CPUs
a b K Overclocking
January 19, 2011 12:07:28 AM

madmankya said:
I can get it running well on "auto" ratio. Not sure what to try with the timings, any suggestions? Linked & sync'd is the problem.
Cor Dom DDR2 8500 1066, running 5-5-5-15-2T - 2.15v


I have a question and a suggestion.

What OP/SYS are you using?

Try removing the two 1G sticks and see if that helps.

CDQ's seem to not OC as well when all the memory slots are being used. If you must use the extra memory slots I would use the same value/mfg. memory as in the first two slots. 2 X 2G so you would have 8G total memory.
January 19, 2011 12:16:00 AM

win 98 (j/k) 7-64
OK, will try.

Best solution

a b à CPUs
a b K Overclocking
January 19, 2011 12:22:19 AM
Share

madmankya said:
win 98 (j/k) 7-64
All Ram is Cor Dom first 2 are 2gb second 2 ARE 1GB- settings are the same (unless I'm missing something).


The two different value memory could be what is holding you back.

Give it a shot with just the 2G sticks and see if you have better luck.

All it will cost you is the time to do it.:) 
January 19, 2011 12:29:14 AM

BINGO! removed the two 1gb sticks and fired up Linked and sync'd first try at 3.72.
So, if I add 2x2gb of same exact ram (total of 8gb) should it still work or is the 4 slots the issue?
a b à CPUs
a b K Overclocking
January 19, 2011 12:45:59 AM

madmankya said:
BINGO! removed the two 1gb sticks and fired up Linked and sync'd first try at 3.72.
So, if I add 2x2gb of same exact ram (total of 8gb) should it still work or is the 4 slots the issue?


Now that is the question!

I do not know.:( 

It will depend on your particular hardware. You should have a much better chance at achieving a higher OC than what you were experiencing.

These Q9550 will normally run ~ 3.83GHz with quality components but sometimes using all four slots do seem to limit your OC with them.

Using 1066 limits your theoretical FSB to 533(4.5GHz) assuming your M/BD has settings that high and you can keep that thing cool.

Good luck to what ever you decide. :sol: 
January 19, 2011 1:49:21 AM

Thanks for the help. It may be hard to find that memory at a reasonable price too.
January 19, 2011 10:14:17 PM

Best answer selected by madmankya.
a b à CPUs
a b K Overclocking
January 20, 2011 12:38:08 AM

madmankya said:
Thanks for the help. It may be hard to find that memory at a reasonable price too.


Found this. Newegg doesn't seem to carry it any more.
!