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Cannot OC IV Formula to run 2000mhz RAM, need help!

post #1 of 13
Thread Starter 
Hey Gents,

I've been trying to get my RAM sticks to run at the rated 2000mhz CL 8-8-8-24 for quite a while now.

RAM Description: Corsair Dominator GT 4GB DDR3-2000 (PC3-16000, 8-8-8-24, CMG4GXM2A2000C8). I realise that these sticks are not listed as compatible @2000mhz within my motherboards manual, however this does not deter me as I have seen some people succesfully OC the RAM.

I've scoured these forums and have managed to try the following BIOS settings in an effort to get these to work.

AI OC Tuner: Manual
CPU Ratio: 16
CPU Bus: 250
DRAM Freq: 2000 @ 8-8-8-24 2T
CPU/NB Freq: 3000
HT Link: 2000
CPU Volt: 1.375v
CPU/NB Volt: 1.3v
CPU VDDA: Auto
DRAM VOLT: 1.65v or 1.75v (both tested)
Rest of Voltages: Auto
CPU Load Line: FULL CALLIBRATION
CPU/NB Load Line: FULL CALLIBRATION
Spectrum Settings: Disabled

What happens is the PC posts but when it begins to load Windows 7, the grey progress bar happens instead of the four coloured circles (forming a window) and then simply restarts the PC.

I've tested the above settings with just setting the DRAM at 1333 at stock timings and voltage and it booted into windows no problem (even with 3000 CPU/NB freq and CPU temp reaching roughly 54 celsius under load).

I can however easily set the ram at 1600mhz 6-6-6-18 @ 1.65v easily. Is this a good alternative? I can use this setting without having to OC the MB/CPU.

So how can I alter the above setup? add more CPU/NB voltage?
Unicron
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CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
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AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
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ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
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Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
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post #2 of 13
You've got Elpida Hypers, sir
If you can't manage 2000 8-8-8, you could try 1600 6-6-6 or 1800 7-7-7 which are both great results.
You might have a somewhat lower-binned set considering you need 1.65V for 1600 6-6-6 (higher-binned ones can do this at 1.5V). You might want to try a compromise, i.e. 1800 7-7-7, as I said.

You might also want to play with which slots the RAM are in, CH. IV can be picky and certain slots may be better for overclocking than others.
post #3 of 13
Thread Starter 
Heya, I actually haven't tried running the pair at 1.5v for 6-6-6-18, I just set them on 1.65 just for piece of mind.

Would you think 1800 cal 7 be better then 1600 cal 6? In the end I'd rather be running either of these two during summer but when winter rolls by I would love to OC and maintain 2000 cal 8.

Another question, what specifically is the difference between 1t and 2t, and is it possible to enable 2T at the lower speeds (1600) if it gives a benefit.

FYI all: bios 1304 being used.

EDIT: ram is in the two red slots (1 and 3) they are the slots specifically stated for ocing in the mb manual.
Edited by sbsolarski - 1/23/11 at 5:22pm
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
  hide details  
Reply
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
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post #4 of 13
They'd be about equal; you might be able to manage in between 1800-2000 at CL7 which would probably end up slightly better.
1T and 2T just specify when data is first sent - during the first command or second command; i.e. rising vs. falling edge of the clock cycle in DDR. 2T is usually more stable, 1T tends to perform slightly better.
post #5 of 13
Thread Starter 
Thanks for the info mate, I'll try for like 1866 cl7 if I can't do 2000 cl8 here with advice from this board.
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
  hide details  
Reply
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
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post #6 of 13
i tried for about 5 minutes and gave up @ 1970 7-7-7, im sure if you tried harder it would work.
post #7 of 13
Thread Starter 
I shall try harder! but could you please point me in the right direction, which parameter should I tweak (list in OP) I was thinking bringing the CPU/NB past 1.3v but it already shows "red" and I'm just unsure if I want to do that. Can someone with a similar setup please comment on my BIOS config?
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
  hide details  
Reply
Unicron
(15 items)
 
  
CPUMotherboardGraphicsRAM
PII 1090T BE @ 4.0Ghz Asus Crosshair IV Formula 2x ATI ASUS 6970 CF 1600mhz 8-8-8-24 @1.5v 
Hard DriveOptical DriveCoolingOS
250Gb Samsung EVO 840 Pioneer DVD-RW Corsair H80 Windows 7 64bit 
MonitorKeyboardPowerCase
AOC q2770pqu Steelseries 7G HX1000W Corsair Antec 1200 
MouseMouse PadAudio
ROCCAT Kone Military Pure DOTA 2 Steelseries QCK ASUS Xonar Essence STX 
  hide details  
Reply
post #8 of 13
Id drop that NB freq down, and try to get them to run at their rated speeds w/o OC first
Maxi
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Maxi
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post #9 of 13
4 x 2GB 2000 MHz 7-7-7-21-28 90ns 1T @ 1.875v mprime 4 hour stable (I don't like to stress my box longer than that) w/ LLC [Auto], CPU-NB 3250 MHz @ 1.45v, HT 2250 MHz @ 1.25v, NB @ 1.35v, SB @ 1.2455v. Give your sticks some more voltage and don't be afraid of the yellow, or the red! I prefer my daily CPU clock at 4.35 MHz so I dropped down to 1984 MHz @ 7-7-7-21-28 90ns 1T @ 1.8375v for the right multiplier. It has taken me over two months of daily (yes, daily) benching and stability testing (mprime + custom workload blend) to push those numbers (I am still not content), so take your time.
ThermoChilled
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Topre Realforce 87UKB Corsair CMPSU-850AX Lian Li Tyr PC-X500FX Logitech G9x 
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ThermoChilled
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CPUMotherboardGraphicsRAM
Phenom II X6 1100T ASUS Crosshair IV Extreme EVGA GTX 580 SuperClocked STT WX200UB2G7 
Hard DriveOptical DriveOSMonitor
VelociRaptor WD6000HLHX Sony Optiarc AD-7260S Arch Linux x86_64 + JWM NEC MultiSync PA241W-BK 
KeyboardPowerCaseMouse
Topre Realforce 87UKB Corsair CMPSU-850AX Lian Li Tyr PC-X500FX Logitech G9x 
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ZOWIE GEAR P-TF 
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post #10 of 13
Check out CPU-NB vs. Timings and see how lower frequencies can be somewhat offset with a high CPU-NB.
ThermoChilled
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1100T ASUS Crosshair IV Extreme EVGA GTX 580 SuperClocked STT WX200UB2G7 
Hard DriveOptical DriveOSMonitor
VelociRaptor WD6000HLHX Sony Optiarc AD-7260S Arch Linux x86_64 + JWM NEC MultiSync PA241W-BK 
KeyboardPowerCaseMouse
Topre Realforce 87UKB Corsair CMPSU-850AX Lian Li Tyr PC-X500FX Logitech G9x 
Mouse Pad
ZOWIE GEAR P-TF 
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ThermoChilled
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom II X6 1100T ASUS Crosshair IV Extreme EVGA GTX 580 SuperClocked STT WX200UB2G7 
Hard DriveOptical DriveOSMonitor
VelociRaptor WD6000HLHX Sony Optiarc AD-7260S Arch Linux x86_64 + JWM NEC MultiSync PA241W-BK 
KeyboardPowerCaseMouse
Topre Realforce 87UKB Corsair CMPSU-850AX Lian Li Tyr PC-X500FX Logitech G9x 
Mouse Pad
ZOWIE GEAR P-TF 
  hide details  
Reply
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