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Need expert overclocking help ,q9650 780i ftw

post #1 of 59
Thread Starter 
Hey guys please help me out here. I cannot keep my overclock stable. I believe I am being done in by using 4 dimms, 8 gigs of memory.

My dream is to have a 4ghz stable overclock with 8 gigs of ram, is this possible?

System specs.

q9650 , watercooled, 26c idle 45 under load @ 1.38v

2gb DDR2 1066 gskill 5 5 5 15 ramx4 sticks.

780i ftw


Also should be noted that I have 3x gtx 280s, on waterblocks.

PSU is a 1200watt thermaltake, rails tested out good on ohm meter.


I know none of this stuff is new and shiny, but I still need help. I have upped fsb to 1.25 (last green step) spp/nb 1.4

MCP /sb1 1.525v
ht 1.25v
aux auto 1.5v
gtrleds auto

Multiplier 9x

Linked memory , running in synced mode around 900. Timings set to 5 5 5 15 2t.

Fails pretty quickly running p95

Where do I go from here?
Edited by bloomstomb - 4/14/11 at 9:09am
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post #2 of 59
First make sure it is those 8GB of mem that is hindering your stability. Take out 4GB and try again.

If stable using 2x2GB, install rest of mem and begin tweaking mem timings/speed
    
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post #3 of 59
Thread Starter 
Quote:
Originally Posted by turrican9 View Post
First make sure it is those 8GB of mem that is hindering your stability. Take out 4GB and try again.

If stable using 2x2GB, install rest of mem and begin tweaking mem timings/speed
I am at that point now. The mem/mobo is deffinetly the issue here. Could you be a little more specific in how to go about tweaking the ram?

Also, right now here are some advanced settings in memory

trrd 4
trc 32
twr 6
twtr 10
tref 7.8 us
trfc 127.5ns

These look ok?

Memory voltage is 2-2.1 v rated. I set it to 2.1 v
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post #4 of 59
Quote:
Originally Posted by bloomstomb View Post
I am at that point now. The mem/mobo is deffinetly the issue here. Could you be a little more specific in how to go about tweaking the ram?

Also, right now here are some advanced settings in memory

trrd 4
trc 32
twr 6
twtr 10
tref 7.8 us
trfc 127.5ns

These look ok?

Memory voltage is 2-2.1 v rated. I set it to 2.1 v
Try 6-6-6-18. If that works, try tweaking. Down one at a time to 5. Also, you have a nVidia mobo. So you should be able to unlink and clock mem down?
    
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post #5 of 59
Thread Starter 
Quote:
Originally Posted by turrican9 View Post
Try 6-6-6-18. If that works, try tweaking. Down one at a time to 5. Also, you have a nVidia mobo. So you should be able to unlink and clock mem down?

Yeah I can deffinetly clock the mem down. How far down do you want me to clock it down?
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post #6 of 59
Quote:
Originally Posted by bloomstomb View Post
Yeah I can deffinetly clock the mem down. How far down do you want me to clock it down?
Try 800MHz and 5-5-5-15. If it's stable, then fine.
    
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post #7 of 59
Thread Starter 
Quote:
Originally Posted by turrican9 View Post
Try 800MHz and 5-5-5-15. If it's stable, then fine.
OK , just did that. I also increased cpu voltage to 1.42.

Right now idling at 30c.

This black ice 140 is kicking butt on the cpu.


EDIT. Worker 2 just failed almost rigth away. Bah.
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post #8 of 59
Without proper GTL settings 4.0 is going to be difficult. I've heard some 780i can be flashed to 790i which have the right settings, but you'd have to talk with people who know the board well.

More VCore is not going to help you unfortunately. You should bump your CPU multiple down, use lower VCore, and work on getting the FSB/RAM stable by tweaking and testing with Prime Blend or Prime Large FFT.

Without the GTLs, Q9xxx seem to top out around 3.7-3.8.
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post #9 of 59
Quote:
Originally Posted by bloomstomb View Post
OK , just did that. I also increased cpu voltage to 1.42.

Right now idling at 30c.

This black ice 140 is kicking butt on the cpu.
In my P5Q-E, P45 motherboard, I am stable using 8GB (4x2GB) when at 1:1. Q9650 is at 4.2GHz (467FSB x9) and mem at 934MHz 5-5-5-15.

However, not stable with 8GB if using the 4:5 or 5:6 mem multi. So instead I'm using 2x2GB + 2x1GB (single sided sticks) for a total of 6GB. This configuration overclocks just as well as 2x2GB in my P5Q-E. So mem is rock stable at 1167MHz 6-5-6-15-1.96v. when 6GB.

I have Crucial Ballistix PC6400 4-4-4-12 2.0v (5-5-5-15 2.0v EPP at 1000MHz).
    
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M500 240GB SSD for OS, 2x256GB M4's Raid0 for ... Generic Windows 10 Pro 64 Bit Asus VK266H 
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Corsair RM 750x Cooler Master Storm Scout 
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CPUMotherboardGraphicsRAM
Core i7 2600K@4.5GHz Asus P8P67 Pro 3.0 (B3) EVGA GTX 1070 SC Black Edition 4x4GB Corsair Vengeance 1600-9-9-9-24-2t-1.5v 
Hard DriveOptical DriveOSMonitor
M500 240GB SSD for OS, 2x256GB M4's Raid0 for ... Generic Windows 10 Pro 64 Bit Asus VK266H 
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Corsair RM 750x Cooler Master Storm Scout 
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post #10 of 59
Quote:
Originally Posted by 2thAche View Post
Without proper GTL settings 4.0 is going to be difficult. I've heard some 780i can be flashed to 790i which have the right settings, but you'd have to talk with people who know the board well.

More VCore is not going to help you unfortunately. You should bump your CPU multiple down, use lower VCore, and work on getting the FSB/RAM stable by tweaking and testing with Prime Blend or Prime Large FFT.
He has a Q9650 with a x9 multi. So no fine tuning of the GTL's should not be needed up to 4050MHz at least. And he has already tested stable using 4GB RAM and 4GHz.
Edited by turrican9 - 4/14/11 at 9:44am
    
CPUMotherboardGraphicsRAM
Core i7 2600K@4.5GHz Asus P8P67 Pro 3.0 (B3) EVGA GTX 1070 SC Black Edition 4x4GB Corsair Vengeance 1600-9-9-9-24-2t-1.5v 
Hard DriveOptical DriveOSMonitor
M500 240GB SSD for OS, 2x256GB M4's Raid0 for ... Generic Windows 10 Pro 64 Bit Asus VK266H 
PowerCase
Corsair RM 750x Cooler Master Storm Scout 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
Core i7 2600K@4.5GHz Asus P8P67 Pro 3.0 (B3) EVGA GTX 1070 SC Black Edition 4x4GB Corsair Vengeance 1600-9-9-9-24-2t-1.5v 
Hard DriveOptical DriveOSMonitor
M500 240GB SSD for OS, 2x256GB M4's Raid0 for ... Generic Windows 10 Pro 64 Bit Asus VK266H 
PowerCase
Corsair RM 750x Cooler Master Storm Scout 
  hide details  
Reply
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