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How do you know when you are reaching the limits of your Mobo OC ability?

post #1 of 6
Thread Starter 
I am curious if there is anything readily apparent when you start to reach or exceed the OC capacity of your motherboard. It seems that the main difference between mobo's designed for OC and standard use, is the power options on the board?

I am trying to chase down some issues i am having with my CPU and GPU OC on my Gigabyte x58-USB3 and i'm wondering if i'm just over exerting the thing lol.

main thing i'm seeing is hard locks of the whole pc, when i start to adjust my GPU OC. Temps are extremely low, which leaves me to think it may be some sort of power issue.
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Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
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Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
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Nothing Special
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Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
Hard DriveCoolingCoolingCooling
Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
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post #2 of 6
The Gigabyte X58-USB3 can take pretty high BCLK, I tuned one beyond 215 easily, Ihave a habit of under volting the CPU PLL to 1.3v on most 920's and xeons it really helps out. 1.28v with only 4.0 seems kinda high but still not bad..

so anyway i would try lowering your PLL to 1.3 and make sure your uncore is set to 17x. and the clock ratio 36x

also if you want to write down your current settings i can help with a re-tune...

fyi your cpu will hit the bclk wall before your mobo does! this board is very good
post #3 of 6
some boards have better tuned BIOS for OC, as well as better signal integrity better build quality and so on. What are your settings? you aren't telling us your BLCK or your uncore, memory frequency, cpu frequency and so on.
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X99 Main Rig
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by freakb18c1 View Post

The Gigabyte X58-USB3 can take pretty high BCLK, I tuned one beyond 215 easily, Ihave a habit of under volting the CPU PLL to 1.3v on most 920's and xeons it really helps out. 1.28v with only 4.0 seems kinda high but still not bad..
so anyway i would try lowering your PLL to 1.3 and make sure your uncore is set to 17x. and the clock ratio 36x
also if you want to write down your current settings i can help with a re-tune...
fyi your cpu will hit the bclk wall before your mobo does! this board is very good

thanks for the info, right now i believe the oc is 4.2 @ 1.32 but i've been making changes all over the place so i'll take a look and post the settings when i get home.
Nothing Special
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CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
Hard DriveCoolingCoolingCooling
Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
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Win7 64-bit Antec Earthwatts 750w Corsair Graphite 600T 
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Nothing Special
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CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
Hard DriveCoolingCoolingCooling
Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
OSPowerCase
Win7 64-bit Antec Earthwatts 750w Corsair Graphite 600T 
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post #5 of 6
If you set the voltage too low the CPU might just need more voltage to run. That could explain the lockups.
     
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[Intel] Core i7 2630QM [Lenovo] 4239CTO [Intel](R) HD Graphics Family [NVIDIA] NVS 4200M  
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[Samsung] 4GB 1333MHz  [Corsair] 4GB 1333MHz [Patriot] Pyro 60GB Sata III  [Western Digital] Scorpio Black 500GB 7200rpm 1... 
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[Lenovo] DL-DT Drive [Microsoft] Windows 7 64-bit SP1 Professional Kubuntu 64bit 11.10 [LG] 15.6in 1600x900  
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post #6 of 6
Thread Starter 
I was able to pull the settings i currently have the pc set at. Simply judging from what you guys have already said, it looks like my OC is a mess. Any help getting it straight, is most appreciated (and rep'd)

CPU - 21x
QPI - 36x - 7200mhz
Uncore - 18x - 3600mhz

BCLK - 200
Memory SPD - 8 - 1600mhz
PCIe - 100mhz

Vcore - 1.34375v - CPU ID reads lower, i will post the actual. (EDIT - CPUID - CPUZ reads 1.328v)
QPI - 1.32v
PLL - 1.84v

QPI PLL - 1.2v
DRAM - 1.66v
Nothing Special
(16 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
Hard DriveCoolingCoolingCooling
Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
OSPowerCase
Win7 64-bit Antec Earthwatts 750w Corsair Graphite 600T 
  hide details  
Reply
Nothing Special
(16 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 D0 4.2ghz @ 1.45v Gigabyte X58-USB3 MSI HD7970 1100/1500@Stock 12gb Patriot Viper 2 Sector 7 DDR3 2000 
Hard DriveCoolingCoolingCooling
Patriot Pyro 120GB SSD + (3) 160GB WD in Raid5 Rasa 750 RS240 Kit Phobya Extreme 200mm Heatkiller 3.0 Radeon HD7970 GPU Block 
OSPowerCase
Win7 64-bit Antec Earthwatts 750w Corsair Graphite 600T 
  hide details  
Reply
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