F5F Stay Refreshed Power Users Overclocking Higher CPU VTT and Vcore voltages significantly reduce MOBO and CPU lifespan.

Higher CPU VTT and Vcore voltages significantly reduce MOBO and CPU lifespan.

Higher CPU VTT and Vcore voltages significantly reduce MOBO and CPU lifespan.

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Xo_PVP_Girl_oX
Senior Member
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500
11-09-2024, 09:24 AM
#1
Hello! I recently attempted another overclock and encountered quite some serious stability issues when trying to increase it further. I followed the instructions from http://www.overclockers.com/3-step-guide...-i3-i5-i7/.
My system is quite old—2009 hardware, with 1080p gaming at 60fps or higher in titles like BF1 using high/ultra settings.
Components: Gigabyte GA-P55-UD3, P55, Socket-1156
Intel® Core™ i7-860 Processor @ 2.8GHz, first generation i7 Lynnfield OG delivers 8
ASUS GeForce GTX 1060 3GB DUAL
Crucial DDR3 1333MHz CL9 2GBx4
Corsair RM650x 650W PSU
512GB SSD, Windows 7
Standard settings: 133MHz BCLK with a x21 CPU multiplier.
My current overclock profile is:
CPU freq: 177BCLK x 21 = 3717MHz, HT enabled
Vcore: 1.216V
QPI/CPU VTT: 1.225V
Memory: 177BCLK x 8 = 1416MHz, no timing adjustments made as I’m familiar with the specs.
Default multiplier for RAM would be 133BCLK x 10 = 1333MHz.
Current voltages remain unchanged (1.5V default), which keeps power-saving features and CPU turbo boost active. Load-line calibration is turned on.
During gaming, CPU temps hover around 60°C, giving me plenty of margin.
My goal is to push the frequency to 4.0GHz+, and reading old forum discussions suggests it’s achievable. A 200BCLK already runs stably with a VTT voltage of 1.31V; adjusting the CPU multiplier to x19 (3800MHz) or x20 (4000MHz) causes instability after short Prime95 sessions, even at 1.31V.
I’m wondering if, given this outdated system, it’s worth increasing both VTT and Vcore to around 4.0–4.5V for stability, or should I settle for the current setup which has already delivered solid performance?
Additionally, if I manage to stabilize a 200BCLK at 20 or 21 MHz to hit 4GHz, what’s the best approach for RAM speeds? The safest option would be using the x6 multiplier (1200MHz), followed by x8 (1600MHz). Since memory speed has minimal impact on gaming, I’d prefer to keep it stable. Timings also play a role—can I get stock 1333MHz without lowering BCLK?
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X
Xo_PVP_Girl_oX
11-09-2024, 09:24 AM #1

Hello! I recently attempted another overclock and encountered quite some serious stability issues when trying to increase it further. I followed the instructions from http://www.overclockers.com/3-step-guide...-i3-i5-i7/.
My system is quite old—2009 hardware, with 1080p gaming at 60fps or higher in titles like BF1 using high/ultra settings.
Components: Gigabyte GA-P55-UD3, P55, Socket-1156
Intel® Core™ i7-860 Processor @ 2.8GHz, first generation i7 Lynnfield OG delivers 8
ASUS GeForce GTX 1060 3GB DUAL
Crucial DDR3 1333MHz CL9 2GBx4
Corsair RM650x 650W PSU
512GB SSD, Windows 7
Standard settings: 133MHz BCLK with a x21 CPU multiplier.
My current overclock profile is:
CPU freq: 177BCLK x 21 = 3717MHz, HT enabled
Vcore: 1.216V
QPI/CPU VTT: 1.225V
Memory: 177BCLK x 8 = 1416MHz, no timing adjustments made as I’m familiar with the specs.
Default multiplier for RAM would be 133BCLK x 10 = 1333MHz.
Current voltages remain unchanged (1.5V default), which keeps power-saving features and CPU turbo boost active. Load-line calibration is turned on.
During gaming, CPU temps hover around 60°C, giving me plenty of margin.
My goal is to push the frequency to 4.0GHz+, and reading old forum discussions suggests it’s achievable. A 200BCLK already runs stably with a VTT voltage of 1.31V; adjusting the CPU multiplier to x19 (3800MHz) or x20 (4000MHz) causes instability after short Prime95 sessions, even at 1.31V.
I’m wondering if, given this outdated system, it’s worth increasing both VTT and Vcore to around 4.0–4.5V for stability, or should I settle for the current setup which has already delivered solid performance?
Additionally, if I manage to stabilize a 200BCLK at 20 or 21 MHz to hit 4GHz, what’s the best approach for RAM speeds? The safest option would be using the x6 multiplier (1200MHz), followed by x8 (1600MHz). Since memory speed has minimal impact on gaming, I’d prefer to keep it stable. Timings also play a role—can I get stock 1333MHz without lowering BCLK?

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Z
ZenYcca
Member
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61
11-09-2024, 09:24 AM
#2
Minor adjustment; I attempted 200BCLK x 20 with a 1.35Vcore, ran Prime95 and everything functioned smoothly, CPU at 80C. Then I noticed a clear burnt odor, so I stopped everything immediately and allowed it to cool for ten minutes. Writing from the same machine now, I'm relieved it's working properly, marking the conclusion of my recent overclocking attempts. 😀
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Z
ZenYcca
11-09-2024, 09:24 AM #2

Minor adjustment; I attempted 200BCLK x 20 with a 1.35Vcore, ran Prime95 and everything functioned smoothly, CPU at 80C. Then I noticed a clear burnt odor, so I stopped everything immediately and allowed it to cool for ten minutes. Writing from the same machine now, I'm relieved it's working properly, marking the conclusion of my recent overclocking attempts. 😀

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