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What is the ideal setup for Dell Precision 3551 Intel Core i7-10850H?

RaterMusafir

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What is the ideal setup for the Dell Precision 3551? I am getting POWER error whenever I run TS bench. What is TVB that is shown in the Limits option?
 

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unclewebb

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The 10850H has a 45W TDP rating so a properly engineered laptop with this processor should be able to run at up to 45W without the CPU overheating or thermal throttling. Your screenshot shows a max temperature of one core of 95°C while the cores beside it are only at 76°C and 77°C even though all cores are running the exact same TS Bench task. That is almost always a sign that there is a problem with the heatsink. Have you ever done any maintenance? If blowing out the dust with compressed air does not lower the temperatures then consider replacing the thermal paste with Honeywell PTM 7950.

Dell Precision laptops used to be big rugged beasts with plenty of performance and excellent cooling. The 3551 is listed as a Lightweight Workstation. It is possible that Dell compromised the excellent cooling of previous models. Thin and light laptops are not the best when it comes to maximum performance. Your CPU is overheating when power consumption is only 35W.

Your CPU is also power limit throttling when power consumption is only at 20W. If you look in the TPL window you will see that the MMIO PL1 power limit is set to only 20W. That is why you are seeing power limit throttling at such a low power consumption value. I would check the MMIO Lock box to get rid of this low ball power limit. It would be best to fix the cooling if possible before adjusting the power limits.

TVB throttling happens when the CPU reaches approximately 70°C. You can disable this type of throttling by clearing the Thermal Velocity Boost box in the FIVR window. It would definitely be best to fix the cooling problem first before trying to disable TVB throttling.

Edit - PC Mag tested a Dell Precision 3551 with the higher end 10885H CPU. It was deliberately limited to 35W which reduced maximum performance.

Unfortunately, not only is it overkill for an affordable system, but it's handicapped in the Precision 3551. How so? Dell runs the CPU at 35 watts here instead of its usual 45 watts, so the system noticeably trailed the only other Core i9-10885H laptop we've tested (the HP ZBook Create G7) in our processing benchmarks.
 
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What is the ideal setup for the Dell Precision 3551? I am getting POWER error whenever I run TS bench. What is TVB that is shown in the Limits option?
As already mentioned, your system has a thermal problem, probably a bad application of thermal paste, where one or more cores have temperatures almost 20°C higher than the others.

This causes thermal throttling to occur much sooner than it should...

The solution is to clean the original thermal paste and replace it with a quality compound like PTM 7950.

You can change to Ultra Performance in the Dell Power Manager application and this way your fan will increase the speed, also increasing the power limits.
 
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The 10850H has a 45W TDP rating so a properly engineered laptop with this processor should be able to run at up to 45W without the CPU overheating or thermal throttling. Your screenshot shows a max temperature of one core of 95°C while the cores beside it are only at 76°C and 77°C even though all cores are running the exact same TS Bench task. That is almost always a sign that there is a problem with the heatsink. Have you ever done any maintenance? If blowing out the dust with compressed air does not lower the temperatures then consider replacing the thermal paste with Honeywell PTM 7950.

Dell Precision laptops used to be big rugged beasts with plenty of performance and excellent cooling. The 3551 is listed as a Lightweight Workstation. It is possible that Dell compromised the excellent cooling of previous models. Thin and light laptops are not the best when it comes to maximum performance. Your CPU is overheating when power consumption is only 35W.

Your CPU is also power limit throttling when power consumption is only at 20W. If you look in the TPL window you will see that the MMIO PL1 power limit is set to only 20W. That is why you are seeing power limit throttling at such a low power consumption value. I would check the MMIO Lock box to get rid of this low ball power limit. It would be best to fix the cooling if possible before adjusting the power limits.

TVB throttling happens when the CPU reaches approximately 70°C. You can disable this type of throttling by clearing the Thermal Velocity Boost box in the FIVR window. It would definitely be best to fix the cooling problem first before trying to disable TVB throttling.

Edit - PC Mag tested a Dell Precision 3551 with the higher end 10885H CPU. It was deliberately limited to 35W which reduced maximum performance.
Their 3xxx series is basically like the latitude 5xxx and the 7xxx series are the beefy precisions these days...
The 5xxx are xps based ones
 
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