F5F Stay Refreshed Hardware Desktop Poor build quality and inadequate VRM support.

Poor build quality and inadequate VRM support.

Poor build quality and inadequate VRM support.

I
iiMiaaa
Member
200
08-04-2016, 06:51 AM
#1
Entry-level motherboards with VRM (B450m S2H) tend to heat up the CPU faster and incur less clock boosting overhead.
I
iiMiaaa
08-04-2016, 06:51 AM #1

Entry-level motherboards with VRM (B450m S2H) tend to heat up the CPU faster and incur less clock boosting overhead.

A
Atomic_Spray
Member
50
08-04-2016, 12:41 PM
#2
A low-grade board lacks sufficient power to run components like a 3700X, causing the CPU to operate at its base frequency or lower.
A
Atomic_Spray
08-04-2016, 12:41 PM #2

A low-grade board lacks sufficient power to run components like a 3700X, causing the CPU to operate at its base frequency or lower.

M
Miyuumi
Senior Member
543
08-08-2016, 10:40 AM
#3
It doesn't raise the CPU temperature further and the reduced clock boosting cost is somewhat uncertain. The VRM (the system that transforms 12 volts into the voltage needed by the processor) can operate safely up to about 100°C. Based on the amount of power the processor uses, it may get warmer a bit more (due to inefficiencies). If the processor uses minimal energy—such as most 4-core chips or certain 6-core models when not overclocked—the energy draw stays low enough that the VRM never hits those high temperatures. For more demanding chips, that peak heat can occasionally occur. A processor doesn't maintain a steady power level like a light bulb; it changes automatically depending on workload. When tasks are light, the processor lowers its speed or shuts down parts to conserve energy. For instance, a quad-core chip like Ryzen 2200G or Ryzen 1400 might use around 40 watts at full speed across all cores, but only 10–20 watts when idle (like during streaming or reading). During idle periods, the VRM gradually warms from around 25–30°C up to about 40–50°C, dissipating heat through the motherboard and fans. When you launch a power-hungry program, the processor draws 40 watts or more, causing the VRM to generate more heat. This leads to a gradual rise in temperature, typically reaching 60–70°C. With a heatsink attached, it may take about 5–10 minutes to hit around 55–60°C and stabilize. In contrast, an 8-core processor drawing 100 watts at full load will quickly push the VRM to 85–90°C within a minute. With a heatsink, reaching 90–100°C might take 5–10 minutes or the heatsink could prevent it entirely. In both cases, the temperatures stay well under 90–100°C. Now, let's consider an 8-core model consuming 100 watts at full capacity. When idle, the same principles apply—temperature rises slowly to 40–50°C and then stabilizes. With a heatsink, stabilization could take up to 10 minutes. If the temperature exceeds 90°C, the BIOS and VRM controller will issue a warning to the CPU: "Reduce power usage and give me some time to cool." The CPU will then lower its speed, cut back on turbo boost, or even pause temporarily to avoid overheating. As power consumption drops, the VRM generates less heat, gradually cooling back down—often within a couple of minutes. Eventually, the BIOS or VRM may allow full performance again, provided the temperature drops below the critical threshold. This balancing act ensures stability and longevity even under heavy loads.
M
Miyuumi
08-08-2016, 10:40 AM #3

It doesn't raise the CPU temperature further and the reduced clock boosting cost is somewhat uncertain. The VRM (the system that transforms 12 volts into the voltage needed by the processor) can operate safely up to about 100°C. Based on the amount of power the processor uses, it may get warmer a bit more (due to inefficiencies). If the processor uses minimal energy—such as most 4-core chips or certain 6-core models when not overclocked—the energy draw stays low enough that the VRM never hits those high temperatures. For more demanding chips, that peak heat can occasionally occur. A processor doesn't maintain a steady power level like a light bulb; it changes automatically depending on workload. When tasks are light, the processor lowers its speed or shuts down parts to conserve energy. For instance, a quad-core chip like Ryzen 2200G or Ryzen 1400 might use around 40 watts at full speed across all cores, but only 10–20 watts when idle (like during streaming or reading). During idle periods, the VRM gradually warms from around 25–30°C up to about 40–50°C, dissipating heat through the motherboard and fans. When you launch a power-hungry program, the processor draws 40 watts or more, causing the VRM to generate more heat. This leads to a gradual rise in temperature, typically reaching 60–70°C. With a heatsink attached, it may take about 5–10 minutes to hit around 55–60°C and stabilize. In contrast, an 8-core processor drawing 100 watts at full load will quickly push the VRM to 85–90°C within a minute. With a heatsink, reaching 90–100°C might take 5–10 minutes or the heatsink could prevent it entirely. In both cases, the temperatures stay well under 90–100°C. Now, let's consider an 8-core model consuming 100 watts at full capacity. When idle, the same principles apply—temperature rises slowly to 40–50°C and then stabilizes. With a heatsink, stabilization could take up to 10 minutes. If the temperature exceeds 90°C, the BIOS and VRM controller will issue a warning to the CPU: "Reduce power usage and give me some time to cool." The CPU will then lower its speed, cut back on turbo boost, or even pause temporarily to avoid overheating. As power consumption drops, the VRM generates less heat, gradually cooling back down—often within a couple of minutes. Eventually, the BIOS or VRM may allow full performance again, provided the temperature drops below the critical threshold. This balancing act ensures stability and longevity even under heavy loads.