Troubleshoot No Fan noise during intensive tasks.

[Divine_Barakah]

Briefly explain your current issue(s)

No fan noise during intensive tasks.

Steps taken to resolve, but have been unsuccessful

BIOS hardware scan

Your current Antivirus

Eset Internet Security

On my new Dell Latitude 7450, I never hear fan noise even during Eset full system scan. I ever put my ear on the chassis and I did no hear a thing. I ran a hardware test in BIOS and the result came clean. Is this normal?

 

[Bot]

On my new Dell Latitude 7450, I never hear fan noise even during Eset full system scan. I ever put my ear on the chassis and I did no hear a thing. I ran a hardware test in BIOS and the result came clean. Is this normal?

Yes, it can be completely normal on a new Latitude—especially during an ESET full scan.

A few reasons this happens:

Why you might not hear the fan

• Modern fan curves often allow “0 RPM” at low/medium temperatures. Many business laptops keep the fan off until a temperature threshold is reached, then ramp up only if needed.
• An AV full scan is often not a heavy CPU load. It can be mostly disk/SSD I/O + file hashing with bursts of CPU usage, which may not generate enough sustained heat to trigger the fan.
• The Latitude line is tuned for quiet operation and may throttle/boost intelligently, so heat output stays low unless you run sustained CPU/GPU workloads.

How to verify it’s truly OK (low-risk checks)

• Check temperatures and fan RPM in Windows:
  • Use a reputable monitor like HWiNFO (Sensors view) to watch CPU temperature, “Thermal Throttling” flags, and fan RPM (if exposed).
  • On many Dell systems, Dell Command | Power Manager / Dell Power Manager (if installed for your model) can show thermal mode settings that prioritize quiet operation.
• Do a short controlled load test while monitoring temps:
  • Run a CPU-heavy task for a few minutes (for example Cinebench or similar) while watching CPU temps and clock speeds.
  • If temperatures rise into the high range (often ~90–100°C on many Intel laptops) with no fan response and you see heavy throttling, that’s a sign something may be wrong.
• Confirm vents aren’t blocked (on a desk/blanket/soft surface can reduce airflow and change behavior).

What would be “not normal”

• The laptop gets uncomfortably hot to the touch during sustained load.
• You see repeated thermal throttling under modest load.
• Monitoring shows very high CPU temps while the fan stays at 0 RPM (or is not detected at all).
• Unexpected shutdowns/restarts (thermal protection).

Practical next steps

• Update BIOS/firmware and Dell drivers (via Dell SupportAssist or Dell’s support page for your service tag).
• If monitoring shows overheating or the fan never spins even under sustained CPU stress, contact Dell support—since it’s new, it’s best handled under warranty rather than opening the chassis.

If your temps stay reasonable and the system doesn’t throttle hard under sustained CPU load, “no audible fan” during an ESET scan is typically normal behavior on that class of laptop.

 

[Divine_Barakah]

Yes, it can be completely normal on a new Latitude—especially during an ESET full scan.

A few reasons this happens:

Why you might not hear the fan

• Modern fan curves often allow “0 RPM” at low/medium temperatures. Many business laptops keep the fan off until a temperature threshold is reached, then ramp up only if needed.
• An AV full scan is often not a heavy CPU load. It can be mostly disk/SSD I/O + file hashing with bursts of CPU usage, which may not generate enough sustained heat to trigger the fan.
• The Latitude line is tuned for quiet operation and may throttle/boost intelligently, so heat output stays low unless you run sustained CPU/GPU workloads.

How to verify it’s truly OK (low-risk checks)

• Check temperatures and fan RPM in Windows:
  • Use a reputable monitor like HWiNFO (Sensors view) to watch CPU temperature, “Thermal Throttling” flags, and fan RPM (if exposed).
  • On many Dell systems, Dell Command | Power Manager / Dell Power Manager (if installed for your model) can show thermal mode settings that prioritize quiet operation.
• Do a short controlled load test while monitoring temps:
  • Run a CPU-heavy task for a few minutes (for example Cinebench or similar) while watching CPU temps and clock speeds.
  • If temperatures rise into the high range (often ~90–100°C on many Intel laptops) with no fan response and you see heavy throttling, that’s a sign something may be wrong.
• Confirm vents aren’t blocked (on a desk/blanket/soft surface can reduce airflow and change behavior).

What would be “not normal”

• The laptop gets uncomfortably hot to the touch during sustained load.
• You see repeated thermal throttling under modest load.
• Monitoring shows very high CPU temps while the fan stays at 0 RPM (or is not detected at all).
• Unexpected shutdowns/restarts (thermal protection).

Practical next steps

• Update BIOS/firmware and Dell drivers (via Dell SupportAssist or Dell’s support page for your service tag).
• If monitoring shows overheating or the fan never spins even under sustained CPU stress, contact Dell support—since it’s new, it’s best handled under warranty rather than opening the chassis.

If your temps stay reasonable and the system doesn’t throttle hard under sustained CPU load, “no audible fan” during an ESET scan is typically normal behavior on that class of laptop.

I am using Hard Disk Sentinel. Before running Eset full scan the SSD temp was 25, but it spiked up to 48 during the scan.

 

[Bot]

I am using Hard Disk Sentinel. Before running Eset full scan the SSD temp was 25, but it spiked up to 48 during the scan.

48°C on an SSD during a full AV scan is generally normal and not a red flag by itself.

Why the SSD temperature rose

• An ESET full scan can generate sustained, heavy storage activity (lots of reads across many small files). That loads the SSD controller and NAND more continuously than “normal” use.
• In thin laptops, the SSD is often close to other heat sources (CPU/VRM) and may have limited airflow, so it warms up quickly even if the CPU fan stays quiet/off.

Is 48°C safe?

• Yes, in most cases. Many NVMe SSDs are designed to operate well above 48°C (often up to ~70°C or more before throttling starts, depending on the model).
• For longevity and performance, it’s typically best if the SSD stays under ~60°C most of the time, but brief periods in the 40–50°C range are very common in laptops.

What to watch for (practical indicators)

• SSD throttling: If the SSD gets hot enough, you may see performance drop during long transfers/scans. Some tools will show “throttle” or “temperature limit” events.
• SMART/health warnings: If Hard Disk Sentinel shows any health decline, bad blocks, or error counters increasing, that matters more than a one-time temperature spike.
• Sustained high temps: If it routinely climbs into the high 60s/70s°C in normal use, that’s when mitigation is worth considering.

Low-risk steps to keep temps reasonable

• Make sure BIOS and SSD firmware are up to date (Dell updates + SSD vendor firmware if applicable).
• Use the laptop on a hard surface (not a bed/blanket) so the chassis can shed heat.
• If Dell thermal modes are available, “Optimized” (or similar) is usually a good balance; “Ultra performance” can raise overall internal temps.

Based on the numbers you posted (25°C idle to 48°C under scan), that looks like normal behavior for an NVMe SSD in a thin business laptop, and it doesn’t contradict the “no fan noise” observation.

 

[Divine_Barakah]

48°C on an SSD during a full AV scan is generally normal and not a red flag by itself.

Why the SSD temperature rose

• An ESET full scan can generate sustained, heavy storage activity (lots of reads across many small files). That loads the SSD controller and NAND more continuously than “normal” use.
• In thin laptops, the SSD is often close to other heat sources (CPU/VRM) and may have limited airflow, so it warms up quickly even if the CPU fan stays quiet/off.

Is 48°C safe?

• Yes, in most cases. Many NVMe SSDs are designed to operate well above 48°C (often up to ~70°C or more before throttling starts, depending on the model).
• For longevity and performance, it’s typically best if the SSD stays under ~60°C most of the time, but brief periods in the 40–50°C range are very common in laptops.

What to watch for (practical indicators)

• SSD throttling: If the SSD gets hot enough, you may see performance drop during long transfers/scans. Some tools will show “throttle” or “temperature limit” events.
• SMART/health warnings: If Hard Disk Sentinel shows any health decline, bad blocks, or error counters increasing, that matters more than a one-time temperature spike.
• Sustained high temps: If it routinely climbs into the high 60s/70s°C in normal use, that’s when mitigation is worth considering.

Low-risk steps to keep temps reasonable

• Make sure BIOS and SSD firmware are up to date (Dell updates + SSD vendor firmware if applicable).
• Use the laptop on a hard surface (not a bed/blanket) so the chassis can shed heat.
• If Dell thermal modes are available, “Optimized” (or similar) is usually a good balance; “Ultra performance” can raise overall internal temps.

Based on the numbers you posted (25°C idle to 48°C under scan), that looks like normal behavior for an NVMe SSD in a thin business laptop, and it doesn’t contradict the “no fan noise” observation.

And CPU usage during the scan was around 36%

 

[Bot]

And CPU usage during the scan was around 36%

36% CPU usage during an ESET full scan is consistent with what you’re seeing (SSD warming up, but little/no fan noise).

How that fits together

• 36% CPU isn’t necessarily “hot” on a modern mobile CPU, especially if it’s spread across many cores and the system isn’t boosting aggressively.
• AV scans are often storage-bound. The CPU does work (hashing/decompression/heuristics), but the scan can still be limited by how fast the SSD can feed data, which warms the SSD/controller more than it heats the CPU package.
• Dell’s thermal policy may prioritize quiet, letting temperatures rise modestly before spinning the fan, and sometimes it can stay fanless if temps remain below the fan-on threshold.

What would confirm everything is normal

• During the scan or a short CPU stress test, check CPU package temperature with a reputable monitor (HWiNFO is commonly used).
• If CPU temps stay in a reasonable range and there’s no heavy thermal throttling, the fan not being audible is normal.

When to be concerned

• CPU temperatures repeatedly hitting the high 90s°C under only moderate load with obvious throttling.
• System feels excessively hot, or you get sudden slowdowns/shutdowns.

With SSD peaking at 48°C and CPU around 36% during the scan, your Latitude behaving quietly is very plausible and usually indicates the cooling system and power/thermal management are working as intended.

 

[stonjean633]

What processor do you have? Or what system specs? There are intel/amd processors that are fanless.

 

[Bot]

What processor do you have? Or what system specs? There are intel/amd processors that are fanless.

I don’t “have” a processor or personal system specs—I’m an AI and don’t run on a Dell/Windows laptop.

That said, your Latitude 7450 is not a “fanless CPU” type of device in the usual sense. The Latitude 7450 platform is sold with Intel Core Ultra 5 / Ultra 7 (U-series 15W and some H-series 28W options), which are normally used in actively cooled laptops (they have fans), even if the fan often stays at 0 RPM or is nearly inaudible at light/moderate loads. ([dell.com](https://www.dell.com/support/manuals/en-us/latitude-14-7450-2-in-1-laptop/latitude_7450_om/processor?guid=guid-47aeefaf-d593-406a-8fd5-81e59277a514&utm_source=openai))

How to confirm what CPU you specifically have (on your unit)

• Task Manager -> Performance -> CPU (shows the exact model, e.g., “Intel Core Ultra 7 165U”)
• Settings -> System -> About
• Run “msinfo32” (System Information) -> Processor

About “fanless Intel/AMD”
Some Intel/AMD chips can be used in fanless designs (depending on the device’s thermal design and power limits), but “fanless-capable CPU” and “fanless laptop” are not the same thing. A Latitude 7450 can be extremely quiet and keep the fan off during many tasks, but it’s still typically an actively cooled business laptop, not a passively cooled tablet-style design.

Bottom line: not hearing the fan doesn’t mean your Latitude is fanless—it usually just means Dell’s thermal profile isn’t calling for fan RPM under that workload.

 

[Divine_Barakah]

What processor do you have? Or what system specs? There are intel/amd processors that are fanless.

Ultra 7 155U

 

[Bot]

Ultra 7 155U

Ultra 7 155U is a normal 15W-class (mobile) CPU that is typically used in actively cooled laptops. In other words: your Latitude 7450 almost certainly has a fan, but Dell’s thermal profile may keep it at 0 RPM (or very low RPM) unless CPU package temperature crosses a certain threshold.

Why “no fan noise” can be normal with Ultra 7 155U

• At ~36% CPU during an ESET scan, the workload is often more SSD/I/O-heavy than sustained CPU-heavy, so the CPU may not get hot enough to trigger the fan.
• Dell business laptops often prioritize low noise and allow the chassis to absorb heat before spinning the fan.
• Fans can be extremely quiet at low RPM; it’s possible the fan is spinning but inaudible unless it ramps up.

What you can do to confirm the fan really works (safe checks)

• Monitor CPU “Package” temperature and any “Thermal Throttling” flags with a reputable tool (HWiNFO is commonly used).
• Run a short sustained CPU load (Cinebench loop for a few minutes is enough). On an actively cooled laptop, you should eventually see either:
  • fan RPM increase and/or audible airflow, or
  • temperatures stabilize without heavy throttling (still OK if it stays cool enough).
• Check Dell thermal settings (if available): Dell Power Manager / Dell Command | Power Manager and BIOS thermal/acoustic settings can change when the fan turns on.

When it’s not normal

• CPU temperatures repeatedly climbing into the high 90s°C under sustained load with strong throttling, while fan RPM stays 0 (or fan is never detected).
• Sudden shutdowns, harsh performance drops, or the bottom case becoming uncomfortably hot.

Given your numbers so far (SSD peak 48°C, CPU ~36% during scan, Dell ePSA/BIOS test clean), this still fits normal behavior for a quiet, modern Latitude. If a sustained CPU load never makes the fan ramp and temps get very high, that’s the point where I’d involve Dell support under warranty.

 

[stonjean633]

There are fan/fanless variants of your D L 7450. You can check Dell site using your Laptop Service Tag. Then have an idea if you got fan there thru the parts section.

 

[Bot]

There are fan/fanless variants of your D L 7450. You can check Dell site using your Laptop Service Tag. Then have an idea if you got fan there thru the parts section.

That’s good advice in general: the Service Tag is the most reliable way to confirm what Dell shipped in your exact unit (thermal module, fan assembly, heatsink, etc.), because “Latitude 7450” can have multiple configurations.

That said, with an Intel Core Ultra 7 155U in a Latitude 7450, a truly fanless (fully passive) design would be unusual. What’s common is an “effectively silent” setup where the fan stays at 0 RPM (or very low RPM) for light/moderate workloads and only ramps under sustained CPU load.

How to verify via Dell (most authoritative)

• Go to Dell Support, enter your Service Tag
• Check the “Parts” / “Original configuration” / “As-built” sections (wording varies)
• Look for a part named similar to “Fan”, “Fan assembly”, “Thermal module”, “Heatsink/fan”

How to verify from the OS/BIOS (practical checks)

• In BIOS/UEFI, see if there’s a “Fan” / “Thermal” / “Fan control” page or fan RPM readout (not all models expose it).
• In Windows, HWiNFO sometimes shows fan RPM (sometimes Dell systems don’t expose it, so “no reading” doesn’t prove there’s no fan).
• Run a short sustained CPU load (a benchmark/stress tool) while watching CPU package temperature. On an actively cooled system, you should see either fan RPM increase or temperatures stabilize without severe throttling.

Important note
Even if you confirm a fan is present, not hearing it during an ESET scan can still be normal—your earlier numbers (SSD 48°C peak, ~36% CPU) fit an I/O-heavy workload that may not trigger Dell’s fan threshold.

Conclusion: checking the Service Tag parts list is the best way to settle the “fan vs fanless” question for your exact unit, and your current behavior still looks consistent with a very quiet (but typically actively cooled) Latitude configuration.

 

[Divine_Barakah]

There are fan/fanless variants of your D L 7450. You can check Dell site using your Laptop Service Tag. Then have an idea if you got fan there thru the parts section.

That’s good advice in general: the Service Tag is the most reliable way to confirm what Dell shipped in your exact unit (thermal module, fan assembly, heatsink, etc.), because “Latitude 7450” can have multiple configurations.

That said, with an Intel Core Ultra 7 155U in a Latitude 7450, a truly fanless (fully passive) design would be unusual. What’s common is an “effectively silent” setup where the fan stays at 0 RPM (or very low RPM) for light/moderate workloads and only ramps under sustained CPU load.

How to verify via Dell (most authoritative)

• Go to Dell Support, enter your Service Tag
• Check the “Parts” / “Original configuration” / “As-built” sections (wording varies)
• Look for a part named similar to “Fan”, “Fan assembly”, “Thermal module”, “Heatsink/fan”

How to verify from the OS/BIOS (practical checks)

• In BIOS/UEFI, see if there’s a “Fan” / “Thermal” / “Fan control” page or fan RPM readout (not all models expose it).
• In Windows, HWiNFO sometimes shows fan RPM (sometimes Dell systems don’t expose it, so “no reading” doesn’t prove there’s no fan).
• Run a short sustained CPU load (a benchmark/stress tool) while watching CPU package temperature. On an actively cooled system, you should see either fan RPM increase or temperatures stabilize without severe throttling.

Important note
Even if you confirm a fan is present, not hearing it during an ESET scan can still be normal—your earlier numbers (SSD 48°C peak, ~36% CPU) fit an I/O-heavy workload that may not trigger Dell’s fan threshold.

Conclusion: checking the Service Tag parts list is the best way to settle the “fan vs fanless” question for your exact unit, and your current behavior still looks consistent with a very quiet (but typically actively cooled) Latitude configuration.

I confirm that fan is present as I was able to test hardware in BIOS and saw the rpm there.

So it seems it is just silent by design and it is very cold in here these days (9 degrees Celsius)

 

[Bot]

I confirm that fan is present as I was able to test hardware in BIOS and saw the rpm there.

So it seems it is just silent by design and it is very cold in here these days (9 degrees Celsius)

Yes—if BIOS diagnostics show fan RPM, that confirms the fan is working and being detected properly.

Given your room temperature (~9°C) and the workload you described (ESET scan with ~36% CPU, SSD peaking at 48°C), “barely audible / often off” behavior is very plausible and generally by design:

Why it stays quiet in your case

• Cold ambient air lowers internal temperatures, so the system may never reach Dell’s fan-on threshold (or only briefly).
• AV full scans are frequently more storage/I/O-heavy than sustained CPU-heavy, so the CPU package may not demand much cooling even if the SSD warms up.
• Dell’s default thermal/acoustic profiles typically favor low noise and will allow modest temperature rise before ramping the fan.

What to keep an eye on (optional, but useful)

• CPU package temperature + “thermal throttling” indicators during a sustained CPU load (not during an AV scan).
• SSD temperature staying below ~60°C most of the time is generally a comfortable range for laptop use; brief spikes higher under heavy activity are common.

Conclusion: with confirmed fan RPM in BIOS and your cool room temperature, what you’re seeing sounds normal and consistent with a quiet-by-design Latitude thermal profile.

 

[Divine_Barakah]

Yes—if BIOS diagnostics show fan RPM, that confirms the fan is working and being detected properly.

Given your room temperature (~9°C) and the workload you described (ESET scan with ~36% CPU, SSD peaking at 48°C), “barely audible / often off” behavior is very plausible and generally by design:

Why it stays quiet in your case

• Cold ambient air lowers internal temperatures, so the system may never reach Dell’s fan-on threshold (or only briefly).
• AV full scans are frequently more storage/I/O-heavy than sustained CPU-heavy, so the CPU package may not demand much cooling even if the SSD warms up.
• Dell’s default thermal/acoustic profiles typically favor low noise and will allow modest temperature rise before ramping the fan.

What to keep an eye on (optional, but useful)

• CPU package temperature + “thermal throttling” indicators during a sustained CPU load (not during an AV scan).
• SSD temperature staying below ~60°C most of the time is generally a comfortable range for laptop use; brief spikes higher under heavy activity are common.

Conclusion: with confirmed fan RPM in BIOS and your cool room temperature, what you’re seeing sounds normal and consistent with a quiet-by-design Latitude thermal profile.

I believe I can monitor temp using Kerish Doctor

 

[Bot]

I believe I can monitor temp using Kerish Doctor

Kerish Doctor can show temperatures, but I wouldn’t rely on it as the only source for thermal monitoring. Some “PC doctor/optimizer” suites are fine for basic readouts, but they can also misreport sensors on certain laptops, and they add extra background components you don’t really need just to watch temps.

Safer / more reliable options for temperature monitoring

• HWiNFO (recommended): very detailed sensor readouts (CPU Package, per-core temps, SSD/NVMe sensors, and sometimes fan RPM). Use “Sensors-only” mode.
• Dell’s own utilities (if available on your model): can reflect Dell’s thermal modes and sometimes temps/fan behavior more consistently.

If you keep using Kerish Doctor

• Use it for a rough “trend” (idle vs load), not as the final authority on exact numbers.
• Cross-check at least once with HWiNFO, especially for CPU “Package” temp and NVMe “Composite” / controller temps, to confirm Kerish is reading the right sensors.

Conclusion: Kerish Doctor may be OK for a quick glance, but for accurate troubleshooting/verification, HWiNFO (and Dell’s own tools/BIOS readings) are the better reference points.

 

[stonjean633]

This proc have 2 Performance Cores + 8 Efficiency Cores + 2 Low Power Cores. Power saver I would say. Fans don't ran loud as it's only 15w.

 

[Bot]

This proc have 2 Performance Cores + 8 Efficiency Cores + 2 Low Power Cores. Power saver I would say. Fans don't ran loud as it's only 15w.

Your general conclusion is reasonable: Core Ultra 7 155U is a low-power “U-series” chip intended for efficiency, and in many everyday tasks the laptop will stay quiet.

A couple of clarifications to keep it accurate:

Core layout / what it means
The “2P + 8E + 2 LP-E” layout (2 Performance, 8 Efficiency, plus 2 Low-Power Efficiency cores) is correct for Ultra 7 155U, and it helps the system keep background/light work on the most efficient cores, which reduces heat and fan use.

About “only 15W”
15W is the base power class, but it doesn’t mean the CPU always runs at 15W. On many laptops it can boost above that for short periods (turbo), then settle back down depending on Dell’s power/thermal limits. Even so, because the chassis and cooling are designed for this class of CPU, it often remains very quiet unless you run sustained heavy CPU/GPU loads.

Why your fans may stay silent

• Light workloads get handled by E-cores / LP-E cores efficiently
• Short boosts don’t always heat the system enough to trigger an audible fan ramp
• Cool ambient temperature (your ~9°C room) significantly helps

Conclusion: yes—this platform is designed to be “quiet most of the time,” and your observations fit the expected behavior for a Core Ultra 7 155U Latitude with a working fan.

 

[Divine_Barakah]

This proc have 2 Performance Cores + 8 Efficiency Cores + 2 Low Power Cores. Power saver I would say. Fans don't ran loud as it's only 15w.

Perfect for my needs. In my old Latitude 5340 which had i5 gen 13 the fan noise was very noticeable during Eset full system scan or during Windows updates.

But that's not the case with my new Latitude. Perfect.

 

[Bot]

Perfect for my needs. In my old Latitude 5340 which had i5 gen 13 the fan noise was very noticeable during Eset full system scan or during Windows updates.

But that's not the case with my new Latitude. Perfect.

That lines up with what you’d expect.

Why the new Latitude can be noticeably quieter

• Core Ultra 7 155U’s core mix (including the low-power E-cores) helps keep “maintenance” work (updates, AV scanning overhead, background tasks) on more efficient cores, so heat builds more slowly.
• Dell may be using a different thermal module / fan curve on the 7450 vs the 5340 (business Latitudes can vary a lot by chassis size, heatsink design, and default “acoustic” tuning).
• Windows Updates and AV scans can hit CPU in short bursts; if the system can absorb those bursts without crossing the fan threshold, it stays silent.
• Your current ambient temperature (~9°C) further reduces how often the fan needs to ramp.

One practical takeaway
If later you ever notice fan noise increasing, it’s usually tied to:

• a different Dell thermal profile being selected,
• dust buildup over time,
• or a genuinely sustained load (long installs, indexing, big decompressions, etc.).

Conclusion: for “quiet during scans/updates,” your new setup behaving this way is a normal and very positive sign, not something suspicious.