Member Avatar for gracylibob

The bottom of my laptop gets way too warm when on. It's too hot to set in my lap for any real length of time. Any ideas?? Thanks!

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Agree with — dust and restricted airflow are the most common causes when the bottom of an older laptop like the Acer Aspire 5670 runs uncomfortably hot. Other common contributors are a failing fan, degraded thermal compound between CPU/GPU and the heatsink, sustained high CPU use from rogue processes, or simply placing the laptop on a soft surface that blocks vents (as hinted).

Start with simple, safe checks that do not require warranty‑voiding disassembly. Power down, remove the battery if possible, and inspect the intake/exhaust grilles for lint. Cleaning that dust out can make a big difference. If the fan still sounds noisy, stalls, or runs intermittently on boot, the fan bearings or motor are likely failing and the fan assembly will need replacement. If willing to open the bottom cover, the next tier is to clean the fan/heatsink assembly directly and, if comfortable and experienced, remove old thermal paste and apply a fresh thin layer of quality thermal compound (use 90%+ isopropyl alcohol for cleanup).

Gather diagnostic data before deciding on parts or service. Boot and check CPU/GPU temperatures and clock load with a hardware monitor (examples: HWMonitor, Core Temp, SpeedFan) and check Task Manager for processes keeping the CPU pegged. Persistent high idle temps, repeated thermal throttling, or fan failure after cleaning point toward hardware repair (fan replacement or re‑timing the heatsink with new compound).

If cleaning and software fixes don’t fix it, options are a service repair (fan or heatsink work), BIOS/chipset updates from Acer, or practical mitigations such as a cooling pad or using a hard lap desk. Opening the machine can void warranty; consider a qualified technician if unsure.

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Member Avatar for mb523

It is possible that the CPU heatsink and fan is clogged up with dust and therefore not cooling it properly. A can of compressed air can easily clean your heatsink and fan. Direct the air jet into the vents (blowing opposite the normal air flow will remove a lot of dust). Use short bursts and keep the can upright. Do this only when the machine is off. Repeat this until no more dust is blown out, then turn the machine back on. This should restore most of the functionality of the cooling system! Hope this helps.

Member Avatar for jbennet

laptops are supplosed to get (fairly warm), but blowing out the dust will help a lot. contrary to thier name, you are not actually meant to put them onto your lap (lower your spem count)

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