I finally found the cause of the problem that made my gaming fps drop every 2-3 sec. This is Dell inspiron 3593 with intel core i5.
You much watch and listen closely to know what causing it and how i fixed it. Even if you skip a sec you could miss the important thing that matter the final FPS.
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All the issues that this model has and found out that removing the plastic vent WILLNOT improve anything. Changing thermal paste will do nothing more that lowering 1-2C. There are 2 prominent issues with this model. One being the thermal throttling itself and other is voltage throttling. As you know, the maximum power consumption this laptop can take is merely 45W, from which CPU and gpu itself should takes ~35W on full load. But as other components still need to draw power, you cannot push the cpu and gpu at it's max without under volting. The mx230 can never hit it's peak frequency and the maximum thermal limit of mx230 is ~74C. To maintain this temperature gpu throttles down hugely in frequency too (in defaults). I barely doubt the low-power fan can even keep up with these loads.
The main issue is that, with this configs for cooling, this model shouldn't be meant to have external gpu or quad core cpu (because of voltage throttling), or should at least have a power draw of 60W (like other models do).
then why didn't the older inspiron models with same 45W and egpu throttle?
The problem with this specific model is neither the blocked vent or thermal paste. It's the heatsink/heat pipes itself. You can find it in dell forums too. Older models didn't have such poor heat pipes although the temps reached early 90s on full load. For this model, only after changing the whole heatsink/ heat pipe/ copper pipe, the temps came way down to 83-85 on full load without any undervolting and 45-50 on idle. The heat pipes doesn't seem to dissipate heat properly (at least this is the only working solution that a guy on reddit found)
The vents are closed to create pressure inside so that the single low powered fan can dissipate the heat outside easily. Such cooling methods are meant only for dual core cpus, not quad cores.
Bottom line: No wonder it's a cheap model for given specs as everything they used inside seems to be crap. It's not just 3000, all 5000 series too have this issue. There's no permanent fixing without changing the whole cooling system, which by some reasons seem to be bad mostly in inspiron series only. The dell vostro 3000 series with almost the same specs, design and everything except the inspiron branding has temps more than 8-10C below inspiron with less thermal and voltage throttling for egpu too.
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NOTE: The Fps you see here while gaming is not as similar to that gaming session. I actually played that game at that FPS. Don't reference the FPS according to the video.
Happy gaming guys. I did a lot of research to fix this so A sub would be amazing and i will keep posting similar fixes and its update.😁😁😁😁👍👍
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