Question Can I overclock my gtx 1660 super with a 450w PSU

Dec 22, 2019
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I'm going to be using msi afterburner

My specs are :
R5 2600
gigabyte ds3h b450
palit 1660 super (single fan card)
2x8gb team force 3000mhz ram
450w br bronze 80+ evga psu
seagate 1tb hd 7200rpm
kingston a400 240gb ssd
masterbox q300l

If possible shall I lower the power limit or what? or is there virtually no head room at all
 
You have very little headroom with that 450 Watts PSU. This is the minimum recommended for that card. Your system draw around 380 Watts. Even now it's running the PSU at load at more than 84%.
I'm pretty sure your numbers are wrong.
The GTX 1660 Super draws around 138W peak.
I'd guess and say that system uses around 220W under normal gaming load.

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