overclockv.
/ˌəʊvəˈklɒk/, U.S. /ˌoʊvərˈklɑk/ Computing.
transitive. To increase the working speed of (a computer, esp. its central processing unit or a component of this) beyond that of the original specification.
ΚΠ
1989 Audio Digitizer Woes in comp.sys.amiga.tech (Usenet Newsgroup) 5 May The ADC is not being overclocked (ie, clock freq. is to [sic] high), and there are no problems with the other 7 bits.
1989 PC User (Nexis) 12 Apr. 50 I also cannot predict the effect of over-clocking the CPU.
1995 Austin (Texas) Amer.-Statesman (Nexis) 22 July e3 The problem is the minute you overclock a chip, your computer and chip warranty become invalid.
2002 Jakarta Post (Electronic ed.) 1 July Intel has just released its Pentium 4 Mobile 2 GHz processor, making the ability to overclock a Pentium 4 1.7 GHz to 2 GHz rather superfluous.
Derivatives
ˌoverˈclocked adj.
ΚΠ
1991 PC User (Nexis) 24 Apr. 93/3 Personally, I wouldn't use one in an overclocked machine unless I could get a specific warranty against processor failure.
1998 Risks Digest (ACM Forum) (Electronic text) 7 May The processor speed and serial number turned out to be forged and what I had purchased instead was most likely an overclocked P266 or P233 processor in a motherboard jumpered to run it at 300 MHz.
This is a new entry (OED Third Edition, December 2004; most recently modified version published online March 2022).
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v.1989