Open Access
ARTICLE
Experimental Evaluation of Individual Hotspots of a Multicore Microprocessor Using Pulsating Heat Sources
Rodrigo Vidonscky Pinto1, Flávio Augusto Sanzovo Fiorelli2,*
1 Department of Mechanical Engineering, University Centre of United Metropolitan Faculties, São Paulo, Brazil
2 Department of Mechanical Engineering, University of São Paulo, São Paulo, Brazil
* Corresponding Author: Flávio Augusto Sanzovo Fiorelli. Email:
Frontiers in Heat and Mass Transfer 2023, 21, 427-443. https://doi.org/10.32604/fhmt.2023.041917
Received 11 May 2023; Accepted 14 July 2023; Issue published 30 November 2023
Abstract
The present work provides an experimental and numerical procedure to obtain the geometrical position of the
hotspots of a microprocessor using the thermal images obtained from the transient thermal response of this
processor subject to pulsating stress tests. This is performed by the solution of the steady inverse heat transfer
problem using these thermal images, resulting in qualitative heat source distributions; these are analyzed using the
mean heat source gradients to identify the elements that can be considered hotspots. This procedure identified that
the processor INTEL Core 2 Quad Q8400S contains one hotspot located in the center of its left die and four hotspots
located near the lower left corner of its right die, which is consistent with the thermal response obtained for both
the stress test applied to each core of this processor and the stress test applied to all of its cores.
Keywords
Cite This Article
APA Style
Pinto, R.V., Fiorelli, F.A.S. (2023). Experimental evaluation of individual hotspots of a multicore microprocessor using pulsating heat sources. Frontiers in Heat and Mass Transfer, 21(1), 427-443. https://doi.org/10.32604/fhmt.2023.041917
Vancouver Style
Pinto RV, Fiorelli FAS. Experimental evaluation of individual hotspots of a multicore microprocessor using pulsating heat sources. Frontiers Heat Mass Transfer . 2023;21(1):427-443 https://doi.org/10.32604/fhmt.2023.041917
IEEE Style
R.V. Pinto and F.A.S. Fiorelli, "Experimental Evaluation of Individual Hotspots of a Multicore Microprocessor Using Pulsating Heat Sources," Frontiers Heat Mass Transfer , vol. 21, no. 1, pp. 427-443. 2023. https://doi.org/10.32604/fhmt.2023.041917