By preliminary analysis of the Suzaku-HXD observations of the Abell 3376 cluster, we did not detect significant excess hard X-rays from this cluster. Considering the systematics included in the current analysis, we quote a tentative ~ 90% upper limit of 1 x 10"11 erg s"1 cm"2 in the 20-80 keV band. Our upper limit is consistent with the SAX-PDS analysis , but with smaller best-fit flux. Future (i.e. on-going) analysis includes the better background modeling and screening, and the search for non-thermal emission from the XIS data obtained within the west relic region.
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