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Mark Ermolov on Twitter: "What a find! Direct access to CPU SVID (serial voltage id) bus via undocumented punit mailbox MSRs (0x607/0x608), voltage change step ~1mV, access to Cores/SA/GT VRs. It's much
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TPS51650 - Dual Channel (3-Phase CPU / 2-Phase GPU) SVID, D-CAP+ Step-Down Controller Chip ICs - WIT Computers
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TPS51640A 51640A Dual-Channel (3-Phase CPU/1-Phase GPU) SVID D-CAP+™ Step-Down Controller Chip ICs - WIT Computers
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TPS59650EVM-753, Evaluation Module for Intel IMVP-7 3-Phase CPU/2-Phase GPU SVID Power System - Datasheets.com
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Tps51640 Tps 51640 Dual-channel (3-phase Cpu/1-phase Gpu) Svid, D-cap+ Step-down Controller For Imvp-7 Vcore - Integrated Circuits - AliExpress
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1pcs Original Tps59650rslr Vqfn-48 Dual Channel (3-phase Cpu / 2-phase Gpu) Svid, D-cap +tm Step-down Controller Arduino Nano - Integrated Circuits - AliExpress
![PDF] VoltPillager: Hardware-based fault injection attacks against Intel SGX Enclaves using the SVID voltage scaling interface | Semantic Scholar PDF] VoltPillager: Hardware-based fault injection attacks against Intel SGX Enclaves using the SVID voltage scaling interface | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/19147fdf21e0200e6eebe89663afd7b772ee2813/6-Figure2-1.png)
PDF] VoltPillager: Hardware-based fault injection attacks against Intel SGX Enclaves using the SVID voltage scaling interface | Semantic Scholar
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