GIGABYTE AMD Radeon RX 580 8GB

Seller Note “this item does not switch on.”

Summary

  • Resistances
    • VCore – 0.9 (OK)
    • Vmem – This appears pretty low at 9, possibly short. As, Samsung K4G80325FC-HC25 isn’t normally that low.
    • VDCI – 27.8 (OK)
    • Display rail – 24.4 (OK)
    • 5V – 5K+ (OK)
    • 1.8v – 3.4K (OK)
    • 12v – 6K+ (OK)
    • 3.3v – 2.5K (OK)
  • Voltages
    • VCore & Vmem are missing, all others seem present (definitely 5v, 1.8v, but cannot identify some others yet showing as 0.91 and 0.96 could be display rail?)

Thoughts

  • Perhaps the low Vmem resistance and missing voltage are linked?
  • I should investigate the Vmem controller.