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A620 w 7900 Need 5200 DRAM Profile Setting

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FiatDemise View Drop Down
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Joined: 29 Feb 2024
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Post Options Post Options   Thanks (1) Thanks(1)   Quote FiatDemise Quote  Post ReplyReply Direct Link To This Post Posted: 08 Mar 2024 at 1:54pm
Solved my DDR5 4800 vs 6000 ram mystery. With low profile cooler, my system was getting to tjmax limit (85C) quickly and power was throttled to not go any higher. At 6000 mt, ram requires 1.35V instead of 1.1V, which I think translated to extra heat, and made it throttle sooner. I replaced the cooler with stock Wraith Prism, nice bump in hashrate, and then switching to 6000 mt showed real benefit. These measurements were taken 10 minutes after mining started.

Low Profile cooler 4800 AGESA, room temp 69F
Tccd1      85C:     12,085 hashrate / 90 watts = 134.3

Wraith Prism 4800 AGESA, room temp 72F
Tccd1      64C:     14,802 hashrate / 125 watts = 118.4

Wraith Prism 6000 Aggressive, room temp 72F
Tccd1      64C:     15,660 hashrate / 131 watts = 119.5
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Xaltar View Drop Down
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Joined: 16 May 2015
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 08 Mar 2024 at 4:49pm
Thanks for sharing your issue and solution. Temps can cause all kinds of headaches.
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