Emanuel Berg writes:
Linux-Fan wrote: >>> CPU power doubled to account for short-time bursts. >> >> Double it, that something one should do? > > In Intel world, yes :) In AMD world it seems to be slightly > better, cf.: > https://images.anandtech.com/graphs/graph16220/119126.png > > The TDP is given in the labels whereas the actual max power > consumption observed is in the diagram. It seems that for > AMD systems, the most extreme factor observed there is > 143.22/105 = 1.364 [...] OK, included ... > SSD highly depends on the model. No need to argue for one > general figure over the other. I think my SSD is specified > 14W, but it is large and not the "newest" :) OK, it says the SSD and RAM are Corsair Vengeance LPX · DDR4 · 2*8GB=16GB · 3600Mhz 250GB Kingston KC 2000 (SSD/NVMe/M.2) if one can find exact digits, that's optimal, but what do you search for to find out? I mean in general? The model name and ... ?
... datasheet ... power consumptionThis does not yield anything ineteresting for the RAM here, but for the SSD we get a useful datasheet this way:
[v] https://www.kingston.com/datasheets/SKC2000_us.pdfWhich indicates on page 2 that the max. power consumption is 7W under heavy write loads.
I get most of my estimates derived from the figures of a PC magazine I regularly read :)
Anyway, the computation now lands at 307 W.
device model/category max W note
-------------------------------------------------------------------------
CPU AMD Ryzen 3, 4 cores 89 exact plus extra [i]
fans 80 mm (3K RPM) 9 3*3W = 9W [ii]
120 mm (2K RPM) 12 2*6W = 12W [ii]
GPU geforce-gt-710 19 exact [iii]
mb Asus ROG Strix B450-F Gaming AM4 101 exact excl CPU [iv]
RAM DDR3 (1.5V) 3 actually a DDR4 [ii]
SSD 2.8 [ii]
-------------------------------------------------------------------------
3W is for one module per [ii] but further above you write 2x8GB so why not at least compute it at 6W? Also, SSD could go up to 7W per datasheet [v]. For actual PSU sizes this will end up at 350W min. which is OK I guess.
total, with +30% wiggle room:
(ceiling (* 1.3 (+ (* (/ 143.22 105) 65)
(* 3 3) (* 2 6)
19
(- 166.2 65)
3
2.8) )) ; 307 W
[i] https://www.amd.com/en/products/apu/amd-ryzen-3-3200g
https://images.anandtech.com/graphs/graph16220/119126.png
[ii] https://www.buildcomputers.net/power-consumption-of-pc-components.html
[iii] https://www.techpowerup.com/gpu-specs/geforce-gt-710.c1990
[iv] https://www.techporn.ph/review-asus-rog-strix-b450-f-gaming-am4-
motherboard/
https://www.techporn.ph/wp-content/uploads/ASUS-ROG-Strix-B450-F-
Gaming-Benchmark-1.jpg
[...] HTH and YMMV Linux-Fan öö
Attachment:
pgp7YyvjLkk_L.pgp
Description: PGP signature