fx-9860gii-2 brief introduction
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12-09-2019, 02:26 AM
(This post was last modified: 12-09-2019 11:36 AM by Mjim.)
Post: #42
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RE: fx-9860gii-2 brief introduction
(12-08-2019 08:40 PM)xerxes Wrote: Interesting results. I'm using Eneloops in my FX-9860G SD without any complications even at 118 MHz. I'm using 3rd generation Sanyo eneloops myself; I guard them like a dragon guard's their treasure horde. (12-08-2019 08:40 PM)xerxes Wrote: Apropos optimized: Trying to find the optimual solution for each language, I've noticed that the 8-bit CASIOs are faster with Sure; the OS version is v03.30.0202: fx-CG50 default clock (Ptune3 "NORMAL"): Xerxes code / C.Basic CG v1.40beta: 0.417 seconds / DBL Mode 0.273 seconds / INT Mode Original code / C.Basic CG v1.40beta: 0.52 seconds / DBL Mode 0.31 seconds / INT Mode fx-CG50 188.75MHz clock (Ptune3 "F5"): Xerxes code / C.Basic CG v1.40beta: 0.239 seconds / DBL Mode 0.159 seconds / INT Mode Original code / C.Basic CG v1.40beta: 0.30 seconds / DBL Mode 0.19 seconds / INT Mode (12-09-2019 01:08 AM)Steve Simpkin Wrote: Mjim, The included AAA batteries probably have about 1000mAh capacity at normal drain rates so at maximum load it's around 25 hours of non-stop number crunching, or 222 hours of just idle screen time (at brightness level 2). I've settled on brightness level 2 as a default as that seems to be a good standby current drain/readability balance for me. At 4.5mA idle; 750mAh eneloops should be good for about 167 hours of screen time; I normally leave screen off time at 60 minutes (less flash writes as well). 35uA when off is nearly 2.5 years on the eneloops. I guess this is the first colour screen device I've owned that has over a hundred hours of screen time on battery....or it would be if I wasn't so keen on overclocking everything all the time EDIT: I did some measurements for the fx-9750G2 which is probably a bit more useful to the OP as it is more similar in hardware. Power consumption figures weren't all that much different, but I attached an Excel document in 97-2003 format...which I think is compatible with open office. There are likely mistakes however, so I'll look at it again tomorrow. Ftune3 'Normal' and Ftune3 'F5' settings were recorded over a 5 minute period; my multi-meter would record the minimum & maximum peak as well as average over that time period. Ftune3 'F2', 'F3', 'F4' were only sampled for a minute. Scrolling current consumption was just recording the maximum by scrolling up and down the calculation history screen several times until I felt that the peak recording wasn't changing all that much, so is likely inaccurate. The Summation benchmark is the 100k version of this: https://www.hpmuseum.org/forum/thread-97...l#pid86751 In mode 1 the idle current at stock clocks on the fx-9750G2 averages 0.73mA (0.31 -> 12.20mA). Looks like 1000 hours of screen time isn't out of the question... |
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