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| 04:17.22 | DocScrutinizer05 | ((stop working after 4 years)) yes, when you overclock them |
| 04:18.33 | DocScrutinizer05 | the chips have 100,000h at OP1 to 4, and only some15,000h at OP5. Going to OP5++ will *drastically* reduce chip lifetime |
| 04:18.44 | DocScrutinizer05 | ~omap-oc |
| 04:18.44 | infobot | i heard omap-oc is http://mg.pov.lt/maemo-irclog/%23maemo.2010-08-01.log.html#t2010-08-01T22:16:05 read that!, or and this http://mg.pov.lt/maemo-irclog/%23maemo.2011-03-11.log.html#t2011-03-11T03:04:11 |
| 04:25.25 | DocScrutinizer05 | also design flaws in thermal management can cause the chip to constantly operate beyond max temeprature rating, which also reduces lifespan extremely |
| 04:26.27 | DocScrutinizer05 | and we're talking about 10^x here for factor of lifespan shortening |
| 04:27.20 | DocScrutinizer05 | with x something maybe like (°C above linit) / 10 |
| 04:30.11 | DocScrutinizer05 | ~wiki electromigration |
| 04:36.01 | DocScrutinizer05 | feel free to work through the formulas in there, and correct my above guesstimation of 10^x |
| 04:39.24 | DocScrutinizer05 | anyway when lifespan drops for 500MHz->600MHz by factor 5 from 100k to 22k hours. then it drops for 600->700 *at least* to 22kh/5 = 4.4kh, and for 700->800 to 4.4kh/5 = <1000 hours |
| 04:40.02 | DocScrutinizer05 | and I expect the factor to increase rather than stay constant, like /5 /7 /10 ... |
| 04:44.15 | DocScrutinizer05 | and yes, OMAP4 is flawed. At least that's what I heard when working for a customer who supported customers using those critters |
| 04:45.02 | DocScrutinizer05 | there seem to be SiErr that are "WONT FIX in OMAP4. Fixed in OMAP5" |
| 04:45.54 | DocScrutinizer05 | not related to lifespan though, but who knows what else is in there that I never heard about |
| 04:47.55 | DocScrutinizer05 | (SiErr in tickets opened while testing on TI Blaze) |
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| 07:33.37 | eintopf | oh thanks |
| 07:34.08 | eintopf | i had this night the biggest stomach pains forever. that wasnt funny |
| 07:40.02 | eintopf | so i think neo900 is prepared for long time lifing |
| 07:44.56 | wpwrak | nice quote from xkcd: "the self-driving car project we launched by accident [...]" |
| 07:50.34 | eintopf | hi wpwrak |
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