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Autor Purica/Tamara55
Ovako, imam dilemu dal da uzmem u ADM-u ovaj WD6400AAKS ili Samsunga od 500GB F1 HD50.
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Bjezi od Samsunga, jucer uzeo F1 640GB i izazvao mi skoro ludilo od vibracija i rezonance u kucistu sa ostalim diskovima koji su sta Seagate sta WD. Cijeli stol mi se tresao/brujao u intervalima, a culo se i u drugoj sobi. Mislim da se Samsung F1 "potukao" sa mojim 250GB "Speedy Gonzales-om"
Sutradan zamijenio za WD 500GB AAKS i nikakvih vibracija vise...damn...
BTW, WD mi se cini tisi od Samsunga F1 u seeku ili tu negdje...jedino je Samsung bio stupanj hladniji sta je zanemarivo. Ovi novi WD su ludilo. Pricam o 500GB AAKS Blue (nije bilo 640 za uzet
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Mozda je bio los primjerak, ali meni izgleda da Samsung koristi neku nestandardnu brzinu vrtnje i ako imas druge diskove u kucistu nastaje ovo:
"Slow 'pulsing' vibrations are often caused by the interaction between two vibration sources that have S-L-I-G-H-T-L-Y different vibration frequencies. The two vibration frequencies interact, and you get 'intermodulation' vibration products (called beats) at various sum and difference frequencies.
With HDDs, the problem occurs if (say) one is spinning at 7,500RPM (125 revolutions per second) and another is spinning at 7,530RPM (125.5 revolutions per second). If the two drives are 'coupled' in some way (installed in the same case without effective vibration damping), they will produce a vibration product (beat) at 250.5Hz (the sum of the two frequencies), pulsing at 0.5Hz (the difference between the two frequencies). If the two HDDs are closer in speed, then the vibration product (beat) will have a longer (slower) pulsing effect. It all depends on just what vibration frequencies are generated by the spinning drives. (I don't think a 7,500RPM drive will necessarily produce vibrations at 125Hz, but it's quite likely). "