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Pentium III 650 overclocking
13.09.2000.
    « Prev  : Stranica 1 od 4 :  Next »      By ::  Ozren Žagmešter 
- Uvod -

Kada smo slagali naš primarni stroj za testiranje hardware-a, ideja je bila da ćemo korisiti dva procesora: Celeron 433 te Pentium III 450. Pentium III 450 je trebao, osim samog sebe, "glumiti" i Pentium III 600B (4,5x133MHz). Nažalost, kao što možete i pročitati u našem Pentium III 450 overclocking članku, kondenzacija uzrokovana ekstremnim hlađenjem putem Peltier-a uništila je procesor. Taj gubitak nas je ostavio u neobranom grožđu jer nismo više imali ni jedan brži procesor za potrebe testiranja, a bome ni novaca da kupimo nasljednika. Nakon što nas je prošla prvobitna panika i kukanje, bacili smo se na mozganje o tome koji bi nam procesor bio najprikladniji. U izboru su bila tri Coppermine procesora - 550, 600 i 650. Ono što smo tražili kod procesora je to da može glumiti dva procesora (dakle morao je raditi na FSB-u od 100 i 133MHz) i da postoje službeni modeli na tim frekvencijama. Coppermine 500 je odmah otpao jer su njegove dvije brzine preblizu (500 i 666MHz). Na kraju smo se odlučili za 650 jer smo bili privučeni mogućom brzinom od 866MHz. Bili smo svjesni da postoji rizik da nećemo uspjeti overclok-ati procesor na željenu brzinu (što bi bila katastrofa), ali nismo uspijeli odoljeti. Kakva bi mi to bili overclocking stranica da nismo probali?

Odlučili smo nabaviti Slot 1 varijantu procesora jer smo imali Alpha P3125 hladnjak viška (skinut opet sa nesretnog P3-450). No, problem novaca je i dalje ostao. Na kraju smo imali malo sreće jer smo naručili procesor preko jednog našeg prijatelja iz SAD-a. Dečko je dolazio nama u posjet preko ljeta i na taj način smo procesor uspjeli dobiti po američkim cijenama i ne platiti nikakvu poštarinu. Dodatni bonus je bio taj da smo onda mogli dati našem prijatelju novac kad dođe u Hrvatsku, a ne odmah.

Reciklirana Alpha P3125

Postoji više proizvodnih varijanti (stepping-a) Pentium III Coppermine procesora. U datom trenutku najnoviji, a po informacijama koje smo imali najbolji za overclocking, bio je cB0 stepping. Danas već postoji i cC0 stepping koji bi trebao biti još bolji, no to nije potvrđeno jer ih nema još u prodaji, a glavni iz te serije - Pentium III 1.13GHz povučen je s tržišta radi defekta.

Kada je procesor stigao (skupa s našim prijateljem) bacili smo se na posao. Prvo smo morali maknuti Peltier s Alphe. Probavali smo sve živo, no dotični termo-električki modul se nije micao ni milimetra. Kad smo već počeli razmišljati o djetlu i čekiću Peltier je sam otpao s Alphe. Pretpostavljamo da se Peltier prepao našeg arsenala pa je popustio. Nakon toga smo morali cijelu Alphu dobro očistiti od ostataka ljepila, termalne paste i prljavštine. Kada je čišćenje bilo gotovo stavili smo srebrne termalne paste i sastavili Alphu sa Coppermineom.

Coppermine 650 prilikom testiranja 1

Coppermine 650 prilikom testiranja 2



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