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Athlon 700 overclocking
21.08.2000.
    « Prev  : Stranica 2 od 3 :  Next »      By ::  Ozren Žagmešter 
- Overclocking -

Počeli smo konzervativno sa 800, pa prešli na 850MHz. Pri 850MHz smo morali promijeniti cache djeljitelj sa 1/2 na 2/5 putem BIOS-a na matičnoj te podići napon na 1.75V. Moramo napomenuti da smo od početka digli VIO napon na 3.6V da bi Golden Fingers radio kako treba. Pri normalnom naponu od 3.3V mašina bi se rušila ako je Golden Fingers bio montiran na procesor.

Procesor u akciji 1

Procesor u akciji 2

Neke verzije BIOS-a za KA7-100 nemaju mogućnost promjene djeljitelja cache memorije. One koje koje imaju su: tzv. BIOS 42, pa onda Beta 1,2 i 3 RY BIOS-a. Neki dan je izašao novi non-beta BIOS imena TY koji još nismo stigli pogledati, ali nešto nam govori da službeni BIOS-i još nemaju opciju za promjenu djeljitelja (prethodni RK i RX nisu imali). Na kraju smo se zaustavili na 900MHz-a pri naponu od 1.80V i cache djeljitelju od 2/5. Više nismo htjeli ići jer je ipak ljeto s temperaturama od 40+ C. Soba u kojoj se nalazi Athlon test mašina je tako okrenuta da u nju udara sunce cijeli dan, i još k tome je na najvišem katu zgrade. Kada se vrijeme malo smiri, probat ćemo još dodatno nabrijati procesor, pa makar morali dodati i Peltier na heatsink. Ono što je super je to da cache radi bez problema iako je djeljielj 2/5 umjesto 1/3 koliko je na standardnim 900+ Athlonima. Planiramo također zamijeniti YSTech 60mm (27.2 cfm) ventilatore sa još jačim Delta 60mm (38 cfm) ventilatorima. Delta ventilatori su jako bučni, no nije da nas to smeta jer ovako i onako imamo užasno bučno kučište (8 80mm ventilatora + ventilatori na grafičkoj, procesoru, napajanju te 2 na hladnjaku za SCSI disk).

Što se pak tiče KA7-100 moramo priznati da nas je ploča oduševila. Kao prvo, ima mogućnost promjene cache djeljitelja što znači da lemljenje nije potrebno. Kao drugo, može se stvarno super tweak-ati radi brojnih opcija, a kao treće Athlon se može čak pošteno overclock-ati promjenom FSB-a što inače nije slučaj (ostale ploče idu obično do maksimalno 110MHz). Uspjeli smo dobiti da sve radi kako spada pri FSB-u od 124MHz (7x124= 868MHZ) što je za Athlon ploču izvan bilo kakvih očekivanja. Na kraju smo se ipak odlučili za 9x100 jer KX133 čipset na kojoj je baziran KA7-100 omogućava rad memorije na +33MHz od brzine sabirnice što je onda ipak bilo brže.

WCPUID



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