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Chn RAM my tnh

Khi tm mua b nh cho my tnh, c mt syu t bn s phi cn nhc v quyt nh chn ng RAM. Tuy nhin c 2 vn thng c xem l quan trng nht, lgi c v cht lng RAM.

Nguyn tc chn RAM

Trc khi chn RAM, bn cn phi chn cho cmainboard v CPU cn dng. T , cn c vo kh nngh tr RAM ca mainboard m bn chn loi RAM phhp vi mainboard c v chng loi v tc bus. Nukhng quan tm n vic chn sao cho gim chi ph, bnchn loi RAM c bus ti a ghi trn bo gi ca

mainboard l c.Ngc li, bn hy hi nhn vin t vn bn linh kin mytnh xem vi mainboard v CPU chn th chng s chy tc bus no, t chn loi RAM c bus bng hocln hn tc bus m nhn vin t vn cho bit; hoc ngin hn l bn ch cn hi vi mainboard v CPU chn th dng loi RAM c bus bao nhiu l ph hpnht?. Cn nu mun t tnh v mua RAM c bus ph hpvi CPU v mainboard chn, mt cch gn ng, bn cth tnh bus RAM m h thng s hot ng theo cngthc:

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Ly bus CPU chia 4, tt c em nhn vi 2 (hay ni cchkhc, ly bus CPU chia 2).

V d: bn chn loi CPU c bus 800 MHz tng thch vimainboard, bus RAM ca h thng s l: (800/4)*2 =200*2 = 400 MHz.

Khi , bn chn loi RAM (DR1, DR2, DR3) tng thchvi mainboard v ng thi c tc bus phi t 400MHz. Nu loi RAM bus 400 MHz khng cn hng, bn cth chn loi RAM c bus cao hn nhng khng c vt

qu gi tr bus RAM ti a m mainboard quy nh.Sau khi xc nh c bus RAM, tip n bn chn loinhn hiu nh mua. Nu hu bao khng cho php, bn cth chn loi RAM r tin vi nhng thng hiu l, ttnhin l tnh n nh ca n s khng cao, i khi cn phthuc vo s may ri ca l hng v nhn hiu c chn.

Mun n nh hn, bn chn loi RAM trung bnh nhnhiu Kingmax, Corsair ValueSelect, Kingston..., b li bns tn thm t vi chc ngn n vi trm ngn. Mt khimun tnh n nh ca h thng cao hn na, bn hy chnloi RAM cao cp, nh ni trn, gi ca n cao nmc khng th cao hn!

Ngoi cc yu t trn, cn mt s yu t na m t ngi

dng quan tm, l: s lng chip nh trn mi thanhRAM, RAM mt mt hay hai mt, chp hn hay chp dn.Thng th nhng yu t ny gn lin vi gi tin cathanh RAM, do vy nu bn chn loi RAM cht lng ttrung bnh tr ln th mc nhin c sn. Cn nu hai loi

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bng gi, bn hy chn loi c nhiu chip nh, loi 2 mtchip nh thay v mt mt, loi dng chip dn thay v chiphn.

Thc t cho thy, loi RAM c nhiu chip nh c tnhtng thch cao hn loi RAM c t chip nh, tc l dngc cho nhiu loi mainboard. Gn y, mt s loimainboard i mi dng chipset Intel 946 hoc G31 hayng nh vi RAM mt mt v hai mt, do vy bn nnlu khi chn hai loi mainboard ny. Hin nay, ngy cngc nhiu loi RAM dng chip dn, bi c im ca loi

ny l t nng (ta nhit t), nng lng tiu th thp, tc truyn d liu nhanh nh kch thc chip nh nh, lpc nhiu chip nh trn din tch nh...

RAM cao cp v kh nng p ng

Loi RAM cao cp c gi rt cao v tnh n nh ca ncng cao hn so vi nhng loi r tin hn. Ngoi tnh n

nh, loi RAM ny c bit ph hp cho my tnh phc vcng vic ha, x l phim, chi game v nhng ngithch p xung (over clock) mt s linh kin trong my tnh my chy tc cao hn tc thc ca linh kin,kh nng p xung ca loi RAM ny ti thiu phi l 10%.Chnh v vy, loi ny thng c thm phn tn nhit bngnhm.

Hin nay, trn th trng c rt t nhn hiu RAM cao cp,c th m trn u ngn tay, nh: Corsair, Muskin v tnbinh Super Talent. in hnh, loi RAM DDR2 dunglng 1 GB (bus 800 MHz), Corsair c bn vi gi gn2,2 triu ng, Super Talent l 729.000 ng (bng vi

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Kingmax); ring loi RAM nhn hiu Muskin khng cbn rng ri, ch c bn Cng ty Vin Sn.

Trong s ny, c bit nht vn l RAM nhn hiu Corsair

chng loi twin (cp i), khng ch c bit v gi mcn c bit c cch lp, phi lp sao cho c i th midng c! Ngha l mt khi chn RAM nhn hiuCorsair chng loi twin, bn phi mua 2, hoc 4, hoc 6...thanh RAM ging nhau v dung lng v bus lp vomy tnh, lc my tnh mi hot ng. Chnh v vy mloi RAM ny rt ph hp vi mainboard h tr RAM knh

i (dual channel).Cho d, bn chn loi RAM cao cp n c no i chngna th kh nng li vn c th xy ra vi tn s thp. Dovy, my tnh dng RAM cao cp ca bn vn c th smnng chiu ma v li RAM, y l chuyn bnh thngca tt c cc mt hng in t, bi n cn ph thuc voyu t may ri khi mua!