DDR2: Memory Laptop kwamfuta. Review, dalla-dalla, price, siffofin

na'urorin haɗi kasuwar ne kullum updated tare da sabon aukuwa da kuma sababbin abubuwa tare da m tsari, haddasa yawa masu amfani wanda kudi a fili ba da damar dace saya sabon hardware, akwai shakku game da damar da wasan kwaikwayon na kwamfutarka a general. A duk lokacin da, da tattaunawa uymy tambayoyi a kan fasaha forums game da dacewar da aka gyara ba ya kwanta, har abada. A lokaci guda tambayoyi damuwa ba kawai CPU, VGA katin, kuma ko da ƙwaƙwalwar ajiyar. Duk da haka, har ma a duk kuwa da kuzarin kawo cikas ga cigaban da kwamfuta hardware, baya ƙarni na fasahar munasaba ba a rasa kamar yadda sauri. A musamman wannan yana zartuwa ga memory aka gyara.

DDR2-memory, daga farko kwanaki a kasuwa da samun koma baya a shahararsa

DDR2 - wannan shi ne na biyu ƙarni na tsauri memory tare da bazuwar damar (daga English synchronous Dynamic bazuwar damar žwažwalwar -. SDRAM ), ko, a cikin saba halitta ga duk wani mai amfani, na gaba tsara bayan da DDR1 memory, yadu a yi amfani da sashi na sirri kwakwalwa.

Da ake ci gaba da baya a 2003, cikakken qafafunku a kan kasuwar wani sabon nau'in iya kawai a karshen 2004 - kawai a lokacin bayyana chipsets da DDR2 goyon baya. Rayayye talla da kasuwar, na biyu ƙarni aka gabatar a matsayin kusan sau biyu a matsayin mai iko madadin.

Me tsaye a cikin ta farko haskaka daga cikin bambance-bambance ne da ikon ta yi aiki a wani yafi hakan mita, da canja wurin bayanai sau biyu da Agogon sake zagayowar. A daya hannun, da misali korau lokacin ne ya ƙara mita Kiwon lokaci da bata lokaci ba a lokacin aiki.

A karshe, ta hanyar da tsakiyar 2000s wani sabon nau'in fundamentally infringed da matsayi na baya daya, na farko, da kuma kawai a 2010 ya mai ma'ana hanya DDR2 tura ajiye zo domin maye gurbin da sabon abu DDR3.

na'urar siffofin

Rarraba DDR2 RAM kayayyaki (a yau da kullum jawabin ya dauki sunan "chaser") da wasu rarrabe fasali da kuma iri. Kuma kõ dã yawan na sabon bambancin ga lokaci irin memory frankly bai buga, amma ko da waje bambance-bambance nan da nan kama da ido na wani abokin ciniki a duba:

• Single-gefe / biyu mai gefe lath SDRAM module a cikin abin da kwakwalwan kwamfuta aka shirya a daya ko biyu tarnaƙi, bi da bi.
• DIMM - misali a yau nau'i factor for SDRAM (synchronous tsauri bazuwar damar žwažwalwar ajiya, da kuma shi ne mai hanya DDR2). The m amfani da kwakwalwa domin general amfani fara daga ƙarshen 90s, wanda yawanci gudummawar da zargin da processor Pentium II.
• SO-DIMM - taqaitaccen nau'i factor SDRAM module, ɓullo musamman domin šaukuwa kwakwalwa. Mutu SO-DIMM DDR2 kwamfyutar mallaka da dama gagarumin bambance-bambance daga cikin misali DIMM. Wannan module da karami jiki girma, rage ikon amfani da, saboda haka, kasa fiye da misali DIMM-factor yi matakan. Misali DDR2 RAM kayayyaki ga rubutu za ka iya gani a cikin hoto a kasa.

Bugu da kari ga dukan sama fasali, ya kamata a lura kuma kyawawan mediocre "fata" faranti daga waɗanda sau - kusan dukkan su tare da 'yan ƙalilan da aka gabatar tare da wani misali fee ga kwakwalwan kwamfuta. Marketing kwamfuta hardware kashi, sa'an nan kawai kawai fara unwind, don haka da sayarwa ne kawai ba su saba da samfurori riga ga zamani radiators RAM kayayyaki na daban-daban masu girma dabam da kuma zane. Har yanzu, sun yi da farko ado aiki, maimakon aiki na cire yi zafi (wato, bisa manufa, ba halayyar DDR RAM memory).

A hoto posted a kasa, za ka iya ganin look na RAM DDR2-667 kayayyaki da lagireto.

karfinsu key

DDR2-memory ne a zane ne musamman muhimmanci bambanci daga baya DDR - da rashin baya karfinsu. Na biyu ƙarni na samfurori madauri Ramin a cikin contact zone da soket ga RAM a kan motherboard an riga an located daban, saboda abin da wani ya mutu Saka DDR2 connector tsara don DDR, jiki ba zai yiwu ba tare da keta daya daga cikin aka gyara.

siga girma

Domin samar da motherboards (ko dai don home / ofishin amfani motherboard) DDR2-misali iya bayar da wani matsakaicin damar 16 gigabytes. Server mafita ga girma da iyaka kai har zuwa 32 gigabytes.

Ya kamata kuma kula da daya fiye da fasaha, daki-daki: da ƙaramar yawan daya ya mutu ne 1 GB. Bugu da kari, cikin kasuwar offers biyu bambance-bambancen karatu na DDR2 kayayyaki: 2GB da 8GB. Kamar haka ya sami mafi girma zai yiwu samar da RAM misali, mai amfani dole ne ka shigar da biyu madauri a kan ko dai hudu 8 GB 4 GB bi da bi.

watsa mita

Wannan siga ne ke da alhakin memory bas transmissibility gwargwadon bayanai da naúrar lokaci. Greater mita - more data iya sa to, sa'an nan DDR2-memory ne muhimmanci gaba na baya tsara, wanda zai iya aiki a wani fanni na 200 zuwa 533 MHz iyakar. Bayan duk, da ƙaramar mita na DDR2 trims - wannan 533 MHz, da kuma high-karshen abubuwa, bi da bi, za a iya fariya overclocking har zuwa 1200 MHz.

Duk da haka, da memory mita ƙaruwa halitta tãyar da Lokutan cewa ba a kalla a dogara a kan wasan kwaikwayon na memory.

game da Lokutan

Lokaci - yake da tazarar lokaci daga lokacin data request kafin karanta su daga ƙwaƙwalwar ajiyar. Kuma da karin ƙãra naúrar mita, da ya fi tsayi a lokacin bukata RAM ga ayyukan (ba zuwa babban jinkiri, ba shakka).

Siga auna a nanoseconds. Mai shafar yi ne lokaci rashin laka (CAS rashin laka), wanda a cikin bayani dalla-dalla ake magana a kai a matsayin CL * (inda * iya zama wani ba yawan da yake kasa da - da m zai yi aiki memory bas). A wasu lokuta, da Lokutan sanduna nuna trohsimvolnoy hade (misali 5-5-5), amma mafi muhimmanci siga ne kawai guda na farko yawan - su ko da yaushe ta kaddamarda memory rashin laka. Idan Lokutan nuna a cikin hušu zuwa takwas hade a cikin abin da na karshe darajar ne strikingly fiye da wani (msl, 5-5-5-15), shi ya ƙunshi jimlar tsawon na aiki zagayowar a nanoseconds.

A tsohon mutum, ba su rasa siffar

Ya bayyanar sa na biyu ƙarni na da yawa amo a kwamfuta da'ira, wanda bayar ta babba shahararsa da kuma m tallace-tallace. DDR2, kamar yadda ya biyo baya ƙarni iya aika da data a duka yanka, amma sauri bas zuwa aika da data muhimmanci inganta ta yi. Bugu da kari, da m abu shi ne wani babban makamashi yadda ya dace - at 1.8 V. Idan shi yana da wuya ko ta yaya abin ya shafa da sauran hoto na kwamfuta ikon, sa'an nan Ya rãyar (musamman tare da m amfani da baƙin ƙarfe) ne sosai rinjayi gaskiya ma.

Duk da haka, fasahar daina zama, idan ba ci gaba a nan gaba. Wannan abin da ya faru tare da zuwan gaba-tsara DDR3, a 2007, da manufar wanda shi ne hankali amma kwari kau daga kasuwar na tsufa DDR2. Duk da haka, ko da shi ne "tsufa" yana nufin mai cikakken rashin gasa tare da sabon fasaha?

Kadai tare da tsara ta uku,

Bugu da kari da na al'ada baya incompatibility, DDR3 yawan wakilta dama fasaha sababbin abubuwa a cikin RAM Standards:

• Iyakar goyon girma ga serial motherboard ya karu daga 16 zuwa 32 GB (cikin kudi na daya module iya isa 16 maimakon tsohon 8 GB).
• Higher mita data, wanda shi ne akalla 2133 MHz, kuma matsakaicin - 2800 MHz.
• A karshe, da misali ga kowane sabon ƙarni na rage yawan kuzarinka: 1.5 a kan 1.8 a karo na biyu tsara. Bugu da kari, bisa DDR3 aka tsara biyu mafi gyare-gyare: DDR3L da LPDDR3, cinyewa 1.35 V da kuma 1.2 V, bi da bi.

Tare da sabon gine sun kuma ya karu da Lokutan, amma yi drop an biya diyya daga wannan mafi girma aiki mitoci.

Yadda za a warware da mai saye

Da mai saye - ba wani ci gaban m. Baya ga fasaha halaye na mai saye ne ba kasa muhimmanci shi ne farashin da samfurin kanta.

A farkon wani sabon ƙarni na kwamfuta hardware tallace-tallace na wani na da misali kudin zai zama mafi girma. A wannan irin RAM sabon farko zo a kan kasuwar tare da manya-manyan farashin bambanci idan aka kwatanta da baya.

Duk da haka, da karuwa a yawan aiki tsakanin al'ummomi, a mafi aikace-aikace, idan sun yi ba ya nan, shi ne kawai m Figures, a fili ba su cancanta ba na manyan overpayments. The kawai dama lokacin komawa mulkin zuwa wani sabon ƙarni na RAM - matsakaicin fall a farashin tag har zuwa baya matakin (a cikin wannan kashi tallace-tallace SDRAM ko da yaushe ya faru, wannan shi ne yanayin da DDR2 da DDR3, shi ke kawai ya faru a game da wani iri-sabon DDR3 da DDR4). Kuma kawai to, a lõkacin da farashin da overpayment tsakanin karshe kuma baya tsara zai zama danda m (wanda yake da isasshen ga kananan yi riba), shi ne kawai a cikin wannan halin da ake ciki za mu iya tunani a game da maye gurbin da RAM.

Bi da bi, da masu kwakwalwa tare da DDR2-memory ya saya wani sabon nau'in RAM ne mafi m, a duk kawai tare da cikakken inganci ga m processor sauyawa, tana goyon bayan sabuwar type, da kuma wani sabon motherboard (kuma shi ya sa hankali hažaka ga bangaren matakin zuwa ranar, da goyon bayan DDR4 -Memory: ta yanzu farashin DDR3 ne a kan wani daidaitaka tare da, da kuma ci gaban tsakanin hudu kuma na biyu ƙarni zai zama fiye da pronounced fiye da tsakanin uku da na biyu).

A cikin wani akwati, idan irin wannan mai amfani kyautayuwa kaucewa ba su shirya, yana yiwuwa su yi daidai da DDR2, farashin wanda yake yanzu mun gwada low. Isar da shi kawai kara, idan ya cancanta, jimlar adadin RAM kama kayayyaki. Halatta iyãkõkin irin wannan memory ko da a yau tare da fiye da rufe duk da bukatun masu rinjaye na masu amfani (a mafi yawan lokuta DDR2 2GB ƙarin module zai zama isa ya shigar), da kuma rata a yi tare da na gaba tsara gaba daya uncritical.

Mafi qarancin farashin ga babban memory (ɗauke shi zuwa lissafi kawai tabbatar brands samfurori Hynix, Kingston, kuma Samsung) za su iya bambanta dangane da yankin zama na mai saye da ya zaba store.