Khac phuc su co card man hinh

Da so nhung loi hien thi “kho hieu” tren monitor la do nhung hong hoc tu card man hinh gay ra, nhung tu mot trieu chung ma tim ra nguyen nhan thi rat kho, doi hoi phai co nhieu kinh nghiem.
 

1.Man hinh khong the hien sau khi vua install mot card man hinh moi

Thong thuong nguyen nhan la do card khong duoc lap dung vi tri hoac long chan de, hoac chua thiet lap dung yeu cau cua card moi gan. Ban hay kiem tra lai va lau sach chan de cung nhu khe cam (doi khe cam). Luu y: doi khi ban lai quen cam day noi tu man hinh den card sau khi vua install cai moi.

Mot so mainboard co kha nang tu dong vo hieu hoa card onboard mot khi he thong nhan ra su hien dien cua mot card roi thu 2, neu khong, ban phai vao BIOS de vo hieu hoa card onboard va kich hoat card AGP hoac PCIe.

Hau het cac card deu co output la tin hieu digital hoac analog hoac ca hai, mot khi ban da cam vao mot trong hai chan cam output, he thong se tu cau hinh ngay ma khong can ban thao tac, tuy nhien mot vai loai lai yeu cau nguoi su dung phai thay doi switch hoac jumper de chon loai tin hieu output la analog hay digital. Tin hieu digital dep hon va hau nhu deu duoc tich hop voi man hinh LCD.

Neu ban co 2 card man hinh hoac card man hinh ho tro 2 man hinh tro len, ban phai thiet lap che do Primary va Secondary cho tung cong output mot.

Tat ca deu duoc cung cap trong tai lieu di kem san pham thong qua hinh anh rat cu the de nguoi su dung tu minh lam theo.

2.“Out of Scan range” hoac mot thong bao loi tuong tu

Day la loi man hinh khong duoc ket noi voi ngo ra cua card hoac video adapter dua ra tin hieu khong tuong xung voi kha nang tao do phan giai hoac tan so refresh cua man hinh. Nhu ban biet, moi man hinh chi dat duoc kha nang phan giai toi da nao do, neu nam ngoai vung do man hinh se bao loi, doi khi no se toi den mai mai.

Cach tot nhat khi vua install mot card moi la ban hay de no o che do phan giai default de dam bao tinh an toan ma nha san xuat da an dinh. Viec thay doi chi can thiet khi ban phai su dung nhung ung dung, game co yeu cau ve do phan giai cao hon binh thuong.

3.Chu qua lon hoac qua nho

Card man hinh duoc thiet lap do phan giai qua cao hoac qua thap so voi kich thuoc cua man hinh, hoac Windows duoc cau hinh su dung font khong dung tieu chuan (font qua to hoac qua nho). Tat ca deu duoc thiet lap trong muc Properties: bam chuot phai len cho trong tren man hinh desktop, chon the Appearances (thay doi mau, font, kich co chu mac dinh he thong) va Settings (thay doi do phan giai, do sau cua mau). Ban co the su dung them nhung nut chinh tren man hinh de dieu chinh them cho hop ly.

4.Chu the hien lung tung, khong theo font gi het

Nguyen nhan la do driver khong dung voi card ban moi gan vao. Hay tai dung driver cho san pham. Neu nhu hien tuong xay ra khi he thong ban da lam viec on dinh truoc do thi co rat nhieu nguyen nhan can xet den.

Neu chu ban go trong mot ung dung nao do khac la nhung chu trong cac menu, start menu, tieu de ngoai Windows khong co van de gi, thi nguyen nhan la thuoc ve ung dung do, chang han Words thieu font can thiet de xem file tuong ung.

Neu font cua he thong chi bi loi voi ten cua mot vai ung dung nao do trong Start menu hay ngoai desktop thi nguyen nhan la do chuong trinh do su dung font la, khac voi font mac dinh cua Windows. Vi du nhung chuong trinh cua Trung Quoc su dung font chu Han se the hien nhung ky tu la hoac o vuong. Ban co the cai them font chu Han va chon lai font he thong. Tuy nhien, co the dieu nguoc lai se xay ra.

5.Sau khi he thong chay duoc mot luc thi su co ve hinh anh xay ra

Card video qua nong do nhiet do trong phong qua cao, hoac quat tan nhiet cho card bi hu, hoac quat trong thung may ngung hoat dong. Truong hop nay thong thuong CPU se tu restart hay shutdown may tinh do qua nong.

6.Video luon hoat dong tot cho den khi choi DVD o che do video playback thi su co xay ra

Dieu nay co the do bo xu ly trung tam (CPU) hoac video adapter khong dap ung noi toc do vuot qua kha nang, tran bo nho hoac co qua nhieu ung dung dang chay. Nhung neu no chi xuat hien trong he thong thoi gian gan day, sau khi ban thay doi hoac cau hinh mot so thu trong he thong, thi ban hay kiem tra nhu sau:

- Xac dinh rang o dia DVD dang chay o mode DMA chu khong phai PIO (neu khong biet ban co the bo qua buoc nay vi mode mac dinh la DMA).

- Neu ban dang su dung ket noi digital cho card va man hinh thi co the do xung dot nhung thiet bi qua cong USB. Hay ngat ket noi tat ca nhung thiet bi dung qua cong USB, bao gom ban phim, chuot..., sau do khoi dong lai he thong va kiem tra DVD-Video Playback. Neu van de bien mat, hay gan lai cac thiet bi ke tren tung cai mot cho den khi ban phat hien ra nguon gay xung dot. Viec giai quyet don gian la chon mot chuan ket noi khac, PS/2 hay COM chang han, hoac thay doi chuan ket noi giua card va man hinh.

7.Man hinh xuat hien nhung khoi mau trang, den, hoac mot mau nao do ngau nhien

Neu hien tuong xay ra ngay ca khi ban khong he di chuyen chuot hay chay ung dung nao do, nhung khoi mau xuat hien roi bien mat ngau nhien, thi van de co the do bo nho cua card man hinh bi loi. Cung co the ke den nhung nguyen nhan do card man hinh qua nong, chan cam khong chan chan. Hay tat may va go card man hinh ra lau lai that sach. Khi cam lai, hay cam sang khe khac neu van khong co ket qua. Xem xet lai muc do tan nhiet cua he thong. Neu van khong khac phuc duoc su co ban nen sua chua hoac thay doi card man hinh moi.

Tac gia PHAN THANH BINH