Nguyên nhân có thể do quá nhiều ứng dụng chạy ngầm, thiếu dung lượng RAM, hoặc ổ cứng bị phân mảnh. Khắc phục bằng cách giải phóng bộ nhớ, chống phân mảnh ổ cứng, và nâng cấp RAM.
Bộ nguồn DELL 250 Watt - 300 for Optiblex 390 790 990 3010 7010 9010 MT - CD4GP, 6R89K, XW600, XW601 • Nhà sản xuất : DELL • Xuất xứ : Chính hãng • Mã sản phẩm : CD4GP, 6R89K • Loại sản phẩm : Power supply • Tính năng : Nguồn sử dụng cho Máy tính • Công suất : 300 W • Điện áp : 100 - 220 V • Khả năng tương thích : Nguồn cho máy tính Dell Optiblex 390 790 990 3010 7010 9010 MT
CPU : Intel® Core™ i7-7600U 4*2.8Ghz (Turbo 3.9 GHz cache 4Mb) Ram : 8GB DDR4 bus 2400 GHZ Hard disk : SSD 256 Gb truy xuất nhanh Màn hình : 12.5 inch Full HD (1920 x 1080) VGAON : Intel® HD graphics 620 Kết nối: LAN Gigabit, Wifi 5Ghz, Bluetooth, HDMI, USB 3.0 , audio + mic combo, thẻ nhớ MicroSD Trọng lượng : 1.2 kg Kích thước : 304 x 207 x 17.3 mm
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