Compaq 300 320 321 420 421 620 and 621 Notebook PC and 420 and 620 Notebook PC - Page 11

Category, Description, graphics, GL40 chipset, Discrete, chipset, Memory, Hard drives

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Category Memory Hard drives Description UMA graphics, GL40 chipset UMA graphics, GM45 chipset Discrete graphics, PM45 chipset 35.6-cm (14.0-in) HD LED backlight panel: √ √ √ ● 1366×768 AntiGlare ● 1366×768 AntiGlare for webcam ● 1366×768 BrightView ● 1366×768 BrightView for Webcam 39.6-cm (15.6-in) HD LED backlight panel: √ √ √ ● 1366×768 AntiGlare ● 1366×768 AntiGlare for webcam ● 1366×768 BrightView ● 1366×768 BrightView for Webcam 2 customer-accessible/upgradable memory √ √ √ module slots Supports dual-channel memory √ √ √ Supports up to 4 GB of system RAM √ √ √ PC3-10600, 1333-MHz, DDR3 √ √ √ Supports the following configurations in all √ √ √ countries and regions: ● 4096-MB total system memory (4096MB × 1) ● 4096-MB total system memory (2048MB× 2, dual-channel) ● 3072-MB total system memory (2048MB + 1024-MB, dual-channel) ● 2048-MB total system memory (2048MB × 1) ● 2048-MB total system memory (1024MB × 2, dual-channel) ● 1024-MB total system memory (1024MB × 1) Supports 7.0 and 9.5-mm, 6.35-cm (2.50-in) √ √ √ hard drives Customer-accessible √ √ √ Serial ATA √ √ √ 3

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Category
Description
UMA
graphics,
GL40 chipset
UMA
graphics,
GM45 chipset
Discrete
graphics,
PM45
chipset
35.6-cm
(14.0-in) HD LED backlight panel:
●
1366×768 AntiGlare
●
1366×768 AntiGlare for webcam
●
1366×768 BrightView
●
1366×768 BrightView for Webcam
√
√
√
39.6-cm
(15.6-in) HD LED backlight panel:
●
1366×768 AntiGlare
●
1366×768 AntiGlare for webcam
●
1366×768 BrightView
●
1366×768 BrightView for Webcam
√
√
√
Memory
2 customer-accessible/upgradable memory
module slots
√
√
√
Supports dual-channel memory
√
√
√
Supports up to 4 GB of system RAM
√
√
√
PC3-10600, 1333-MHz, DDR3
√
√
√
Supports the following configurations in all
countries and regions:
●
4096-MB total system memory (4096-
MB × 1)
●
4096-MB total system memory (2048-
MB× 2, dual-channel)
●
3072-MB total system memory (2048-
MB + 1024-MB, dual-channel)
●
2048-MB total system memory (2048-
MB × 1)
●
2048-MB total system memory (1024-
MB × 2, dual-channel)
●
1024-MB total system memory (1024-
MB × 1)
√
√
√
Hard drives
Supports 7.0 and 9.5-mm, 6.35-cm (2.50-in)
hard drives
√
√
√
Customer-accessible
√
√
√
Serial ATA
√
√
√
3