Dell Vostro 2521 Drivers for Windows 7, 8.1 and 10
The Dell Vostro 2521 is a 15.6-inch business laptop from 2013, built around a 3rd-generation Intel processor and the Intel HM77 chipset. After a clean install of Windows, the usual symptoms are easy to recognise: the screen is stuck at a low resolution, there is no sound, Wi-Fi and Bluetooth are missing, the USB 3.0 ports ignore your devices or the SD card slot is not detected. This page lists the essential driver packages Dell publishes for the Vostro 2521, explains which ones your particular laptop needs (several packages exist because Dell sold different wireless and graphics options) and gives an installation order that avoids most problems.
Dell Vostro 2521 at a glance
Knowing what is inside the laptop explains why the driver lists below look the way they do.
| Component | Details |
|---|---|
| Display | 15.6-inch LED, 1366 x 768 |
| Processor and chipset | 3rd-generation Intel Pentium or Core (Ivy Bridge), Intel HM77 Express chipset |
| Graphics | Intel integrated graphics (Dell’s package is named HD Graphics 4000); some configurations add a switchable AMD Radeon HD 7670M |
| Memory and storage | DDR3, two SO-DIMM slots (up to 8 GB), 2.5-inch SATA drive, DVD drive |
| Ports | 2 x USB 2.0, 2 x USB 3.0, HDMI, RJ-45 Ethernet, headphone/microphone jack, card reader (no VGA port) |
| Audio | Realtek ALC-3221 HD audio |
| Wired network | Realtek RTL8105E 10/100 Ethernet |
| Wireless | Dell Wireless Wi-Fi + Bluetooth module; the model varies (1703, 1704, 1705, and 1708 or 1901 in the Windows 10 packages) |
Before you start
- Know your Windows type. Press the Windows key + Pause, or open Settings → System → About, and read “System type”: 32-bit or 64-bit. Windows 8.1 packages on this page are 64-bit only.
- Get the network drivers first, offline. After a clean install you may have no internet. On another computer, download the Ethernet and Wi-Fi packages, copy them to a USB drive and install them first on the Vostro. A network cable is the easiest way to get online once the Ethernet driver is in.
- Create a restore point (Start → type “Create a restore point”). If a graphics driver misbehaves you can roll back.
- Run installers as administrator (right-click the file → Run as administrator) and let each one finish before starting the next.
Identify your hardware
Service Tag and model
The label on the bottom of the laptop shows the model and the Dell Service Tag. Entering the Service Tag at dell.com/support shows the exact configuration Dell shipped, including the wireless module, and is the most reliable way to settle any doubt.
Wi-Fi and Bluetooth module
This is the choice that confuses most people, because Dell used different modules in the same laptop. Open Device Manager (press Windows key + R, type devmgmt.msc) and expand Network adapters. If a driver is already present, the adapter name shows the module, for example “Dell Wireless 1704”. If it only shows “Network Controller” under Other devices, open its Properties → Details → Hardware Ids and search for the first line, or read the Service Tag configuration as above.
| Your module | Windows 7 and 8.1 | Windows 10 |
|---|---|---|
| Dell Wireless 1703 or 1705 | Wireless 1705 / 1703 WLAN + Bluetooth 4.0 | Wireless 1703 / 1705 / 1901 Wi-Fi + Bluetooth |
| Dell Wireless 1704 | Wireless 1704 WLAN + Bluetooth | Wireless 1704 / 1708 Wi-Fi and Wireless 1704 Bluetooth |
| Dell Wireless 1708 or 1901 | No package listed for these versions | 1708: Wireless 1704 / 1708 Wi-Fi. 1901: Wireless 1703 / 1705 / 1901 |
Graphics
In Device Manager, expand Display adapters. If you only see “Microsoft Basic Display Adapter”, no graphics driver is installed yet. Install the Intel driver first. If a second adapter named AMD Radeon appears afterwards, your laptop has switchable graphics and you should also install the AMD package. If there is no AMD entry, skip the AMD download.
Driver downloads
All buttons link to Dell’s download server (downloads.dell.com). This blog does not host or modify any files. Versions are the ones shown in Dell’s package names, and the code on each button is Dell’s 5-character package ID.
Windows 7 (32-bit and 64-bit)
| Driver | Version | What it is for | Download |
|---|---|---|---|
| Intel HM77 Chipset Driver | 9.3.0.1021 (A01) | Installs the Intel chipset INF files so Windows recognises the motherboard. Install this first. Same file for 32-bit and 64-bit. | Download C0M3R |
| Intel USB 3.0 eXtensible Host Controller Driver | 1.0.8.251 (A05) | Needed on Windows 7 for the two USB 3.0 ports to recognise devices. | Download TV2PP |
| Intel HD Graphics 4000 Driver (32-bit) | 9.17.10.2867 (A02) | Intel integrated graphics: native 1366 x 768 resolution, brightness control, video playback. | Download G2M46 |
| Intel HD Graphics 4000 Driver (64-bit) | 9.17.10.2867 (A03) | The same driver for 64-bit Windows 7. | Download 8R603 |
| AMD Radeon HD 7670M Graphics Driver | 8.982.6.0 (A02) | Only if your laptop has the AMD Radeon option (switchable graphics). Install after the Intel driver. | Download DY8P8 |
| Realtek ALC-3221 Audio Driver | 6.0.1.6788 (A03) | Speakers, headphone jack and built-in microphone. | Download 149YN |
| Realtek RTL8105E-V Ethernet Controller Driver | 7.061.0612.2012 (A01) | Wired Ethernet (RJ-45) port. | Download 4XPJF |
| Dell Wireless 1705 / 1703 WLAN + Bluetooth 4.0 | 10.0.0.309 (A03) | Wi-Fi and Bluetooth, if your wireless module is a Dell Wireless 1705 or 1703. | Download 9T8XY |
| Dell Wireless 1704 WLAN + Bluetooth 4.0 | 6.30.223.228 (A05) | Wi-Fi and Bluetooth, if your wireless module is a Dell Wireless 1704. | Download VHG5F |
| Realtek Card Reader Driver | 6.1.8400.39030 (A01) | Built-in SD / MMC card slot. | Download 1FPF5 |
| Dell Touchpad Driver | 18.0.1 (A08) | Smooth pointer movement, two-finger scrolling and gestures. | Download JCY9W |
Windows 8.1 (64-bit)
| Driver | Version | What it is for | Download |
|---|---|---|---|
| Intel HM77 Chipset Driver | 9.4.0.1026 (A00) | Intel chipset INF files. Install this first. | Download 61V9W |
| Intel HD Graphics 4000 Driver | 10.18.10.3316 (A02) | Intel integrated graphics: native resolution, brightness control, video playback. | Download W1PPW |
| AMD Radeon HD 7730M / 8730M / 7670M / 8670M / 8850M / 8870M Driver | 13.151.0.0 (A00) | Only if your laptop has an AMD Radeon adapter. Install after the Intel driver. | Download 3JMFD |
| Realtek ALC-3221 HD Audio Driver | 6.0.1.7023 (A00) | Speakers, headphone jack and built-in microphone. | Download 8F9KD |
| Realtek RTL8105E Ethernet Controller Driver | 8.018.0621.2013 (A00) | Wired Ethernet (RJ-45) port. | Download DF29H |
| Dell Wireless 1705 / 1703 WLAN + Bluetooth 4.0 | 10.0.0.309 (A04) | Wi-Fi and Bluetooth, if your wireless module is a Dell Wireless 1705 or 1703. | Download C7DY0 |
| Dell Wireless 1704 WLAN + Bluetooth | 6.30.223.245 (A03) | Wi-Fi and Bluetooth, if your wireless module is a Dell Wireless 1704. | Download GR38D |
| Realtek Card Reader RTS5179 Driver | 6.2.9200.39050 (A00) | Built-in SD / MMC card slot. | Download 7HRCT |
| Dell Touchpad Driver | 18.0.1 (A08) | Smooth pointer movement, scrolling and gestures. | Download JCY9W |
Windows 10 (32-bit and 64-bit)
| Driver | Version | What it is for | Download |
|---|---|---|---|
| Intel HM77 Chipset Driver (32-bit) | 9.3.0.1021 (A01) | Intel chipset INF files for 32-bit Windows 10. Install this first. | Download C0M3R |
| Intel HM77 Chipset Driver (64-bit) | 9.4.0.1026 (A00) | Intel chipset INF files for 64-bit Windows 10. Install this first. | Download 61V9W |
| Intel HD Graphics 4000 Driver (32-bit) | 10.18.10.4242 (A00) | Intel integrated graphics: native resolution, brightness control, video playback. | Download JNTNK |
| Intel HD Graphics 4000 Driver (64-bit) | 10.18.10.4242 (A00) | The same driver for 64-bit Windows 10. | Download RRDD3 |
| AMD Radeon HD 7730M / 8730M / 7670M / 8670M / 8850M / 8870M Driver | 15.201.1101 (A01) | Only if your laptop has an AMD Radeon adapter. Install after the Intel driver. | Download 6YKW1 |
| Realtek High Definition Audio Driver | 6.0.1.7520 (A00) | Speakers, headphone jack and built-in microphone. | Download 21H15 |
| Realtek PCIe FE Family Ethernet Controller Driver (32-bit) | 2.43.2015.529 (A00) | Wired Ethernet (RJ-45) port. | Download RTTVY |
| Realtek PCIe FE Family Ethernet Controller Driver (64-bit) | 2.43.2015.529 (A00) | Wired Ethernet (RJ-45) port, 64-bit. | Download RTTVY |
| Dell Wireless 1704 / 1708 Wi-Fi Driver | 7.35.333.0 (A04) | Wi-Fi, if your wireless module is a Dell Wireless 1704 or 1708. | Download XT97T |
| Dell Wireless 1704 Bluetooth Driver | 12.0.1.690 (A00) | Bluetooth for the Dell Wireless 1704 module. Install together with the 1704 Wi-Fi driver. | Download 0DMHW |
| Dell Wireless 1703 / 1705 / 1901 Wi-Fi + Bluetooth Driver | 10.0.0.0 (A00) | Wi-Fi and Bluetooth in one package, if your module is a Dell Wireless 1703, 1705 or 1901. | Download N80VN |
| Realtek Card Reader Driver | 6.1.8400.39030 (A01) | Built-in SD / MMC card slot. | Download 1FPF5 |
| Dell Touchpad Driver | 19.0.9.4 (A00) | Smooth pointer movement, scrolling and gestures. | Download X78P8 |
Installation order and steps
The order matters because later drivers depend on earlier ones.
- Network first (offline, from a USB drive if needed): Ethernet, then the Wi-Fi/Bluetooth package that matches your module. This gets you online for everything else.
- Chipset. It teaches Windows about the motherboard. On Windows 7 also install the Intel USB 3.0 package. Restart if asked.
- Graphics. Intel HD Graphics first, then AMD only if you have a Radeon adapter. The screen may flicker or go black for a few seconds; this is normal.
- Audio (Realtek).
- Card reader (Realtek).
- Touchpad. The pointer works without it, but scrolling and gestures need it.
For each package: download the .exe, right-click and choose Run as administrator, click Install (or Extract and then Next, if the package asks), and wait for setup to finish. Restart after the chipset, graphics and network drivers even if Windows does not ask. Afterwards open Device Manager and confirm that no yellow warning icons remain.
Troubleshooting
No Wi-Fi networks appear
Check that the wireless radio has not been switched off by an Fn key combination or the Windows airplane mode setting. Then confirm in Device Manager that the module name matches the package you installed. If you installed several wireless packages by mistake, uninstall the extras from Control Panel → Programs and reinstall only the matching one.
Screen is stretched or limited to a low resolution
The native resolution is 1366 x 768. If Windows offers only 1024 x 768 or lower, the Intel graphics driver is missing or did not install. Install the Intel HD Graphics package for your Windows version and restart.
No sound
Install the Realtek audio driver, then right-click the speaker icon → Playback devices and make sure Speakers is the default device and is enabled. Try the headphone jack to rule out a speaker fault.
USB 3.0 ports do not detect devices (Windows 7)
Windows 7 has no built-in USB 3.0 driver. Install the Intel chipset package and then the Intel USB 3.0 eXtensible Host Controller driver, and restart. In the meantime the USB 2.0 ports work normally.
Touchpad does not scroll or respond to gestures
Install the Dell Touchpad driver, restart, then open Control Panel → Mouse and check the device settings to enable scrolling.
SD card is not detected
Install the Realtek card reader driver and restart. Test with a second card to rule out a faulty card.
Black screen or error after the graphics driver
Restart in Safe Mode (press F8 during boot on Windows 7, or use the recovery options on Windows 8.1 and 10), uninstall the graphics driver or use the restore point you created, then reinstall in the order above. On switchable-graphics models, make sure the Intel driver went in before the AMD one.
FAQ
Do I need every driver in the table?
No. Chipset, graphics, audio, Ethernet, card reader and touchpad apply to everyone. Install only the Wi-Fi/Bluetooth package that matches your module, and skip AMD graphics unless a Radeon adapter is shown in Device Manager.
Which Windows versions are covered?
Windows 7 (32-bit and 64-bit), Windows 8.1 (64-bit) and Windows 10 (32-bit and 64-bit). Windows 11 is not an option: the laptop’s processor generation is below Microsoft’s official Windows 11 requirement.
Can I use the 32-bit drivers on a 64-bit system, or the Windows 7 ones on Windows 10?
No. Use the section that matches both your Windows version and your system type. Mismatched packages normally refuse to install.
Why are there so many wireless drivers?
Dell fitted different Wi-Fi and Bluetooth modules (1703, 1704, 1705, and later 1708 and 1901) in the same laptop. Use the table in “Identify your hardware” to pick the one that matches yours.
A download link does not work. What can I do?
Dell occasionally reorganises its download server. Search Dell’s support site for the 5-character code shown on the button (for example 149YN), or enter your Service Tag at dell.com/support. You are also welcome to leave a comment below and we will update the link.
Is it safe to download from this page?
The buttons link directly to Dell’s server and nothing is hosted here. Check the publisher as described under “Stay safe” before running any installer.
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