I replace my memory on my hp pavilion 533w ,and now the power will not come on. how do I fix it?

wrong power supply it sounds like you fried your motherboard

Try a different power connector, if that doesn't work then it's time for a new cd-rom drive.

The combo uses two lasers - one for the dvd and the other for the cd. If the unit works perfectly on cd and at all on dvd then the dvd laser has died and the entire unit with it, it can't be fixed. Buy a new dvd writer and junk the old one.

You can go ahead and do that but if the computer stops working again it means the memory is bad. You need to purcahse another memorycard for the better computer performance.

Or if you still have computer warranty call the manufacturer and ask them to replace your memory card.

This is everything I could find on your computer.

Base processor and speed Celeron 2.0 GHz

• 400 MHz Front side
• Socket mPGA478

Back to top Chipset 845GL Back to top Motherboard manufacturer

• Manufacturer for computer serial numbers starting with KR and CH: Trigem Glendale
• Motherboard for computer serial numbers starting with MX: ASUS IT8708F NOTE: The serial number can be found printed on the back of the HP Pavilion computer, or while holding down the Ctrl and Altkeyboardkeys, press S. A screen will pop up with the serial number.

Back to top Memory Component Attributes RAM (installed)

Allocated to Video 256 / 2100 DDR

Up to 64MB Maximum allowed 1 GB (requires replacement of the installed 256 DIMM) Speed supported PC2100 / PC1600 Type DDR SDRAM DIMM slots Two Open slots One Back to top Hard drive 60GB Ultra DMA Back to top DVD-ROM/CD-RW combo drive 16x/8x/8x/40x maximum speed Back to top Diskette drive 1.44 MB (3.5-inch) Back to top Fax and data modem Cheetah 2 V.92 Modem Back to top Video graphics Integrated Intel Extreme Graphics with up to 64MB shared memory Back to top Sound/audio Integrated AC97 audio Back to top USB specification USB 2.0 Back to top Network Integrated on motherboard: 10/100Base-T LAN interface

Check to see if you're running the latest bios revision. It's on HP's support page for your model.

Open the desktop, and re-seat the memory. Let me know if that works.

yes, you can providing it is the same family, ie ddr2888 or 553 ect but might slow machine down, It is always better to do an exact match,

pci

90 mm