Hp d530 bios update 786B2

The embedded video chip in this pc or the optional add-on video cards that were offered with it are extremely old models, that are just Dx8 compatible. Win 7 need a video card that is at least Dx9.2 compatible = you will need to upgrade your video with something like
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=7189043&CatId=318

go to the hp compaq site search for your pc model it should be accurate fin the new bios and download it and just run the bios update and restart the PC your bios will get updated but make sure to give the proper information for the model of the pc

Go to www.hp.com
on the top you can find option " Support & Drivers "
under Step 1 put a check on Download drivers and software
under Step 2 put the product name / number of the pc
select the operating system of the pc
and download the latest version of bios
Hope it works for you
All the best!!!

1. Click Start, right-click My Computer, and then click Properties.
2. Click Device Manager.
3. In Device Manager, expand Processors.
4. Double-click the processor, and then click the Details tab.
5. Click to select the Hardware Ids in the drop-down list.
6. Examine the information in the details pane to determine whether the computer uses an older Intel Pentium.

The latest version is 2.44, try it out or change the RAM as they might not be the correct RAM for the sys. Here is the link
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=316722&prodTypeId=12454&prodSeriesId=316720&swLang=13&taskId=135&swEnvOID=1098#120

The current bios for your business d530 is 3.00A
If you have that, you are current.
If not, here it is: Follow the directions aftre going to the bios section

http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=316715&prodTypeId=12454&prodSeriesId=316713&swLang=13&taskId=135&swEnvOID=1098

You need to update your Intel processor microcode patch. This can be updated independently of the system BIOS. The latest microcode update for the d530 786B2:
http://h18007.www1.hp.com/support/files/hpcpqdt/us/download/21270.html

If you use this and still see the POST error message, please go into F10 Setup under System Properties and report the detailed description, including the stepping, of the processor in your system.

drivers.softpedia.com/get/BIOS/Others/HP-Compaq-d530-BIOS-109-A.shtml

no its not a hdd problem, its a mobo problem max u can use is 160 with that pc, what u can try is a bios upgrade and hopefull it helps

go here for the updates:

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=316715&lang=en&cc=us&prodTypeId=12454&prodSeriesId=316713&taskId=135

choose ur os like xp or vista

than download the updates