Having problems with your HP Pavilion a6600f Desktop PC ?

My 2gb ram stick died, so I tried upgrade to 4gb

\015 My 2gb ram stick died, so I decided to upgrade to 4gb instead of just the 3gb from factory. Problem is - it won't boot with 4gb in it. It's the Vista Home Premium x64, and I've read it's 'supposed' to be ok. Is there something I'm doing wrong. (yes, I verified that I'm using the correct type, and that both of the new 2gb sticks work, just won't work together- and even tried a different brand)\015

Answers :

Most appreciated naturalgal66.
Perhaps you would like more information, to put together some of the information I stated in the Clarifications.

This is a motherboard block diagram,

http://en.wikipedia.org/wiki/File:Motherboard_diagram.svg

This relates to the motherboard model you have. Motherboards used for the Intel Core i7 are of a different design, and technology.

CPU as you know stands for Central Processing Unit, or for short - Processor.

The Processor 'communicates' through the Front Side Bus, (FSB), to the Northbridge chip. (Think of the FSB as a 'Data Highway'. Communication goes back, and forth)

The Northbridge chip handles the Ram Memory, and the high speed graphics card slot. (If used on a particular motherboard) Since it handles a high speed graphics card slot, it only handles PCI-Express or AGP.
Not PCI.

The Northbridge chip communicates through the Internal Bus to the Southbridge chip.

The Southbridge chip handles the slower capabilities of the motherboard.
Some examples are:
1) PCI, and PCIe.
(PCIe is PCI Express. It is PCI Express, but relates to the slower PCI Express x1. Not the faster PCI Express x16 used for graphics)

2) Onboard Audio

3) SATA, LAN, and USB ports

4) Ethernet
And other devices.

As you can see the Southbridge chip controls the Onboard graphics, (Integrated graphics) through a PCI bus.
It also controls anything that is installed in a PCI slot.

If you have time someday, you may want to look up some of the hardware, and technology used in a personal computer.
A lot of information can be found on Wikipedia.
You may want to type in Wikipedia's search box,

1) Northbridge (computing)
2) Southbridge (computing)
3) Front Side Bus
4) Sdram, (This page will start you with SDR Sdram. Single Data Rate Sdram. Links are also listed in blue for info on DDR Sdram, DDR2 Sdram, DDR3 Sdram, and includes the new technology coming, DDR4 Sdram)
5) Harddrive
6) Integrated Drive Electronics, (IDE)
7) SATA
8) RAID
9) Comparison of Nvidia chipsets (Also Comparison of Nvidia graphics processing units
10) Comparison of AMD chipsets (Also Comparison of AMD graphics processing units, and also to include Comparison of ATI graphics processing units.
11) GPU
12) Clock generator (Did you know that a quartz crystal, is used as an oscillator for a Processor?)

Anything you see in blue is a link to more information about it.

{Interested in knowing what's inside a Harddrive, or do you already know?

http://computer.howstuffworks.com/hard-disk.htm

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Posted on Jan 16, 2010

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