The two pci slots don't work de pc doesnot reconise the hardware which is in the pci slot

FOLLOW Anti-Static Procedures

Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.
Relieve your body of Static BEFORE, reaching inside your unplugged from power computer.

Computer on a table, computer unplugged from power, computer case open:
TOUCH an unpainted surface, of the metal frame of the open, empty desktop computer case.
This action will relieve your body of Static.

IF, you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

1) On the HP Support page above, click on - How to - in the list.
On the next page click on - Adding/Replacing hardware

Now click on -
Adding or Replacing an Expansion Card (Video Card/Sound Card,etc...)

[A video starts automatically when you go to the above page ]

Your Wireless Adapter Card is based on the PCI Express technology.
It uses a PCI-Express x1 slot,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01324212&tmp_task=prodinfoCategory&cc=us&dlc=en&lc=en&product=3740326

One of the two small Black slots at the bottom of the motherboard.
(Longer Black slot is a PCI-Express x16 slot. This is for a graphics card - ONLY)

PCI-Express x1 slots, and PCI-Express x4 slots, do not use a Lock on them.
A PCI-Express x16 slot, does have a Lock on it. A small lock arm.
(Gently PULL UP a little, to install graphics card, or remove. It looks like you press down. Nope. Up. )

http://en.wikipedia.org/wiki/Pci_express

http://en.wikipedia.org/wiki/File:PCIExpress.jpg

(Starting at Top, going down;
PCI-Express x4
PCI-Express x16
PCI-Express x1
PCI-Express x16
,and PCI slot.

For additional questions please post in a Comment.
Regards,
joecoolvette

http://www.evertek.com/viewpart.asp?auto=58002&cpc=NEWARR

Three views shown.

http://www.revolutionpc.net/store/Asus-Essentio-Ultimate-Desktop-Computer.html

Scroll down to the photos towards the bottom.

Looking at the Front of the computer, the LEFT Side panel removes.
Remove the Philips head screw located towards the Top, on the Side Panel's edge, and the Bottom screw on the Side Panel's edge.

Pull back on the raised fingergrip, formed out of the back of the Side Panel.
The panel pulls back so far, then is tilted out, and removed.

-> FOLLOW Anti-Static Precautions

Anti-Static Precautions:
Your body carries Static electricity. Static WILL fry out (Short Circuit), the delicate hardware components inside a computer.

Relieve your body of Static BEFORE reaching inside your computer.

Computer on a table, computer Unplugged from power, computer case open;
TOUCH an unpainted surface, of the metal frame of the open computer case.
This action will relieve your body of Static.

IF you leave your computer in the middle of working on it, be SURE to Touch the metal frame again upon your return.

You may also wish to remove all cables from the computer, and lay it on it's side for easier access to the motherboard.

http://www.ebay.com/itm/OEM-ASUS-ESSENTIO-CG5270-P5QL-VM-MOTHERBOARD-61-MIB8Q3-01-US-TESTED-/170893854322?pt=Motherboards&hash=item27ca114672

Look at the right side of the motherboard, and the two long White PCI slots.
Above them is a long Blue PCI-Express x16 slot. This is used for a graphics card.

Above it is a small White slot. This is a PCI-Express x1 slot.

If a PCI slot is open you can use it for a Sound Card.
If not, and the white PCI-Express x1 slot is open, you can use it.

Examples of Sound Cards used in a PCI slot, and a PCI-Express x1 slot;

1) PCI;

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4459743&CatId=2771

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2941927&CatId=2771

On the back of the computer case framework is a small 'door', that holds the expansion cards in place.
The Thumbscrew is loosened, and this allows the door to swing open.

Find the appropriate expansion slot cover, that matches up to the slot your wish to use, and remove it.
Note that the expansion slot covers, do Not line up inline with an expansion slot on the motherboard.

(Expansion Slot; i.e., PCI, or PCI-Express x16, or PCI-Express x1 )

The expansion slot on the motherboard, is usually one space over from the expansion slot cover on the back.

[Don't believe that is worded correctly, but you will see what I mean with the Side Panel off, and looking at the motherboard ]

Yes. It's a lot of fun(?) trying to keep the expansion slot covers in place, expansion cards in place, and trying to close that 'door' properly.

[Look close. The bracket for the expansion card, (In this case a Sound Card), fits in little depressions in the metal framework of the computer case; or the brackets half-moon hole, will fit over a small peg, in the computer case framework ]

For additional questions please post in a Comment.

Regards,
joecoolvette

...........................................!O_O!...........................................................

WHY would you want to do that?

There is a PCI-Express x1 slot on the motherboard.
Black in color, and in-between the black PCI-Express x16 slot, and a white PCI slot.

Use the PCI-E x1 RAID adapter card in the PCI-E x1 slot, and a PCI-Express graphics card in the PCI-E x16 slot. Sheesh!

A PCI-Express slot is not an evolved PCI slot.
Completely different technologies.

PCI uses a shared Parallel bus architecture, while PCI-Express is based on Serial point-to-point.

So your idea of how to 'fix' your problem, is to use a PCI-E x1 card in a PCI-Express x16 slot, and a PCI graphics card in a PCI slot?

Completely backwards.

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

PCI-Express x16 slot uses the same lanes from the Northbridge, as the OnBoard video?

UTTER NONSENSE!

The Northbridge chip handles the Faster capabilities of a computer.
Handles the Processor, Ram Memory, and HIGH-SPEED Graphics.

HIGH-SPEED graphics is the Accelerated Graphics Port (AGP) technology, and the PCI-Express technology.

The Southbridge chip handles the Slower capabilities of a computer.

The PCI bus is one of those slower capabilities handled by the Southbridge chip.

The PCI bus is also a shared bus. This slows data down.
The AGP bus, and PCI-Express bus are Not shared. They also have a direct link to the Northbridge chip.

The PCI Bus has to go through the Southbridge chip, which has to go through the Internal Bus, THEN to the Northbridge chip.

OnBoard video, or Integrated Graphics, uses the PCI bus.
When you inserted the PCI-E x1 RAID card in the PCI-Express x16 slot, and a PCI graphics card in the PCI slot, BIOS just assigned another IRQ for the PCI-Express x16 slot.
(Interrupt Request)

No fancy technology going on there.

Backwards technology going on with a PCI-Express x1 card in a PCI-Express x16 slot, though.

I do not concur, and do not think that is a good solution, Kevin.

Regards,
joecoolvette

1) It has an Intel G35 Express motherboard chipset,

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Core_2_chipsets

Under the - Chipset heading on the left, scroll down to - G35

Note that under the - Graphics heading, all the way to the right, that the Intel G35 Express chipset;

1) Will support a PCI-Express x16 expansion slot. This means a PCI-Express graphics card can be used, IF, there is a PCI-Express x16 slot on the motherboard.

[ PCI-Express is a technology. The current PCI-Express technology is PCI-Express 2.0

There is a PCI-Express x1 expansion slot, and a PCI-Express x16 expansion slot. (Not relating to Your computer at the moment)

The PCI-Express x1 slot is Not used for a graphics card.
The PCI-Express x16 slot IS,

http://en.wikipedia.org/wiki/PCI_Express ]

2) Has Intel GMA X3500 Integrated Graphics.
Meaning if there is NO graphics card installed right now, the computer is using Integrated Graphics, (Intel GMA X3500,

http://en.wikipedia.org/wiki/Intel_GMA#GMA_X3500

Now,...you are essentially working on a laptop with a touchscreen.
Once you remove the 10 screws from the Back Cover, and remove the cover, you are looking at the exposed circuitry of the computer.

You NEED to follow Anti-Static Precautions. This cannot be performed as on a regular desktop computer. Touching the metal frame (Of the unplugged from power computer) will do you No good.

You need to use an ESD wrist strap, and connect it's alligator clip to a good ground source. [ Electro Static Discharge]

Your body carries Static electricity. Static WILL fry out (Short Circuit) the delicate hardware components inside a computer.

With the Back Cover off the manufacturer knows all of the hardware components are exposed. This means the person working on the computer should be aware of Static issues, and use proper tools.

The average consumer is not aware of this. This is why only a ram memory upgrade is recommended by the manufacturer. (Before they went out of business)

This is why there are no service manuals released, also.
Only for the qualified authorized service techs.

So,...let's look together. See if there is a PCI-Express x16 slot, for one.
It can be any color. Will be longer than any other expansion slot on the motherboard. The PCI slots (Usually white) are not as long.
(164 contact pins. 82 on each side)

These examples of a PCI slot, and versions of a PCI-Express slot, are all the same color. (Yellow) Not usual for a desktop computer.

http://en.wikipedia.org/wiki/File:PCIExpress.jpg

The top example is an example of a PCI-Express x4 slot.
Hardly EVER used, I didn't mention it.
Has 64 contact pins. 32 on each side.

The next slot down is an example of a PCI-Express x16 slot.
164 contact pins. 82 on each side.

Next down is an example of a PCI-Express x1 slot.
36 contact pins. 18 on each side.

Next down is another example of a PCI-Express x16 slot.

Last example is an example of a PCI slot. TOTALLY different technology than PCI-Express.
124 contact pins. 62 on each side. (Unless PCI that is 64-bit)

IF, there is a PCI-Express x16 slot on the motherboard, you can use PCI-Express 1.1 or 2.0 graphics cards.

You need to be concerned with;

A) How much height is available for the graphics card, and how much length? Check the measurements inside the computer. Match to dimensions of the graphics cards you are looking at.

B) How much POWER does the graphics card require? It's in the Minimum Requirements stated for the graphics card.
How much power is available to the all-in-one computer?

This could be an instant stopping block.

AMD ATI Radeon graphics cards generally use less power, than a comparable Nvidia graphics card.

C) Worried about your computer per se uses DDR Sdram ram memory, and the graphics card uses GDDR3 ram memory? (Just an example. Not directly related to Your computer)

Don't be. Doesn't matter what graphics memory a graphics card uses.

The graphics card does Not rely on the system resources (Processor and Ram Memory) of the computer.
A graphics card has it's own Processor, (GPU. Graphics Processing Unit), and graphics ram memory.

For additional questions, or to have me explain in further detail, or to clarify, post in a Comment.

Regards,
joecoolvette

A version that is Wireless N.

You can install a Wireless N adapter card in any available (Open)
white PCI slot, or use a Wireless N adapter that plugs into any available USB port.

1) Dell Support > Studio XPS 8100 Desktop PC > Service Manual,

http://support.dell.com/support/edocs/systems/studio8100/en/sm/index.htm

I would like you to click on - Technical Overview

Now on System Board Components

The number 23 points to the white PCI slot.
The numbers 24 and 26 point to a PCI-Express x1 slot.

You can buy a Wireless N adapter card to fit either a PCI slot, or a PCI-Express x1 slot.

{NOTE* Number 27 points to a PCI-Express x16 slot.
This = NO.
This expansion slot is used for a graphics card, ONLY }

Examples of a Wireless N adapter card for a PCI slot, and a PCI-Express x1 slot,

A) PCI: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=4389486&CatId=2701

B) PCI-Express x1:
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=788312&CatId=2702

C) USB:

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5079829&CatId=2688

Why use anything but a USB Wireless N adapter?
I don't know. They allow me to toot the whistle, but not drive the train.

Information on PCI, and PCI-Express;

PCI:
http://en.wikipedia.org/wiki/PCI_local_bus

PCI-Express:
http://en.wikipedia.org/wiki/PCI_Express

For additional questions please post in a Comment.

Regards,
joecoolvette

You mean will the Asus ATI Radeon HD6450 with 1GB of graphics memory, work in a Compaq Presario SR2020NX Desktop PC?

Yes.

The Compaq Presario SR2020NX Desktop PC has a PCI-Express x16 expansion slot.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00757470&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3245048

{Motherboard illustration and photo are towards the bottom of the page}

Look at the specifications.
Scroll down to the heading - Expansion slots.

Three PCI. (PCI expansion slots)

One PCI Express x16 graphics.

NOTE*
Looking at the motherboard illustration, it is Wrong.
Shows - PCIEX1 (PCI E X1)
According to the specifications it is a PCIEX16 expansion slot. (PCI-E x16)

A PCI-Express x1 slot has 36 contact pins. 18 on each side.

In comparison a PCI slot {White} has 124 contact pins. 62 on each side.

Looking at the photo of the supposed PCI-E x1 slot they show, the black PCI-Ex1 slot is longer than the white PCI slots.

It is a PCI-Express x16 slot with 164 pins. 82 on each side.



The Asus ATI Radeon HD6450 uses a PCI-Express x16 expansion slot.

So you know the graphics card will fit. Low-profile to boot.

Power requirement:
The Compaq Presario SR2020NX desktop computer comes with a 300 Watt power supply.
(Although in actuality it's more like 70 percent of the maximum rated wattage. 210 Watts)

Enough power for the computer, and the graphics card.
ATI graphics cards do not use as much power as a comparable Nvidia graphics card.

Concerned that the Asus graphics card uses DDR3 graphics ram memory, and the Presario SR2020NX uses DDR2 Sdram ram memory?

Don't be. The graphics cards graphics memory runs independent of the computer's ram memory.

Information on PCI-Express,

http://en.wikipedia.org/wiki/PCI-Express

For additional questions please post in a Comment.
(Top right of your page, blue Comment)

Regards,
joecoolvette

Hi

Thank you for your query

Your motherboard will have a graphics card slot, it will be either a AGP slot this will be above the 3 or 4 white PCI slots and will be brown in colour.

Or it wil be a PCI-E slot again above the PCI clots but may be purple in colour

If this has been useful please leave postive feedback/vote/testimonial - Thank You Again

try to check the BIOS maybe the slot are being disable... change it to ENABLE.. if nothing happen then possible is your pci slot is defective... but don't lose hope. try to check your card maybe there's something wrong with the hardware... otherwise, your motherboard..

There is no PCI-E slot on this motherboard. It has an AGP 8x slot and 3 PCI slots, but no PCI-E. Therefore, even if you could manage to get the PCI-E card physically into the slot it will never work.

Here is a link to the manual - http://dlcdnet.asus.com/pub/ASUS/mb/sock478/p4p800-vm/e1338_p4p800-vm.pdf

There are several cards out ther that will fit into a standard PCI slot. Here are a couple of links that lists them. You can usually check any PC hardware reseller online and sort them by type, showing only cards that are connected through a PCI slot.

Tigerdirect
Newegg