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CPU problem When i start the CPU it always hang?It display MAIN PROCESSOR: Pentium 4 on the monitor it should read its memory then continue until the logo of windows xp appears but it doesnt, what shall i do ?

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Re: CPU problem

Here are possible solutions to your problem. Since you didn't give us some beeps from your PC.

1. Measure the voltage of CMOS-Battery it should be 3V if not change it, P4 is sensitive to it. OR

2. Try other memory first to test if it works fine. OR

3. You needed to refresh the installation of your windows XP to bring back or to repair the files in its system. Boot your WinXP CD and there find the one that refreshes the installation... Don't worry it will not erase your files... It should not try to create a new file-directory.

Posted on Nov 16, 2007

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Dc5100 processor upgrade


Two Netburst based Processor cores on the SAME chipset?

Get outta' here!

When did they come up with that?


The HP Compaq dc5100 Desktop PC uses an Intel 915GV motherboard chipset.

Since we know that the Northbridge chip, of the motherboard chipset; handles the Faster capabilities of a computer;
i.e., Processor, Ram Memory, and HIGH-speed graphics; let's look at the Intel 915GV chipset,

No sir/ma'am.
The Intel 915GV motherboard chipset only handles Single Core processors;
Intel Pentium 4,
Intel Celeron,
Intel Celeron D.
(With a 533MegaHertz Front Side Bus, or an 800MHz FSB)

The Celeron D is NOT a dual core processor,

"The D suffix actually has no official designation, and does not indicate that these models are dual-core. It is used simply to distinguish this line of Celeron from the previous, lower performing Northwood and Willamette series, and also from the mobile series, the Celeron M (which also uses 3xx model numbers) Unlike the Pentium D, the Celeron D is Not a dual core processor."

Yeah, I know. I'm just a 'Ray of Sunshine'.

You know you can pick up a motherboard pretty cheap nowadays, that WILL support the lowly Pentium D, for not much money.

Problem is you will need to replace Ram Memory also.

By the time you get a motherboard chipset that supports dual core Processors (CPU), you are going to be using DDR2 Sdram ram memory, instead of the DDR Sdram ram memory you are using now.

OK, Motherboard, CPU, and Ram Memory.

Oh, the Power Supply. Won't do either.
240 Watt unit, or 300 Watt unit?


Back in the day those Power Supply's were made, Power Supply manufacturer's were 'fudging' the actual maximum rated Wattage.

True Wattage was more like 60 to 70 percent of what was stated.
SOLD more Power Supply's.

240 Watts?
Simply divide by 10. = 24.
For 60 percent, take 60 times 24. = 144 Watts
70 percent? 168 Watts.

300 Watts?
60 percent is 180 Watts.
70 percent is 210 Watts.

I wouldn't try to run a Barbie doll with that low a Wattage, of Power Supply. (Barbie doll? What?)

Need at least a decent 350 Watt power supply, from today's manufacturers.
80 percent constant duty cycle, for most good units; or higher.

Max out the Intel Pentium 4 CPU.

4GB's of 533MHz DDR Sdram ram memory.
(PC4200, or PC4300. Depends on the manufacturer as to how they name it)

By the time you spend that much money, you may as well buy another Motherboard, Processor, Ram Memory, and Power Supply.

Yes, may as well buy a better computer.

I know. Quit trying to cheer you up.

Around here we have Craigslist, and Ebay, for two places.
Could pick up a better computer, for around the same money, as you would pay for all the upgrade parts above.

Which is better? Upgrade the Processor, or upgrade the Ram Memory/
For the better 'Bang for the Buck', upgrade the Ram Memory.

The CPU (Processor) has a built-in cache.
L1 cache, and L2 cache. (Newer CPU's have an L3 cache)

The Cache is a small memory area for the CPU.
It is the FIRST memory area the Processor (CPU) reads.
This is because it operates at the same frequency rate, as the CPU does.
(Frequency rate = 'Speed'. Operates at the same 'Speed')

Next inline is the Ram Memory.
Ram Memory -> typically, operates at half of the Processor's Front Side Bus. (FSB)

This is why upgrading Ram Memory is a good idea.

It isn't so much of getting Ram Memory, that operates at a higher frequency rate ('Speed'), as it is to have MORE ram memory.

PC3200 compared to PC4200.
4GB's of PC3200 is better than 2GB's of PC4200.

(DDR Sdram at 400MHz = PC3200)

Moving on............

Motherboard chipset:

Chip and Chipset are slang terms for I.C.
Integrated Circuit,

The motherboard chipset for your computer, consists of a Northbridge chip, and a Southbridge chip.

{Motherboards that support the Intel Core i technology, (Core i3, Core i5, Core i7, etc), do NOT use this motherboard chipset technology. Neither do some of the AMD CPU's }

As stated previously, the Northbridge chip handles the Faster capabilities of a computer;
Processor (CPU), Ram Memory, and HIGH-speed graphics.

The AGP technology, and the PCI Express technology; ARE high-speed graphics.

Using a graphics card in a PCI slot, or using Integrated Graphics; is NOT high-speed graphics.

The slower capabilities of a computer are handled by the Southbridge chip.
1) PCI Bus / Integrated Graphics.

(Another term for Integrated Graphics, is OnBoard Graphics. A term that seems to have gotten lost.
It explains better; ON the motherBOARD )

2) IDE Bus
3) SATA Bus
4) USB Bus
5) Ethernet
6) Audio (Sound)

Look to see what the Northbridge chip is, as I have shown you; and you'll get a good idea of what Processor (CPU) support is.

For additional questions please post in a Comment.


(I get tired of looking on websites, that just say NO, and do not explain why )

Mar 06, 2013 | HP Compaq dc5100 PC Desktop

1 Answer

Installing new cpu on a emachine

According to the specs I have Serena, the eMachines eTower 633i Desktop PC, uses a TriGem Cognac motherboard.

[TriGem is the manufacturer, Cognac is the model.
Note it is Not the TriGem Cognac+ ]

Specifications. (You can click on the photo to enlarge)

PDF motherboard manual,

Click on - Cognac - in the left side of the list.

Going back to the page;
(Nothing like upside down photo information, and the motherboard is turned 90 degrees to the Right, to how it actually sits in your computer case )

The processor socket is a Socket 370,

Used for Intel Pentium III processors, and intel 'Celey' processors.

(Excuse me......Celeron.
An Intel Pentium III processor has TWICE the L2 cache, that a comparable Intel Celeron has.
The cache for a Processor is a small memory area for the Processor.

It is the First memory the Processor accesses.
The Ram Memory is second, and the Harddrive is third.
More cache for a Processor makes it more faster )

The motherboard chipset is an Intel 810.

The Northbridge chip of the motherboard chipset, is an Intel 82810.
The Southbridge chip is an Intel 82801AA, or an Intel 82801AB.
(Intel ICH, or Intel ICH0 )

Looking at the chart, and reading across, you can see what the Intel 810 motherboard chipset supports;

1) Processors: Intel Celeron, or Intel Pentium II, or Intel Pentium III.

2) Processor Front Side Bus: (FSB) 66MegaHertz, or 100MHz.

3) SDR Sdram ram memory at 100Megahertz.

[Single Data Rate Sdram is often just referred to as Sdram.

Double Data Rate Sdram is also Sdram (DDR Sdram)
Synchronous Dynamic Random Access Memory
So is DDR2 Sdram, and DDR3 Sdram ]

Also referred to as PC100.

So when looking for a CPU you look for;

1) Fits in a Socket 370 processor socket.
Yep. The best is going to be an Intel Pentium III.

2) Has a FSB of 100MHz.


Scroll down.

Pentium III 1100.

Maximum frequency rate ('Speed') is 1.1GHz (1100MHz)
Front Side Bus = 100MHz
Uses a Socket 370 processor socket.
Part Number = RB80526PY005256
sSpec Number = SL5QW

In the top header -
Specifications / Pictures (1) / CPU ID (1) / Comments (1),
click on Pictures (1)

You can click on the photo to enlarge.
256MegaByte of L2 cache. (256MB)

A comparable Celeron would have 128MB of L2 cache.

[ Don't forget to follow Anti-Static Precautions.
Clean the bottom of the Heatsink THOROUGHLY, and the top of the Processor if it needs it. (I always do anyway)

PROPERLY apply fresh, new Thermal Paste.

For additional questions please post in a Comment.


Oct 26, 2012 | E-Machines etower 633is PC Desktop

1 Answer

Hi, The situation is My system INTEL PENTIUM

Do you have any extra things plugged into the usb ports? (external hard drive,Ipod,Flash drive) anything like that can sometimes cause pc's to hang at boot they will try to boot to that device instead of your hard drive

Mar 07, 2011 | Dell Inspiron Desktop / Intel Pentium...

1 Answer

Evo d510 small form factor with 1.79ghz processor what other size of processor can i put in

The Compaq Evo D510's motherboard has a Socket 478 processor socket, and uses an Intel 845G motherboard chipset.

This is information on the Socket 478 processor socket,

As you can see the processor socket has the holes, while the processor has the pins.
478 socket holes.

Only Intel processors that fit into a Socket 478 processor socket, can be used.
Intel Celeron or Pentium 4.

Motherboard Chipset:
The motherboard chipset consists of the Northbridge chip, and the Southbridge chip.
Chip and Chipset are slang terms for I.C.
Integrated Circuit.

The Northbridge chip handles the high-speed processes, while the Southbridge handles the low speed processes of a computer.

The Northbridge handles the Processor, Ram Memory, and any high speed graphics.

(AGP and PCI Express being high-speed graphics.
Any graphics adapter card inserted into a PCI slot, or Integrated Graphics {On-Board), is a slow speed process. Handled by the Southbridge chip)

[CPU stands for Central Processing Unit, or for short - Processor)

This is information about the Intel 845G chipset,

Scroll down on the left until you come to -
Read across.

The Nothrbridge chip is the Intel 82845G.
The Southbridge chip is the Intel ICH4.

As you can read looking across, and at the top of the chart, the 845G will support processors with;

1) Celeron, Celeron D, and Pentium 4 processors.

2) Up to a 533MHz FSB. (533MegaHertz Front Side Bus)

(Pentium 4 processors are better than Celeron.
The Celeron was designed as a budget processor.
'Celey's' generally have half of the L2 cache, that a comparable Pentium 4 has)

I felt listing this information in this manner, would help you can make an informed decision, as to what processors are compatible with the Evo D510 motherboard, instead of just stating, "Get this processor".

I will include a link of a website I found some time ago, that sells Pentium 4's with these parameters, at a very reasonable cost.

May 07, 2010 | Compaq EVO D510 CMT P4 2.5/20GB/256MB...

2 Answers


You can start with the CPU. Here is a list of supported processors for your motherboard.

Then your RAM can be increased. See this page for approved/tested RAM modules:

If you should install 4 1GB modules, you will only show 3.5 if you use a 32-bit operating system.

The third thing you can do is to add or upgrade a video card. This board has an 8X AGP slot. It is compatible with 0.8V or 1.5V cards only. Install one with the greatest amount of memory you can afford. Suggest 512MB or 1GB.

Those are the main improvements you can make to this, or any board for that matter.

Good luck. Thanks for using Fixya.

Apr 01, 2010 | PC Desktops

2 Answers

What socket does it have a 775 socket

You have a 775 socket for the P4 processor in that system. To verify, remove the processor and the socket will look like the one below.

Feb 08, 2010 | Dell Dimension 4600 PC Desktop

1 Answer

Trying to upgrade cpu.

Here's a direct link to the service manual of the NetVista 8303-21A:

On page 13 of this manual:
Microprocessor (varies by model type): Intel® Pentium® 4 processor with 256 KB or 512 KB of internal L2 cache memory and Intel NetBurst™ micro-architecture.

It seems that the computer's motherboard does not support Intel P4 processors with more than 512 KB of internal L2 cache. That's why your P4 2.8GHz/1M/533 Prescott processor did not work.
You will have to either buy another processor with 512 KB L2 cache, or replace your motherboard with one which supports the new processor.

Dec 19, 2009 | IBM NetVista PC Desktop

1 Answer

My pc is giving continuous beep voice.

Probably some hardware defect. You could try removing unnecessary components. Of course, as a minimum, you need the CPU and memory. If you have more memory modules, you could try them one-by-one, if this is possible with the particular type you use. Please note, some motherboards / memory types require to use particular slots for particular configuration, to use modules in pairs, etc (please consult manual).

Mar 20, 2009 | eMachines D3123 Desktop Computer With AMD...

2 Answers

Continuous Beep-Beep-Beep.. When I turn on T3304 E Machine

there is a faulty hardware in your PC. here the beep error code this might help to locate the faulty hardware in your pc, and which help you to isolate the problem.

1 Short beep - System is operating normally.
1 Long beep - Memory refresh circuitry has failed which indicates a problem with the motherboard. Try
reseating the memory DIMM or SIMM modules. Make sure if you have added memory that it is rated at the correct speed for the system.
1 Long 2 Short beeps - The video adapter has failed, or the video memory is having a read/write
failure. Try reseating the video card. If the video card is a PCI video card, try moving it to another slot.
1 Long 3 Short beeps - The system does not detect a monitor. Verify that the monitor cable is properly attached to the video card or the onboard video and to the monitor (if the monitor has a detachable cable). If possible, try another monitor on the system to verify that the video adapter is operating properly.
2 or 3 beeps - There is a problem with the system’s memory. Reseat the memory DIMM or SIMM modules.
4 beeps - This indicates a non-functional timer. This indicates a problem with the motherboard.
5 beeps - This indicates a CPU (Central Processing Unit or processor) failure. Try reseating the processor.
6 beeps - This indicates a keyboard controller failure. Try reseating the keyboard connector.
7 beeps - Another indication of a processor problem. Reseat the processor.
8 beeps - This indicates a video memory read/write failure. Reseat the video card (if any) and memory DIMM or SIMM modules.
9 or 10 beeps - This indicates a ROM (Read-Only Memory) checksum error or shutdown register failure. This indicates a defective BIOS chip(s). Reseat the BIOS chips.
11 beeps - Indicates an error in the cache memory. If the system has a Pentium class processor, reseat the processor. If the system has a cache memory module, try reseating it. These beep codes will vary depending on the system

hope this would help.

Nov 30, 2008 | E-Machines eMachines Desktop PC

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