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Testing of ic

What I am going to do when I will test different integrated circuits?

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Be specific what type of IC. you cant just test ICs

Posted on Mar 25, 2008

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How to recognise a pin and pi nnless processor


A pin Processor has metal pins on the bottom of it.

For an example let's use an Intel Pentium 4 processor, that fit in a Socket 478 processor socket.

http://www.cpu-world.com/CPUs/Pentium_4/TYPE-Desktop%20Pentium%204%20Willamette.html

Viewing the link above, observe the green square under the grayish metallic looking square.
The green square is a circuit board.
(Width and length, about the length of your first digit on your thumb)

The grayish metallic square, is a metal shell cover over a Chipset.
Chip and Chipset are slang terms for I.C.
Integrated Circuit,

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

The Integrated Circuit here is the Processor.
The Processor is connected to the green circuit board. (PCB. Printed Circuit Board)

On the bottom of the green circuit board are contact pins. In this case 478 of them. (478 pins)

http://www.cpu-world.com/CPUs/Pentium_4/Intel-Pentium%204%201.7%20GHz%20-%20RK80531PC029G0K%20%28BX80531NK170G%29.html

The tiny metal contact pins fit down into matching socket holes, in the processor socket.

A Socket 478 processor socket,

http://en.wikipedia.org/wiki/Socket_478

(You can click on the photo to the upper right to enlarge it.

The next design to come out, has the Processor with contact pads, (Pinless), and the processor socket has the contact pins.
An LGA 775 processor socket,

http://en.wikipedia.org/wiki/LGA_775


Example of a Pentium Dual Core's bottom side. (LGA 775 processor socket is used),

http://www.cpu-world.com/CPUs/Pentium_Dual-Core/Intel-Pentium%20Dual-Core%20E2220%20HH80557PG0561M%20%28BX80557E2220%20-%20BXC80557E2220%29.html


There you have it.

A 'Pin' processor has metal contact pins on the bottom.

A 'Pinless' processor has metal contact pads.

For additional questions please post in a Comment.

Regards,
joecoolvette

Sep 03, 2011 | Intel Computer Processors

1 Answer

Why does my computer beep when I turn it on?


Here is a list of what beeps may mean:

1 long, 2 short Video adapter error: Bad or improperly seated video card Repeating beeps Memory error: Bad or improperly seated RAM 1 long, 3 short Bad video RAM or video card not present High-frequency beeps Overheated CPU: Check fans Repeating high/low beeps CPU: Improperly seated or defective CPU 1 short DRAM refresh failure 2 short Parity circuit failure in the first 64KB of RAM: Likely a bad RAM IC, or possibly one of the hardware tests has failed

Once you have identified what the beeping means you should contact the type of pc you have and ask what to do.

PCHELPSTER007 from youtube

Jun 25, 2011 | Computer Processors

1 Answer

Outputs of TI analog 500-5016 do not change when inputs to Ti 520 controller are changed. Mother board consists of power supply , TI 520c controller, TI 500-5016 analog output, TI 500-5009 analog input,...


hi, The VERY first thing we MUST check, is the PSU, check this exhaustively, even if possible replace with a know good, as if this isn't 100% A OK, NOTHING else can be..then well ADC 101 says that if there is NO output from the ADC, then this can only be due to 2 reasons, one, it is Inhibited, two, there is NO DATA to be converted/coming out? We need to find out why?

You need to use a 'scope and view the input and output signals along with the lines that control the IC, data flow, Inhibit etc, and see if all the lines are in the correct logic states, work back along either the control lines or signal, and work out why either it is inhibited or lacking signal.

Also check that you micro, isn't inhibiting it either?

Start at the beginning, where the analog signal is presented, and follow a line(s) along through the circuit with the 'scope, checking where they enter the conversion IC, then look at the Output(s) and see whats what, now if all control lines are set OK, and there is NO output then that IC must be faulty... anyway follow the signal along and see why it's not working..

unfortunately there could be many, many conditions that can cause this type of thing, one simply? must work through each block of the circuit, isolating sections if possible and viewing the activity on a 'scope to see where it all goes wrong. checking the voltage and signal levels are correct.

Mar 20, 2011 | Texas Instruments Computer Processors

1 Answer

In winter of 2008 we bought a Gemmy single tree light show. It is called the Incredible Holiday Light Show. It plays music in sync with the lights and has several different light combos. Last year when we...


I had this same problem with mine. After taking the box apart and racking my brain on what it could be, I found this solution:
I have 2 of The Incredible Holiday Light Show Trees from Gemmy and they both had this same problem. After getting rained on they would work for a few minutes and then the lights would dim to nothing but the music still played. I completely disassembled one of them and checked the voltages on all of the ICs first at no load then under full load. At no load everything was fine but under load the input voltages when way down. It turned out being the fuse (F22). It checked fine using continuity and with no load but under load it heats up and reduces the voltage going to the full wave rectifier. The full wave rectifier provides the DC voltage to the whole circuit board. I didn't have a replacement so I bypassed it with a jumper wire until I can get a better fuse to replace it with. Both trees work fine now. OBTW the fuse F22 looks more like a disc capacitor then a fuse but it's marked so you shouldn't have any trouble finding it. Hope this solves your problem as it did mine.

You will have to open the control box and either solder in a jumper wire to bypass or replace this fuse. Hope this helps. I just went out in the garage to test it and this was fixed my issue

Nov 20, 2010 | Computer Processors

1 Answer

Turned off PC one night working fine. Next time try to use, PC wont boot. No video display, no bios, no posts, nothing. Gateway Desktop GT 5464 w/ integrated video, Intel E2140 Processor, Intel 945GC Mobo....


Have you tried booting it from yor CD drive with bootable software?

Any led flashing anywhere in the computer?

If not, we are talking about energy problem. Try fitting the energy cord firmly, try connecting the battery charger in a different power outlet.

Aug 26, 2009 | Intel Pentium Dual Core E2140 / 1.6 GHz...

2 Answers

Restart


Hi,

Chkdsk is a utility designed to check the integrity of the data on a computer's hard disk drive as well as find and fix errors which could corrupt such data.

Running chkdsk on your Windows XP or 2000 system can repair minor Windows problems

There are several different methods that can be used to run chkdsk
start with this one..... chkdsk c: /p
1. Click the Start button then... Run
2. In the Run window's Open box... type in ... cmd
3. Click OK and an MS-DOS-style black screen will appear in a new window
4. Run chkdsk by typing one of the the following commands where the cursor is blinking...
chkdsk c: /p and then press ...ENTER...

This is a short test that will tell you whether or not a longer test is needed. If after the test is done and a message ...One or more errors detected on the volume... appears then proceed to one of the next options...read them both first

Please let us know if that was helpful enough.
Good Luck & Thanks,
Shiv.

Aug 17, 2009 | Intel Pentium 4 630, 3.0 GHz...

1 Answer

Turn off voice command in bias


I'm presuming you mean ASUS BIOS? whem you start your PC press and tap (or maybe hold) the F6 key, it should bring you into your BIOS etup, and normally the switch will be under the integrated tab, either disable the voice command if it is there.. otherwise check all the tabs (ensure that you scroll from top to bottom elseways try to contact the manufacturer and get their direction (OR check your users guide)

May 15, 2009 | ASUS Computer Processors

1 Answer

AMD64 2 CORE 4000+


The processor has nothing to do with it. Definetly your system is infected by a virus or a trojan or spyware.Please download free antivirus like QUICK HEAL and make a thorough scan. If this doesnt solve, the IC [circuits] of your chipset might be overheating.The general symptom for this is the computer freezes and refuses to perform any tasks after few minutes of loading the os.
First please make a scan and also post the picture of your taskmanager showing the different processes running.

Oct 27, 2008 | AMD CPU

2 Answers

Can the sSpec number affect the compatibility with my motherboard or not?


I think it should work. Make sure you update your bios. I dont see why it wouldn work. I have an intel 640 processor and I loved it. I recently got a dual core but it should work in any recent(past 3 years) 775 chipset mobo.

May 23, 2008 | Computer Processors

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