This problem I mentioned in the article “The test procedure is important when repairing” but you still have many questions and questions sent to me . Should I split into a separate article so.

Here, the CPU is not running , the card is still in test re ( Visa card will press NO or 4 sign – – – – ) Notice that the CPU is not running . Report cards will have c0 , FF or not notice anything .

Many of you will be very embarrassing .

I am a little theoretical analysis : Chip NAM basic circuit operation because the source size with the participation of NAM and pulse the reset chip , it almost has chip OK .

A very good story to interest as follows :

One you ( I would like to sign the name ) to check out this step and then not think the override chip NAM NAM dam because that chip is not running or CPU chip NAM should not run error . You claim to have “meter socket and road Data from the North to the CPU chipset has good and alarm lines Data from the chipset North to South faulty chip – alarm that ” the chip to chip NAM NAM for the beating death always fresh . Consequently, the chip after beating South completed , the main word ” full ” to “status” New ” does not attack the source ” < – this bundle with your hands . I as insufficient and not realized the machine “extremely intelligent ” that ‘s how you ” identify ” the road north to data from socket chipset as well and road data from chipset to chipset North Vietnam failed. I ask you why you override chipset NAM says the dam because Your meter is very accurate and because Your experience was NAM is not running chip .

– Ignore the story , back problems . The reason I say NAM basic chip operation because the source is clearly circuits enable the participation of NAM chip , reset circuit is also the participation of NAM chip . If the source has size , can reset the chip has basically run ( still running with no error or later they will be counted .)

– The problem is why the CPU is not running ? See diagram below:

CPU to CPU to run the first ” good contact ” with sockets and socket have good contact with the mainboard. Do not some types of CPU socket pins through the motherboard but the chassis type as foot type chipset .

– To identify good contact with the CPU socket , the only way of looking at the naked eye as the foot contacts the cpu and socket slot is good or not exposed . If the socket 478 may be taken to remove the white piece to the foot of the hygiene . Socket 775 is closely in contact pins ( very susceptible to warping , broken leg ) 

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 To define socket ( type chassis leg ) is ” in contact ” with the main board or not ( foot elevated then God knows ) . Light heavy pressure when we may be exposed CPU and the CPU will run again . Seriously , we have ” interesting ” socket for the lead foot contact again . More seriously , they must always replace the socket ( because the socket can not do leg as chipset ) .

– This step , some sites have introduced a device called a “test socket ” and I believe this device will check if you can see the legs of the socket have good contact with the motherboard or not only. Do not buy on my test but I ‘m sure that you that I mentioned in the above example only this appliance test sockets only. You say ” road test machine data ” What hear something ” lost soul ” .

– In principle , the devices will be supplied separately (can be battery or adapter ) and then through each leg socket will have the internal mass will be compared with an LED light . If the leg does not contact with the internal main and back is extremely bright LED that will not . < – Conclusion , only identified as the legs of the socket are exposed well with the motherboard or not only. Complete without the ” road north to data from the CPU chipset is OK . ” This device I have asked the company to buy the test as “real” and how I would review this device after all .

– Back to articles , good contact with the CPU socket , socket motherboard with good contacts already. Sources for CPU vCore OK – CPU will heat up (which must be false because the CPU load test by measuring the load when authors are also measured in the socket when measured in the coil remains outside the socket ) . false load on the CPU clock , power good signal on the CPU load false , false pulse resets the CPU load ( CPU load is measured by the authors are all < – Please note this place offline , many do not measure this but leave out the chips and then beat the I ) if it was always OK Left is also the chipset North.

– Obviously we can see the chipset North and intermediary standing between the CPU chip and chip NAM NAM that was running , the CPU was running ( warming ) is still the only guy back north this chipset . I have mentioned in the article about the chipset North and personal . However, repeat always , the road leading to circuit chip off the North if it is difficult to get out ( carefully observe some main roads linking the circuit is not expressed here as the fuse to form when the problem will cause vascular rupture protecting North chip ) on both surface and bottom of the mainboard. This road leads to the CPU , RAM , AGP or VGA out and chipse NAM .

– If you assume this not broken Buss Road ( off I do not see is also insufficient , or off the layers in the vascular bundles also hand ) , the problem remaining errors by the chipset North.

– Light is only them, to run strong , steaming north chip will run well . slightly worse , to ” rock ” slightly exposed to the lead leg back , still not removing the chip into the leg closed , it is not only how to ” change the new chip . “

– Speaking always full, if still rather new chips do not run soon broke down , but … pain, but did not run up to this step , the elevation of any player makes running well . Or it was a small step removed any sympathy , hard to check offline try again .

– After the chip Northern OK, the CPU will run, this card at the main test will be running normally c0 , C1 D0 … , D1 … E … if the best speaker may beep beep will sound awkward dancing … If the code is reloaded then calculated to BIOS chip . If any dead code in preparation 26 , the test card to buy a genuine medium . If any or FF c0 hoai it should mean to test buying genuine cards that use.