mobo probs?

Question

i have an emachines t2542. it uses a p4 2.5gh and 478 atx mobo. while on it it shut off on me, turned it on, locked up, turned it on shut off. the next day no power. i replaced the psu. didnt turn on. i ordered a asus p4v8x-mx 478 mobo. replaced it and it powered on (fans and light only) called tech support for asus (useless didnt know crap uhhh ummmm uhhhhh) there are no beeps when i turn it on. on the old mobo there is a hint of whiteness on the opposite side where the cpu was. barely able to see it coming from 4 pins (here most people would say its a fried cpu) but id like to know for sure. i heard p4 turn off b4 overheating(prob what it did when i kept turning it on in the first place) but the power supply did go bad replaced it,replaced mobo anyways, and now did it fry the cpu? would i be able to hear beeps if the cpu didnt work? do all mobo's have the capability of giving beeps or did i get a special one that doesnt? please help thanks alot.

i already payed it forward. The same day i helped this poor lady at work get her sons coputer running my computer that was stable (as much as it could be for an emachines) for 7 years goes out on me. i got her sons to work and thats what im using right now to ask this. thanks for any help

Answer 1

Posting is when the "beeps" are heard. It's a Power On Self Test (POST) system check to make sure CPU, memory and other hardware are present and operating before booting Win XP. Was the computer involved in an electrical storm or power surge? The CPU should be "Zero insertion", which means no pressure is needed to seat the CPU into the socket, if you applied any pressure to the CPU at all, it is toast. There are very small gold pins on the bottom of the CPU. If you forced it into the socket at all you've bent the pins and the CPU is no good. A BB sized drop of thermal grease is needed between the heatsink/fan and the CPU. Use "Arctic Silver" thermal grease, it will help reduce the heat on your CPU. If you have access to another computer that works and has a 478 socket that you can install your CPU into to see if the CPU even works. If you did not "ground" yourself before touching the CPU, you could have fried it with static electricity. To make this a little shorter, I think that the CPU is gone, judging from the description's that you have given here. If you decide to replace the CPU, get it from newegg.com or from tigerdirect.com.

http://www.webopedia.com/TERM/P/power_on_self_test.html

http://www.newegg.com/Product/Product.asp?Item=N82E16819116215

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=509953

Answer 2

It's called posting. The motherboard and cpu will send a post beeps as it boots and does the different start-up checks. If you're not getting any, check the cpu and make sure it's tight in the socket, make sure your heat sink is glued correctly, make sure the stand-offs for the motherboard are being used. If still nothing, time for a new cpu.

Answer 3

DDR3 and DDR2 are the two electrically and bodily incompatible. depart DDR3 for the 2d - DDR2 is the main inexpensive memory obtainable right this moment, 8GB could be had for a hundred pounds, and that makes a device FLY. certainly, the precise DDR2 has been appearing extra beneficial than DDR3 as a results of diminish timings (nicely, up till at last a month or so in the past besides), yet nevertheless, the cost is very diverse. attempt and detect a low-latency, 8GB DDR3 memory kit in case you do not have self assurance me. stable luck with that.