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1lWed Jul-13-05 06:29 PM
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"installing cpu"
Wed Jul-13-05 06:49 PM by 1l

          

i'm trying to find and replace the cpu for my desktop (old cpu was fried). i know a little bit about computer but i've never replaced a cpu before. i was wondering if there are any trick to installing a new cpu. should thing such as compatibility be an issue? or any cpu on the market (intel or amd) should work just fine?
do you guys have any recommendations to buy a new cpu. i'm not looking for top of the line. just something decent. price range $100-$200.
thanks.

  

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Replies to this topic
Subject Author Message Date ID
RE: installing cpu
Jul 13th 2005
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RE: installing cpu
Jul 13th 2005
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RE: installing cpu
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RE: installing cpu
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RE: installing cpu
Jul 14th 2005
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      RE: installing cpu
Jul 14th 2005
6
           You've got yourself
Jul 14th 2005
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                RE: You've got yourself
Jul 14th 2005
8
                     RE: You've got yourself
Jul 15th 2005
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                          RE: You've got yourself
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                               RE: You've got yourself
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                                    RE: You've got yourself
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ShellyWed Jul-13-05 07:00 PM
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#1. "RE: installing cpu"
In response to 1l (Reply # 0)
Wed Jul-13-05 07:01 PM by Shelly

  

          

The architecture of motherboards for AMD or Intel CPU's are very different. You will be limited to whichever brand was originally on the board. There are also differences in the CPU socket used for various CPU's within a brand, different types have different pin counts. Also the speed that a board is mostly limited to the range of CPU speeds that were available at the time it was manufactured.

You can research the board by model and brand to find out what the fastest CPU it can handle will be. Remember that when a CPU fails it can take out other components on the board, so any new CPU may not work, and may also be damaged by the board. A faster CPU may also require a BIOS upgrade.

Shelly

  

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faceacheWed Jul-13-05 07:44 PM
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#2. "RE: installing cpu"
In response to Shelly (Reply # 1)


          

you need a compound between the heatsink & the CPU.

Artic silver is the very best.
Instructions are on it's web site, the url is on the tube.

You also MUST ensute the cpu is spotlessly clean and also the heatsink.

Isopropol Alcohol is one of the best to clean them.

Do NOT forget to connect the cpu fan to the motherboard.
And, if you use the existing one, give it a good clean.

Many is the users who forgot to connect the fan to the mobo

finally, check, re-check & double check that everything is OK before you power up.

Thank you
Ian

  

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cascaWed Jul-13-05 07:52 PM
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#3. "RE: installing cpu"
In response to Shelly (Reply # 1)


  

          

oh yea, buddy, Shelly's dead on. I have yet to find one working part from Frankenstein beyond the case, yet one still holds hope for the mem and cpu.

So, consider a new cpu mobo combo as replacement, pretty cheap these days.

Under Construction

  

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TtechWed Jul-13-05 08:51 PM
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#4. "RE: installing cpu"
In response to 1l (Reply # 0)


  

          

What are the specs on the old CPU that got fried?

Behind every good computer... is a jumble of wires 'n stuff.

  

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fveeThu Jul-14-05 12:32 AM
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#5. "RE: installing cpu"
In response to Ttech (Reply # 4)


          

What model motherboard are you using?

If it is a name brand PC, what model is it?

Some motherboards have two CPU slots. I had a board that could use either of two CPU socket types.

I have had good luck buying old PC parts from E-Bay. The PC I am writing this on has a motherboard and CPU, both bought from E-Bay (at different times).

There are companies that have faster CPU's than your board is supposed to be able to use. Evergreen is one company that sells them:

http://www.evertech.com/index.cfm?fuseaction=category.display&category_id=14&CFID=10679649&CFTOKEN=18648553

But they will not do as much as the increase in CPU speed would make you think. There is more to PC speed than CPU speed.

The best way to go might be a CPU/Motherboard upgrade.

BUT: Do not let a repairman repair your PC unless he is doing it for free. With his laber charge, it will probably be cheaper to buy a new PC as long as you reuse your monitor, keyboard, mouse and speakers.


I'm Freddie-Learning all the Time!!

  

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1lThu Jul-14-05 01:23 PM
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#6. "RE: installing cpu"
In response to fvee (Reply # 5)


          

Thanks for all the replies.
This is actually a built computer(tower) by a friend(i cannot contact him anymore). I don't have any information on the old cpu (I left the cpu somewhere and cannot find it). the motherboard is the EP-4G4A+ and DDR ram.
Thanks

  

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RoperaThu Jul-14-05 02:10 PM
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#7. "You've got yourself"
In response to 1l (Reply # 6)


          

An Epox Intel 465 chipset - 478 socket motherboard.
Any of these will do it:
http://www.directron.com/socket478cpu.html
be aware that the above is not the cheapest vendor so you can beat those prices (but they have all the processors in the same page)

  

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1lThu Jul-14-05 07:09 PM
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#8. "RE: You've got yourself"
In response to Ropera (Reply # 7)


          

Thank You.

  

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1lFri Jul-15-05 03:25 PM
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#9. "RE: You've got yourself"
In response to 1l (Reply # 8)


          

on the page of ordered (http://www.directron.com/p424533.html). it said
"All microprocessors must be run with an appropriate heatsink and fan attached, otherwise the heat generated from the CPU may damage the processor and void warranty"

doesn't all processor has its own fan and heatsink. i wouldn't need to buy anything extra for the cpu if i get this correct?
thanks.

  

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HowardLFri Jul-15-05 04:01 PM
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#10. "RE: You've got yourself"
In response to 1l (Reply # 9)
Fri Jul-15-05 04:04 PM by HowardL

          

You can get them either way, usually the "retail" box has the HSF included. That particular item is "OEM": no HSF included. Some people prefer this because it allows them to use a HSF they already have, or they are planning on overclocking and are going to add increased cooling .

  

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1lFri Jul-15-05 04:18 PM
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#11. "RE: You've got yourself"
In response to HowardL (Reply # 10)


          

i see. thanks.
sorry for asking to much questions. i just want to make sure before i buy.
one more question:
which is a better deal
http://www.directron.com/p424.html
http://www.directron.com/cpuintlp428800.htm

both are 533MH. the difference that i see is a 2.5A vs 2.8A. i'm not sure what that suppose to mean.

  

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HowardLFri Jul-15-05 04:37 PM
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#12. "RE: You've got yourself"
In response to 1l (Reply # 11)
Fri Jul-15-05 04:37 PM by HowardL

          

I don't know that there is a "better deal". One is a faster processor than the other: 2.8 vs 2.4 mghz. It's very unlikely that you could tell the difference between the two in performance in the real world. Just depends on how much you want to spend.

BTW, Newegg has the 2.8 for $164.99 with $.99 shipping.

  

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RoperaFri Jul-15-05 05:23 PM
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#13. "1"
In response to HowardL (Reply # 12)


          

if you buy OEM ask it comes with a heatsink and fan because some of them, called "white box" come with HSF, so you would not have to buy an aftermarket one.

  

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1lMon Jul-25-05 04:29 PM
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#14. "RE: 1"
In response to Ropera (Reply # 13)


          

...hmm, i just post a message on here, but it didn't show up...let me try it again.
okay,
i finally got my cpu. i got it in a box, so HSF is included. above, someobody had mentioned to make sure that there is a compound between the cpu and heatsink. the included heatsink should have it already correct? i see this gray substance on the heatsink, is that the compound? if it is, do i just slap in on? or scrape it off first (maybe the compound is under it)?
thanks.

  

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ShellyMon Jul-25-05 05:30 PM
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#15. "RE: 1"
In response to 1l (Reply # 14)


  

          

The gray stuff is thermal phase change tape. just mount the hearsink correctly positioned on the CPU The heat of the CPU will change ot to a liquid and it will conform to the CPU. Do not remove the heatsink after it is used or you will have to clean the residue off of both the heatsink and the CPU and replace the phase change tape or use thermal compound.

Shelly

  

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1lMon Jul-25-05 06:49 PM
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#16. "RE: 1"
In response to Shelly (Reply # 15)


          

this is not good. i replaced the cpu, everything hooked up, start up the computer and nothing happened. it seemed to have power, since the fan is running, but other than that, no beeps or nothing. i unplugged everything, even the memory and just left the cpu, still nothing comes on nor do i hear any beeps indicating that there is no memory. what could be the problem? i hope it is not the mobo.
thanks.

  

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ShellyMon Jul-25-05 07:15 PM
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#17. "RE: 1"
In response to 1l (Reply # 16)


  

          

The computer will not run without a video card at least one stick of menory and a drive.

Did you plug the CPU fan into the header on the motherboard designated for the CPU fan? Did you clear the BIOS. Did you set the FSB and multiplier correctly for the new CPU? Is the new CPU compatible with the motherboard? Does it need a BIOS flash to use the faster CPU? Is the old memory fast enough for the new CPU?

Shelly

  

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1lMon Jul-25-05 11:13 PM
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#18. "RE: 1"
In response to Shelly (Reply # 17)


          

i can't even get into the bios. nothing shows up on screen. even with video card and memory, nothing appeared on screen to indicate that the computer is doing something.

  

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HoratioMon Jul-25-05 11:23 PM
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#19. "RE: 1"
In response to 1l (Reply # 18)


          

I think Shelly covered pretty well all possibilities in his post above.
check it all out.

If everything checks out, then I would bet you need to update (flash) the BIOS to use the new CPU.

  

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1lTue Jul-26-05 02:52 PM
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#20. "RE: 1"
In response to Shelly (Reply # 17)


          

>The computer will not run without a video card at least one
>stick of menory and a drive.
>
>Did you plug the CPU fan into the header on the motherboard
>designated for the CPU fan? Did you clear the BIOS. Did you
>set the FSB and multiplier correctly for the new CPU? Is the
>new CPU compatible with the motherboard? Does it need a BIOS
>flash to use the faster CPU? Is the old memory fast enough
>for the new CPU?

Thanks for the suggestions Shelly. Below is what I did:

"Did you plug the CPU fan into the header on the motherboard
designated for the CPU fan?"
Yes

"Did you clear the BIOS."
I cleared the bios by removing the battery for about 20-30 minutes.

"Did you set the FSB and multiplier correctly for the new CPU?"
Don't I need to at least get into the bios to do any of these?

"Is the new CPU compatible with the motherboard?"
Yes, the old cpu was a p4, 2.53 GHz. This is a P4 2.4A GHz

"Does it need a BIOS flash to use the faster CPU?"
The floppy drive doesn't even work. I have tried putting a floppy boot disk, no lights from floppy drive comes on.

"Is the old memory fast enough for the new CPU?"
512Mb DDR (should be fast enough)

Also, I noticed if I leave the computer on, it has a little bit of this burnt smell. I wonder if this is normal.
Thanks.





  

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denboy2uWed Jul-27-05 09:04 AM
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#21. "RE: 1"
In response to 1l (Reply # 20)


  

          

hi
I would be looking for a new MB at this time.I have had this happen to me.Its the mb not cpu

Dennis

  

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therubeWed Jul-27-05 03:14 PM
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#22. "RE: 1"
In response to 1l (Reply # 20)


  

          

"burnt smell"

A burnt smell does not sound good.

  

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1lWed Jul-27-05 06:09 PM
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#23. "RE: 1"
In response to therube (Reply # 22)


          

what can you do if you suspect that the ram slot(not the ram itself, the connector) is not working? how would you check such thing. is it fixable if it is?
thanks

  

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micksterWed Jul-27-05 07:20 PM
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#24. "RE: 1"
In response to 1l (Reply # 23)


          

As was already said...the burnt smell is your primary concern at this point. If you know which component was the cause, great! If not, I would remount the heatsink and cpu to the mobo. It may be something else, but in order to prevent any further damage(or possible damge) to the system, I'd reseat them with fresh TIM(AS5) and retry. At that point, see if you can isolate which component is causing the burnt smell if it happens again but do so quickly and shut that thing down.
Check the capacitors for swelling or actual leakage. If you find either, just replace the mobo unless you know how to solder electronic components.

  

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1lThu Aug-04-05 04:02 AM
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#25. "RE: 1"
In response to mickster (Reply # 24)


          

i have a friend looked at it also, and he think it is the motherboard. i want to replace the motherboard. not anything fancy, just enough to do standard computer activities. i want onboard video and audio. this is the page i'm looking at:
http://www.dark-circuit.com/directron/sorteditems/478mba.php
i want to make sure everything is compatible. any of these should be compatible right? i just searched mobo under the type of socket. what else should i look more to make sure compatibility.

currently have:
Processor: Intel 2.4A 533MHz Socket 478 CPU
Ram: corsair cmx512-3200c2 (512MB DDR)
Harddrive: regular ATA instead of the SATA

this one of looking seems to be the cheapest:
http://www.directron.com/u8668d.html (one of the item on the above page)
is this any good?
thanks.




  

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