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my computer wont boot past the DELL screen so i did some research and it may be the CMOS battery caused because when i enter the BIOS setup it say something like CMOS battery failure and other CMOS thing crap. Then I decided to replace the CMOS battery but it still not working.i dont know what caused the problem. It also sometimes make this loud fan noise when on the computer

Its a Dell Dimension 4700

BIOS version A09 from 2009

dont tell me to buy a new computer.

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I think the fan noise is normal due to settings in the BIOS. I wonder if the CMOS battery socket is actually non-functional. Do you by any chance have a multi-meter?

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"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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Why would we suggest getting rid of that dinosaur? Could possibly be an issue with the HDD or an issue with the CMOS socket itself

 

 

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buy an new.... oh. nevermind. 

 

throw the old computer out, cry. 

 

 

that's all. 

also, check to make sure your boot drive works and has a proper OS

unless you can tell that the fan isn't working, in which case, it might be overheating at boot, take apart, add new thermal paste, blow out the fan and make sure it works.

We can't Benchmark like we used to, but we have our ways. One trick is to shove more GPUs in your computer. Like the time I needed to NV-Link, because I needed a higher HeavenBench score, so I did an SLI, which is what they called NV-Link back in the day. So, I decided to put two GPUs in my computer, which was the style at the time. Now, to add another GPU to your computer, costs a new PSU. Now in those days PSUs said OCZ on them, "Gimme 750W OCZs for an SLI" you'd say. Now where were we? Oh yeah, the important thing was that I had two GPUs in my rig, which was the style at the time! They didn't have RGB PSUs at the time, because of the war. The only thing you could get was those big green ones. 

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Dells in that era are renowned to having abrupt motherboard failures. My old job as an ITSAS tech, all we used were 2007-2010 era Optiplexes, and we ordered motherboards in bulk for them. To have one last THIS long is a godsend.

Check the CMOS jumper to make sure it's not missing or crossing, or that any foreign objects are crossing the pins. The fan briefly spinning up on power on is normal for those machines.

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