First of all, I thank you very much for allowing me to post an answer.
Since this is a paid service, as much as possible, we try to avoid
giving potential answers in our clarifications. However, in your case,
it's a different thing. There's no way to make an answer without
making an assessment of the problem first and giving potential answers
in the process. Often, some customers just run away with the answer
without giving just remuneration for the effort and attention that was
given to them. So to you Np3r, I'd like to say that I really
appreciate your honesty.
Now, going back to your problem, I asked you if you are sure about the
beep tone you heard. The reason is that earlier, based on your
original question, I suspected that the error is caused by the CMOS.
Why? Because you said that it will not even get close to the BIOS or
safe mode set up. But I have to be sure about that, hence our long
exchange of clarifications. In the past, I have had experiences
wherein I was so sure that "it has to be it" but turned out to be a
different story. I learned from those mistakes.
As a reference, I used this as a guide:
Quinte Can.Compute Inc.
Post Codes - Compaq Error Codes
You can clearly see that your situation is error code 101 -- 1 long
and 2 short beeps means an error in your system ROM checksum
(basically the BIOS). The advised course of action is to replace the
ROM and/or replace the system board. In this situation, you are more
likely to get a new mobo than a new CMOS chip.
You can also see error code 402 which I left out. Although the beep
tones are similar, it is obviously not the problemin your case.
Earlier you also said there is no beep. In all of the errors, it is
worth noting that no beep could mean a bad mobo.
Now, as I said earlier, we can try to find a solution to your problem
but I can't promise you a definite or temporary solution. Bear in mind
that the option we have now is to try to the best we can so here it
1) Go back to the advise I gave you before, regarding the
non-essential connections and what should be retained as a basic
computer unit. Make sure that all connections are secure and all
components are properly in place.
2) Try to push the CMOS chip in it's holder or slot to make sure it is
securely in place.
3) Make sure that the CMOS battery is new and attached properly, and
that the contacts are clean.
4) Restart the system. If you get the same negative results, clear the
CMOS and restart again.
5) Since the problem could also be a corrupted BIOS, it may be
possible for you to get an old or new BIOS for your compaq model. You
can try searching the following links for the appropriate BIOS:
7470 Compaq Motherboard Presario
compaq 7470 bios download
6) Lastly, if all roads lead to buying a new mobo, you can try looking
through the results in this link:
compaq 7470 motherboard buy
In case you want my opinion on this, it may be better for you to go to
a computer shop and get a new generic PC.
By the way, with regards to the sources I have given you, I'm in no
way representing any company I may have mentioned in the answer.
Remember that all products have limitations so if the advise given in
this answer failed, at least we tried and I hope you understand.
compaq "beep codes" "no beep"
+ the two search links given above.
I hope this helps you. Again, thanks for asking and I hope you become
a frequent user of this service.