need to know
| # | Post |
|---|---|
| 1 | what SYMTOMS would be showing you that the small battery i think is the bios power,,,,i have a computer that when you turn it on it tell me that i do not have a starting menu ,,then i get go to auto scan and repair ,,,,which is also no help.... i have tried many different hard drives and always with the same result any help would be much appreciated falco_inlaw - 2021-04-29 21:49:00 |
| 2 | I don't think your problem has anything to do with the small battery in the computer usually called the cmos battery. Have a read of this it may help you to understand it a bit better and rule it out of your current problem... https://www.computerhope.com/jargon/c/cmos.htm muppet_slayer - 2021-04-29 22:41:00 |
| 3 | We need to know EXACTLY what the error message says when it tries to start. Also, do you know what a hard drive is? This is a desktop hard drive... It is extremely unlikely if you were replacing the hard drive each time that they would all be failing which if that was the case the fault would more likely be what you are plugging it into as opposed to being all the 'hard drives' you are trying. In other words the rest of the computer must be at fault rather than all the 'hard drives' you have tried. Also are you aware that a hard drive needs to have an operating system installed on it before it will work? muppet_slayer - 2021-04-29 23:04:00 |
| 4 | Love that last sentence. And from what the OP had said you have to wonder. OP you need to provide the EXACT wording of any error messages and a description of at what stage of startup this happens. And have you really tried multiple hard drives? nice_lady - 2021-04-30 06:43:00 |
| 5 | falco_inlaw wrote: Then you have a collection of computer parts, and I'm not convinced you have connected them correctly and used the BIOS setup to configure the boot drive. If this is a vintage computer, then yes, a flat cmos battery will not remember the CHS bios setting and without that it won't boot. gyrogearloose - 2021-04-30 07:33:00 |
| 6 | We really need the EXACT error messages as what the OP said: falco_inlaw wrote:
Leaves a lot of possibilities. nice_lady - 2021-04-30 07:50:00 |
| 7 | falco_inlaw wrote: lythande1 - 2021-04-30 08:24:00 |
| 8 | muppet_slayer wrote: Don't agree - I've got several secondary hard drives that work fine and don't have an operating system on them. And how would you go about installing an operating system on a new hard drive, if it didn't work until an operating system was installed? Don't reply, I'm just taking the mickey. gyrogearloose - 2021-04-30 08:30:00 |
| 9 | It won't boot without an OS though. tygertung - 2021-04-30 08:57:00 |
| 10 | tygertung wrote: Hoorah. Top marks for knowing what I meant. I thought it was obvious. muppet_slayer - 2021-04-30 16:09:00 |
| 11 | gyrogearloose wrote:
Lol@ that . True too. nice_lady - 2021-04-30 16:12:00 |
| 12 | You usually get a "No operating system on disc" error. tygertung - 2021-04-30 16:40:00 |
| 13 | If you suspect the BIOS battery take it out and measure its voltage compared to what its rated for, assuming you have a volt meter. bitsnpieces2020 - 2021-05-01 18:40:00 |
| 14 | bitsnpieces2020 wrote: Why do you have to take it out, why can't you measure it in circuit? Do you think taking it out will have any ramifications for the stored data? gyrogearloose - 2021-05-01 18:50:00 |
| 15 | It'll reset the bios wouldn't it and the date/time would have to be set again? Edited by muppet_slayer at 7:01 pm, Sat 1 May muppet_slayer - 2021-05-01 19:00:00 |
| 16 | I HAVE ANOTHER QUESTION falco_inlaw - 2021-05-03 15:34:00 |
| 17 | falco_inlaw wrote: yep case is not required... you do need to be cautious when removing components though. PSU shouldn't be a problem but most anything else is static sensitive so anti static mats, wrist strap, precautions etc are needed... king1 - 2021-05-03 15:48:00 |
| 18 | You could have the power supply unit hanging outside the computer box and if you plug it in it will power up as such. It doesn't have to be bolted into the computer to work. What are you trying to achieve? Also in regard to the BIOS battery, it'll most likely be Cr2032. These cost a couple of dollars. Just pull the bloody thing out and replace it with a new one. That'll sort out that possibility. Edited by nice_lady at 3:58 pm, Mon 3 May nice_lady - 2021-05-03 15:57:00 |
| 19 | If the power supply is connected, the bios shouldn't reset. tygertung - 2021-05-03 16:16:00 |
| 20 | tygertung wrote:
And if the power is turned off and you have a flat BIOS battery? nice_lady - 2021-05-03 17:05:00 |
| 21 | nice_lady wrote: Nothing would change, the BIOS battery is already flat and is never recharged from the power supply. gyrogearloose - 2021-05-03 17:16:00 |
| 22 | falco_inlaw wrote: From experience, at this point it's faster and easier to take out the hard drive and connect it to a working computer, because you're uncertain whether any component will work, and the component you want to work is the hard drive. gyrogearloose - 2021-05-03 17:20:00 |
| 23 | gyrogearloose wrote:
Yeah I'm well aware of that. Was just trying to make the poster @#19 think about it. nice_lady - 2021-05-03 18:40:00 |
| 24 | Is not the bios not powered from the power supply when the power supply is plugged in? Surely it is not exclusively powered by the backup battery? tygertung - 2021-05-03 18:59:00 |
| 25 | tygertung wrote: No, the bios battery is not rechargeable and only retains the bios memory. gyrogearloose - 2021-05-03 20:27:00 |
| 26 | gyrogearloose wrote: It's usually easier to take it out to measure because the + & - are obvious and easy to access. If the motherboard is already losing its BIOS settings, it makes no difference. Edited by bitsnpieces2020 at 9:34 pm, Mon 3 May bitsnpieces2020 - 2021-05-03 21:30:00 |
| 27 | bitsnpieces2020 wrote: If the current battery measures around the 2v mark, it "should" be ok mrfxit - 2021-05-04 18:50:00 |
| 28 | falco_inlaw wrote: mrfxit - 2021-05-04 18:54:00 |
| 29 | gyrogearloose wrote: mrfxit - 2021-05-04 19:03:00 |
| 30 | tygertung wrote: mrfxit - 2021-05-04 19:05:00 |
| 31 | falco_inlaw wrote: mrfxit - 2021-05-04 19:06:00 |
| 32 | The Make and Model of the 'Computer', or the Mainboard (and even a photo or two) would really save a lot of guesswork here... cookee_nz - 2021-05-04 19:55:00 |
| 33 | falco_inlaw wrote: falco_inlaw - 2021-05-11 22:26:00 |
| 34 | It doesn't have to be - except for being plugged into the computer off you want it to power the machine up. It's irrelevant whether it's bolted to the chassis or sitting on the table out hanging out side the chassis of the computer. nice_lady - 2021-05-12 06:12:00 |
| 35 | You can also 'start' a power supply unit completely independent of the computer. Just all by itself, sitting on a bench. Ps: in regard to your original question: please post the EXACT error message you getting at start up. The EXACT message. Edited by nice_lady at 6:16 am, Wed 12 May nice_lady - 2021-05-12 06:14:00 |
| 36 | You just need to connect two of the wires; you can make a jumper cable. That way you can use a computer power supply as a high current power supply for other uses. tygertung - 2021-05-12 09:58:00 |
