View Full Version : new hard drive not recognized

26-10-2009, 06:37 PM
i have an old asus p5ad2-e premium lga 775 motherboard and a 40gb IDE hard drive recently i have purchased a new 500gb wd caviar black sata drive but when i put it in it just came up with the single 40gb drive and did not display or recognize the 500gb hard drive, what should i do? :badpc:

P.S i dont know what Bios version i have i just thought id mention it i dont know if it matters, if you need more info just ask

26-10-2009, 06:39 PM
You will probably need to format it.


From there you can format it to NTFS and partition till your hearts content.


26-10-2009, 06:41 PM
i am running xp professional sorry for got to mention

26-10-2009, 06:44 PM
That means you won't be able to partition from disk management but you can still format.

If you want to partition use Gparted:)


26-10-2009, 06:49 PM
when i go to disk management it only shows the 40gb drive but there is no sign of my new drive

26-10-2009, 06:59 PM
Ok. Does your BIOS detect the drive?

Can you hear it spinnning? All cables plugged in correctly?

26-10-2009, 07:00 PM
Go into the BIOS, on the main page, under IDE configuration, make sure the SATA is set to Standard IDE.

26-10-2009, 07:09 PM
where in the bios can i see if it is detected i have been through it though and no sign of it anywhere ill check to see if its set to standard ide

26-10-2009, 07:15 PM
it is set to standard ide

26-10-2009, 07:16 PM
If it is not recognised in the BIOS then either your cables are not fitted correctly or the drive is faulty.

Can you hear it spin?

26-10-2009, 07:22 PM
i cant tell my case has 3 big fans in it so i am unable to hear it i will open it up when my dad gets back where in the bios can i check if it is there? i googled it and someone on another thread said update the bios could this be a factor?

26-10-2009, 07:32 PM
It should be on the devices tab...

Sometimes updating the BIOS does the trick, but unless you specifically know that that is the problem then I wouldn't do it.

26-10-2009, 07:40 PM
If it is not recognised in the BIOS then either your cables are not fitted correctly or the drive is faulty. Not always.

I had a 250 GB Drive do the exact same thing last weekend.Didn't show in the BIOS, Device manager, disk management - Nowhere.

To get it going I had to limit the Drive, by dropping in a jumper in the drives 5&6 jumper Pins. As per this picture (http://www.imagef1.net.nz/files/Jumper.jpg) - then it was away and working perfectly. Better Picture (http://www.imagef1.net.nz/files/Second.jpg)

Quite simply the standard transfer rate of the drive was to much for the board to handle, by lowering it to 150 it allowed the drive to function.

26-10-2009, 07:43 PM
so how do i do that sorry i don't know a enough about computers just yet

26-10-2009, 07:54 PM
You will need to get a jumper from someplace, and they simply slide in. Basically they look like This (http://www.pcbuyerbeware.co.uk/jumper.gif). - Bigger Picture (http://img.tomshardware.com/us/2002/09/04/building_your_own_pc/jumper.jpg) some dont have the metal pin visible across the top as shown.

26-10-2009, 07:57 PM
is this easily obtainable from most good pc stores? and how will it affect read/write speeds or any other aspects of this drive? thanks

26-10-2009, 08:02 PM
Any PC repair store should GIVE you one - most motherboards have them, esp older ones, If you know anyone with an old PC thats knackered, grab a jumper off of it.
The drive jumper, simply slows its transfer speed down, you would hardly notice it, IF your Drive is a SATAII, the board may not be capable of reading a faster drive - hence it wont read at all.

The one I had, worked fine on a newer PC/Motherboard, so that ruled out the drive being faulty. Slowed it down, and bingo - then it worked on the other board as well. Didn't notice and speed drop over normal usage.In fact it was actually faster than the old IDE drive I was replacing.

26-10-2009, 08:09 PM
i think i found one in this really old pc i have but it looks a little different, although i did find it inside the plug of an old hdd ill try and post a pick if i can

EDIT: i found it in a IDE drive will it work in a sata drive?

26-10-2009, 08:23 PM
sorry i cant get a clear picture

Speedy Gonzales
26-10-2009, 08:26 PM
SATA hdds dont use jumpers. If its a SATA 2 hdd, and your motherboard is SATA 1, thats why it wont work. Switch it over on the back of the SATA hdd to SATA 150

26-10-2009, 08:27 PM
how do i do that ?

Speedy Gonzales
26-10-2009, 08:29 PM
I just told you. LOOK on the back of the SATA hard drive, youre trying to connect. You'll have to take it out of the case, if you've installed it

26-10-2009, 08:31 PM
so the hdd will have two places to put the cable in at the back and all i have to do is swap it over?

26-10-2009, 08:37 PM
Add the jumper to Pins 5&6 - normally SATA drives dont use jumpers, as there is no master/slave.

BUT you can jumper the drive for different options as per the Western Digital drive chart. (http://www.imagef1.net.nz/files/SATA_jumper_settings.jpg) - it will have one SATA connection, and usually one power connection, some of the older drives had the older molex type as well ( shown in Picture).

Just checked on 4 new WD drives, they all have the pin arrangement to allow jumpers, as per teh pictures, BUT dont have the Molex power, Seagate have a different pin arrangement.

26-10-2009, 08:38 PM
so i should use the jumper on this wd caviar black sata hdd?

26-10-2009, 09:07 PM
Well As I mentioned earlier, I had one customers PC exactly the same thing, it was a 250GB SATA WD drive, wouldn't show.

I then jumpered the drive to 150 on pins 5 & 6 as Shown Here (http://www.imagef1.net.nz/files/P100020.JPG) and it worked fine. That Picture is a brand new , still in the plastic (apart from that end) - WD 160GB HDD, jumpered to 150.

If it works on your PC - good,( it wont harm anything) if not then there is another problem some place.

27-10-2009, 09:21 AM
thanks sooooo much i put in that old jumper i found and it works perfectly soon i will be upgrading the mobo so it should work then thanks again to everyone who contributed it is really appreciated :D

27-10-2009, 09:44 AM
When you get your new motherboard don't forget to take the jumper off again, to make sure you're not limiting the speed