Connecting two PATA (id) Hard disk together?

[vishu_ka]

I have got two ID Hard disk- one is 80gb (Seagate) and 2nd is 160gb (WD blue). Both have got OS installed (80gb- XP, 160gb- Win7) and when i connected them together 80gb one works fine and 160gb is not detected! I dont how to make on master and other slave by changing pins so help to so that they can work together if possible with DVD rom!
Pins photo of both-
80

160

 

[herrwizo]

The jumper in the middle of each drive is the thing you use to set the drive into "master", "slave" or "cable select mode". Usually it is best to specifically set your primary OS drive to "master" and the other one to "slave". How? The possible positions of the jumper are usually drawn on each disk (front label where you can see the capacity and all other relevant data). If not, sometimes they are also marked near the jumper, but I cannot see this in your case. Anyway, if everything else fails, you can try googling exact drive model on the internet to find out jumper positions. Use tweezers (or fingernails) to set one drive to master and the other one to slave.

EDIT: This "master + slave" combination must be correctly set for each set of 2 drives on a single IDE cable. If you have only 1 drive on a cable, it can usually be left on any setting, although I have seen some drives that like being "master" regardless of sitting alone on one physical cable. Therefore, if you plan on using a DVD ROM (also IDE) on a separate cable, you can either leave it on its own cable and set it to master, or connect it together with one of the hard drives (master) and set the DVD ROM to slave.

 

[vishu_ka]

here is what given on labels of both-

80: http://i.imgur.com/yScsObu.jpg

160: (printed was not visible so typed myself)
http://i.imgur.com/EuXebTq.jpg

what i want is 80gb one become Primary and if possible i should get option to choose between OS of both (if not possible atleast booting in from 80gb should show 160gb drives also)

 

[herrwizo]

Your 80 GB drive is already set as master (two most left pins vertically). But your 160 GB drive is set to... Well, nothing specific at the moment. If you take a look at the drawing, you need to move the jumper to the second vertical row on the right. Currently it is set to the second vertical row on the left. Just move the jumper, and you are all set. You can boot from both drives if you set so in BIOS, they just need to be master and slave.

 

[vishu_ka]

ok bro first task is done.... moved 160gb pin to 4th no from left and in IDE config already found 80 as master and 160 as slave! when booted found 160 as new hardware and displayed its drives in MY computer! thnx for that
now it entered through XP of 80 but what i want is it should show OS option of both hard disk at time of booting, how do i set that in BIOS or any place else???

 

[herrwizo]

It all depends on your motherboard's bios. On most modern motherboards you can press F12 key when you see bios initializing, and you will be able to select boot drive. You can also set default boot drive in bios (boot priority option).

The other solution is to modify the boot.ini file on your primary boot disk so to display all available os options to boot. You can do that by booting the xp installation cd and going to recovery console.

More info and tutorial:

http://support.microsoft.com/kb/291980

I hope that helps and that you are now a happy man 😉