Solved Unknown ata data lead ??

Microsoft Windows 7 home premium 64-bit
August 29, 2013 at 04:32:06
Specs: Windows 7, Zoostorm 8gb ram
I have added a 2nd optical dvd writer to my old Compac SR5139 desktop, I connectted the power cable but what appears to be the data cable has a small white oblong plug with 4 pins embedded and P8 printed on top, does anyone know how I can connect the ata data cablo to this type of fitting please - Thanks

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✔ Best Answer
August 29, 2013 at 06:28:04
Googling for the P8 power connector will yield many hits. That connector was used on older style AT motherboards to power the CPU.

Floppy drives use a smaller version of that connector which has 4 contacts. If your power supply is less than 10 years old that connector may be for a floppy drive.

message edited by OtheHill



#1
August 29, 2013 at 04:39:02
Hi jrgboy,

Let us know the model of the optical drive.

Also, if possible provide a picture of the cable and optical drive slot.

Thanks & Regards
Manshu S
#iworkfordell


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#2
August 29, 2013 at 04:59:07
I have no idea what you mean by "ATA"? Here's the motherboard used in your Compaq, it only has SATA connectors:

http://h10025.www1.hp.com/ewfrf/wc/...

The back of your DVD drive should look similar to this:

http://www.pcstats.com/articleimage...

Some early SATA drives (both HDD & optical) had a 4-pin molex connector as an optional power connector.

http://litigationsupportguru.com/wp...

message edited by riider


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#3
August 29, 2013 at 05:08:10
Hi Manshu
The drive is a LiteOn IHAS124-04 , the plug I'm referring to is in the desktop, its on the same lead as the ide power cable , I connected the power cable with a ata adaptor, that works OK, I presume this plug is the data connection as there is power to the optical drive but its not recognised - I will try to get a photo of the plug. Thanks.

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#4
August 29, 2013 at 05:15:07
Hi riider,

The connection I am referring to is the one inside the desktop, the optical drive connections are as pictured, I don't know how to connect the data lead to the PC as the only plug I can see is the one that's in relay with the IDE power lead and its this small white one with P8 on , it appears to be a male connection but its far too wide for a sata lead - thanks...

message edited by jrgboy


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#5
August 29, 2013 at 06:01:43
I have take a couple of pix, they are on a flash drive - How do I send them please...??

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#6
August 29, 2013 at 06:28:04
✔ Best Answer
Googling for the P8 power connector will yield many hits. That connector was used on older style AT motherboards to power the CPU.

Floppy drives use a smaller version of that connector which has 4 contacts. If your power supply is less than 10 years old that connector may be for a floppy drive.

message edited by OtheHill


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#7
August 29, 2013 at 06:48:03
Thanks Onthehill, so where do I plug the sata data lead ?, the desktop is allowed 2 optical drives but I can't see where to plug the lead into, any ideas welcome - Thanks..

Update - Traced the sata connection to the motherboard - its connected and working - thanks everyone for your input ...

message edited by jrgboy


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#8
August 29, 2013 at 09:41:36
"the desktop is allowed 2 optical drives". Are you basing that statement on your available 5 1/4" drive bays? The motherboard usually doesn't differentiate optical drives from hard drives. Some first generation SATA motherboards had SOME SATA ports that could not be used by a boot device. Other than that you should be able to connect optical or hard drives to any SATA port.

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