How to set the jumper for this WD800 drive?

The correct jumper setting depends on **which WD800 model** you have. WD800 drives were available in both **IDE (PATA)** and **SATA** versions.

* **If it's a WD800 IDE/PATA drive** (40-pin ribbon cable):

* **Single drive on the IDE cable:** Set the jumper to **Single** (this is different from Master on many WD drives). ([Western Digital][1])

* **Two drives on the same cable:**

* Set the boot drive to **Master**.

* Set the second drive to **Slave**.

* Or set both to **Cable Select (CS)** if your IDE cable and system support it. ([Western Digital][1])

* **If it's a WD800 SATA drive**:

* Normally **no jumper is required**.

* A jumper is only used for special compatibility features (such as limiting the SATA speed on some legacy systems). ([Western Digital][1])

To tell you the exact pins to use, please upload a clear photo of:

1. The **top label** of the drive (showing the model number, e.g. WD800BB, WD800JB, WD800JD, etc.).

2. The **jumper pins** on the back of the drive.

Once I can see the model number, I'll point out the exact jumper position (Single, Master, Slave, or Cable Select).

[1]: https://support-en.wd.com/app/answers/detail/a_id/14646?utm_source=chatgpt.com "Information and Support for Serial ATA, EIDE Drive Jumper Settings"