Hi all (again)

As usual i'll start off by giving you helpful souls my pc's specs

Compaq Presario SR1280UK Desktop PC - Product Specifications

Sorry to be a pest ( i cant help but worry sometimes) but i recieved a new PSU in the post today and i just wanted to be 100% certain that i wont destroy my rig with it.

I made a post in the past about this, here: http://www.pchelpforum.com/cases/257...e-new-psu.html

This is the PSU i got in the end (not the one i mentioned in that thread in my first post ^^) Meggydog Computers

Anyway, as i said i got the psu today in the post, and after looking at it there are a few things that bother me, firstly, on the box it says ATX 12V 2.0 (only the ATX part makes sense to me) and it also says Intel Pentium 4 prescott (i plan on upgrading to a Core 2 Duo, it will work right?) bah, here is a picture: http://img226.imageshack.us/img226/8453/intelae2.jpg

Another worry i have is this little red slide switch on the back of the PSU, here is a picture so you can see for yourself:

http://img226.imageshack.us/img226/5471/230hl9.jpg

As you can see, it says 230 on it, but if i slide the switch over to the right, it displays 115:

http://img226.imageshack.us/img226/9361/115kk8.jpg

What is th purpose of this switch?, what does it do and what should i have it on? (115 or 230?). 4 years ago i had a psu that had this switch, and when i turned it it blew my entire pc up...(i know, i should'nt have touched it )

Thank you for the help, i really, REALLY appreciate it.

EDIT------------

I dont spose you guys know of something that would take up a floppy disk drive port would you? (usb hub or something?, anything'll do)

Welcome back Thingamajig.

First off - DO NOT TOUCH THAT SLIDER!!! This slider is set to 230, and it should not be moved. It could damage the computer - LEAVE IT AT 230. (as you have experienced yourself).

Intel P4 was the first processor to require a special extra plug - they're just saying that have that extra plug still...nothing more.
As long as you have 24 pin main connector, you will be able to run core -duo.

Oh dear, LEAVE THE VOLTAGE SWITCH ALONE!

No worries, ive learnt my lession .

And yeah, my PSU has a 24 pin connector .

unfortunately i cant try it out till christmas, (when i hopefully get a new case, still aint had it delivered yet!!!) so i'll most probably be back here on the day asking for more help .

Thank you!.

Thingamajig

The 115/230 equates to the incoming voltage to that psu.
As your british we run on 240 volts in this country, 415 between phases but doesn't matter.
115 volts is what some other countries have, the states being a prime example.