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Thread ID: 81077 2007-07-15 04:20:00 Installing new PSU. Mantis (3703) Press F1
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569212 2007-07-15 04:20:00 I recently purchased a new Enermax 480w PSU to replace my current generic 300w psu that is currently in my desktop.

I'm about to take out my old one and install the new one... Is there any thing I need to be aware of or look out before I start? From what I understand and have read I simply need to unplug all the connectors from the motherboard, graphics card, hdd's, dvd drives and floppy, then remove the psu. Install new one then reconnect all power cables...

Are there any other funny connections that I need to look out for? Or does anyone else have any tips/tricks they could pass on?

Cheers for any help.

M.
Mantis (3703)
569213 2007-07-15 04:53:00 Sounds about right, assuming the system was going ok prior & the PSU you are replacing hadn't gone phutt.
A clean out inside the box wouldn't hurt.
Make sure the cables are clear of & not obstructing fans.
rocky138 (10636)
569214 2007-07-15 05:02:00 If the PSU and mobo have the 12v ATX connector, dont forget to put it back on (the mobo adapter) from the PSU.

Or it wont boot. A lot of people forget this connector, and wonder why the system is dead.
Speedy Gonzales (78)
569215 2007-07-15 05:13:00 If the PSU and mobo have the 12v ATX connector, dont forget to put it back on (the mobo adapter) from the PSU.

Or it wont boot. A lot of people forget this connector, and wonder why the system is dead.

So if the old psu and mobo have a 12v atx adaptor, will this be obvious?

(And is this adaptor is the 20 to 24 pin adaptor you are talking about?)

Cheers.

M.
Mantis (3703)
569216 2007-07-15 05:16:00 So if the old psu and mobo have a 12v atx adaptor, will this be obvious?

(And is this adaptor is the 20 to 24 pin adaptor you are talking about?)

Cheers.

M.

Nope its usually 4 pin (2x2), like a square, by itself.

Its needed to give the CPU a bit more juice. So the connector maybe near the CPU somewhere.
Speedy Gonzales (78)
569217 2007-07-15 06:21:00 Nope its usually 4 pin (2x2), like a square, by itself .

Its needed to give the CPU a bit more juice . So the connector maybe near the CPU somewhere .

Awesome, thanks for the info Speedy!

Reading through the User Manual of my motherboard (Socket A Soltek) it looks like there is only one main 20 pin power connector to the mobo . The cpu is an athlon xp model . . . I'm guessing that the cpu doesn;t have the extra adaptor . . . .

Was it mainly the intel cpu's that had the extra adpator?

Thanks again .

M .
Mantis (3703)
569218 2007-07-15 06:58:00 Was it mainly the intel cpu's that had the extra adpator?

Thanks again.

M.

Mostly Intel CPU's yup.

Not too sure about previous AMD (just checked the ASUS K8N, thats in the cupboard, its got the adaptor).

Or more recent AMD CPU's.

I've never had one.

Altho more recent PSU's do have the connector, for mobos that have it.
Speedy Gonzales (78)
569219 2007-07-15 07:27:00 Not many socket A boards had the extra 12v connector they just didn't need the power. Its a lot more common now on socket 939 and AM2 but by no means guaranteed. Pete O'Neil (6584)
569220 2007-07-15 07:59:00 I've just opened the case and it looks like there is no adaptor... Thanks again for the heads up though...

One last thing... Does it matter what molex connector gets connected to which ide drive (secondary & master etc...) Or can any molex connector connect to and power any drive that is installed?

Thanks again.

M.
Mantis (3703)
569221 2007-07-15 08:03:00 Just be careful. PSUs can be pretty unpredictable bastards of a device. I once bought a new PSU, installed it, turned it on....kapoof. Don't know what I did, but it did blew, qazwsxokmijn (102)
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