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Thread ID: 74630 2006-11-29 21:10:00 ATX 12v v1.3 & v2.0? qazwsxokmijn (102) Press F1
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503062 2006-11-29 21:10:00 I already have placed an order for a Raidmax 500W ATX 12v v1.3 PSU. However, I have no idea what the version 1.3 and 2.0 is about??

I have the following components, as shown in my signature, only now my video card is X1800XL or X850XT PE.

Now, will this Raidmax 500W ATX 12v v1.3 support my system?

And what's the difference between v1.3 and v2.0? 		qazwsxokmijn (102)
503063 2006-11-29 23:51:00 1.2. Key Changes for ATX12V Version 2.0 as Compared with
ATX Power Supply
This section briefly summarizes the major changes made to this document that now defines
ATX12V power supply. With the move to 12V voltage regulators for the processor, ATX
guidelines for 5V as main power are no longer provided.
1.2.1. Increased +12 VDC output capability
System components that use 12V are continuing to increase in power. In cases where
expected current requirements is greater than 18A a second 12 V rail should be made
available. ATX12V power supplies should be designed to accommodate these increased
+12 VDC currents.
1.2.2. Minimum Efficiency
Minimum measured efficiency is required to be 70% at full and typical (~50%) load and
60% at light (~20%) load. New recommended guidance has been added to provide direction
for future requirements.
† 2.03 is the current version of the ATX Specification as of this writing. Future references to the ATX
Specification in this document imply version 2.03 or later, as applicable.
ATX12V Power Supply Design Guide
Version 2.0
7
1.2.3. Main Power Connector:
The 2 x 10 main power connector has been replaced by a 2 x 12 connector. This was made to
support 75 watt PCI Express*requirements. Pinout assignments are based on the SSI
recommendation.
With the added 12V, 5V, and 3.3V pins the need for an Aux Power connector is no longer
needed and the guidance for this connector has been removed.
1.2.4. Separate current limit for 12V2 on the 2x2 connector:
The 12V rail on the 2 x 2 power connector should be a separate current limited output to meet
the requirements of UL and EN 60950. 		pctek (84)
503064 2006-11-29 23:59:00 Lol, now that's confusing...can you please summarise that?

And will a 500W ATX 12v v1.3 support my system? 		qazwsxokmijn (102)
503065 2006-11-30 03:21:00 Short answer - yes.

But I'd get a V2.0 anyway.
And you say:

I have
ATi Radeon X800 PRO

My video card is X1800XL or X850XT PE.

Not much of a jump in graphics card...why didn't you just stick with the Pro until later then do a big increase in card specs? 		pctek (84)
503066 2006-11-30 04:49:00 Hehe I'm only a poor 16 year old. :p :(

I'll do a massive upgrade in probably 6 years. I think by then X850XT PE would be like Ti4200 today.

Besides, I don't game too much. It's more of my addiction to computer hardware. 		qazwsxokmijn (102)
503067 2006-11-30 08:58:00 The main things are:
*20pin to 24pin power adapters
*Dual Rails
*4/6 pin PCI-E Connecters

Make sure the PSU you ordered has the 4pin PCI-E connecter to plug into your motherboard to give it more juice.

Also wait till DX10 cards come out. I reckon DX9 cards like the X1XXX series etc will drop as they will be near obsolete. 		trinsic (6945)
503068 2006-11-30 18:46:00 Lol me can't wait that long....the holidays are coming up and you're not expecting me to be stuck with my X800 PRO?

That's another problem, I guess, I'll have to buy another X1K series later on next year. Bet I have more money by then.

...well, at least I hope so!! 		qazwsxokmijn (102)
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