Ok. I'm an idiot and accidentally ordered an 800w PSU instead of 1000w. It just arrived and I'm realizing my mistake. Will 800w run two 8800 ultras in SLI with an intel quad core on an asus striker extreme motherboard? Throw in a harddrive, disk drive and soundcard. Sigh...
I'm an idiot... PSU Question
- Thread starter OldOneEye
- Start date
To run a basic stock SLI setup the typical thought there is about 550w-700w. For any big plans on ocing everything cpu, memory, video cards, you know the answer that most will give. The actual draw on the supply with that setup run stock or with some ocing won't overload an 800w model.
When placing a good load on any supply regulation and stability not wattage is the main thing to look at. To see if the 800w supply you ordered is one of the better makes and model refer to the new sticky seen at http://www.computerforum.com/90118-useful-psu-guides.html
When placing a good load on any supply regulation and stability not wattage is the main thing to look at. To see if the 800w supply you ordered is one of the better makes and model refer to the new sticky seen at http://www.computerforum.com/90118-useful-psu-guides.html
...Here's what it is... An Ultra X3 Modular 800w supply. Here is a link to the official product site. http://ultraproducts.com/product_details.php?cPath=97&pPath=632&productID=638
There's enough on the 12v rails seen there for your build there to cover the needs. Here I run multiple hard drives while single card only and can place a good load on a 550w supply without problems. And that is at the bare minimum for an SLI here. Unfortunately I prefer NVidia chipsets where running two Radeon X2600XTs is out for a Crossfire setup.
Geoff
VIP Member
Did you read what he said? He said he has two 8800 Ultra's and a quad-core processor, so why are you telling him about basic SLI which can run on a 550W PSU?
Geoff
VIP Member
Yes it is, you just need to jump pins 14 and 15 with a paperclip or something similar. Heres a diagram if you're not sure what i'm talking about:
[-0MEGA-];713272 said:
As usual you don't bother to read too well. There was no mention of a basic SLI setup with the 550w supply here. If you read the reply again you will note that I commented on the fact that the 800w Ultra model has enough on the 12v rails there.
For actually performing a good test on any supply you need to place a load on it and use a wattmeter to measure the output there. A multimeter or simple volt meter won't indicate the actual current level.
Geoff
VIP Member
That will help you determine if you have a bad power supply or motherboard. If you jump the pins and it doesnt start up, then you know right away that it's a PSU issue, which would save you time from returning one, then finding out that wasnt the problem.
It's true that you need a load to effectively test if it's runs well, but this way at least gives you an idea if the PSU is running at all or not.
It may be, and it would be fine for a while, but once I get comfortable, I'm planning on switching to liquid cooling and doing some cathode/UV lights and such, and I don't want to have to worry about my PSU straining at the end of it all. Thanks for your advice all.
Adding some UV lights or neon type cords won't place any great power demand. But it's your case and money to spend. No one can tell you how to go about that. As ceewi1 pointed out the 800w model should work well even with water cooling added. You are looking at a heavy supply just with 800w.