Probably a stupid question, but...

Ruptga

Lifer
Aug 3, 2006
10,247
207
106
About this time last year he got a new graphics card, a 3850, and ever since then his computer has been flaky, to say the least. We initially thought it was drivers or heat, but couldn't figure it out and gave up.

But, just yesterday put 2+2 together; this is a Gateway with stock everything except the GPU, there's no way that PSU was made for this sort of thing. The specific model number is "bestec atx 300-300-12eb3 rev s2r" and the case says it has two 12v rails at 18a. Sadly I've been away from hardware for so long that I can't remember if this is close to adequate or not.

Some quick googling seems to show that the PSU probably isn't adequte, but it might be, so what's going on?
 

Lunyone

Senior member
Oct 8, 2007
482
0
71
I think the PSU is under-rated for what you want to do. Your only going to have 24A on the combined 12v rails AT THE MOST! I did find a link to the PSU details that I was looking for. It looks like this is an older style PSU (more power on the 3.3v & 5v rails than the 12v rails). I'd changed out the PSU with a quality 350w or 400w PSU. The Antec 380w Earthwatts would be a good selection, or even the Corsair 400cx would also be a good one.
$50 - $20 MIR = $30!!
CORSAIR CMPSU-400CX 400W ATX12V V2.2 80 PLUS Certified Compatible with Core i7 Power Supply - Retail


Link to PSU details:
http://www.affordablesurplus.c...12eb3-power-supply.asp
 
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