Cable Forum - View Single Post - 6600gt graphics problems (white lines / slow)

patrickp · 27-10-2005, 01:03

Zinglebarb could be right, dalboy. There are several factors to consider here: Dell are well known to use PSUs that, although labelled as low power output, produce whatever power they do very reliably. On the other hand, a lot of generic PSUs may have a label on them that has a high rating but a) this rating is often somewhat inflated and b) whatever power they do produce may not be very reliable. And even a genuinely high output PSU may not be producing enough power on the rails you need. IIRC graphics cards with auxiliary connectors are usually drawing power from the 12 volt rail, which a lot of PSUs fail to supply adequately. There's also the question of what the PSU is being called upon to drive: the Dell machine may be drawing less power than yours does.

It's usually best to go for known good brands like Antec and Enermax; PSUs from manufacturers like these will often outperform generic PSUs with apparently higher ratings.

What make of PSU are you using?

27-10-2005, 01:03	#45
patrickp Inactive Join Date: Jun 2003 Location: in the groove Posts: 897	Re: 6600gt graphics problems (white lines / slow) Zinglebarb could be right, dalboy. There are several factors to consider here: Dell are well known to use PSUs that, although labelled as low power output, produce whatever power they do very reliably. On the other hand, a lot of generic PSUs may have a label on them that has a high rating but a) this rating is often somewhat inflated and b) whatever power they do produce may not be very reliable. And even a genuinely high output PSU may not be producing enough power on the rails you need. IIRC graphics cards with auxiliary connectors are usually drawing power from the 12 volt rail, which a lot of PSUs fail to supply adequately. There's also the question of what the PSU is being called upon to drive: the Dell machine may be drawing less power than yours does. It's usually best to go for known good brands like Antec and Enermax; PSUs from manufacturers like these will often outperform generic PSUs with apparently higher ratings. What make of PSU are you using?