Is my bro's PSU going?

Jericho.u.k

Jericho.u.k

Jericho.u.k

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Joined
30 Mar 2010
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581
Hi,

My bro's specs before I continue

i7 920@4Ghz, Gigabyte X58A-UD3R, 6gig Patriot DDR3 C9 RAM
Saphire 5970 OC, HD audio, Gigaworks S750 7.1 speakers
2x 500gb SATA2 hard drives, Pioneer Blu-ray
Tagen 1100w psu, Cosmos S, Win 7 64.

Right, My bro's PC has been fine until recently, when he sometimes boots a red light appears on his 5970 and the PC won't post. The card works in my PC fine so we know the card is fine. A bit of googling has found that the red light on the card is power related. The thing is, is that his PC is fine with a 4870x2 which uses more power than a 5970. Do you think its his PSU going? He has tried different PCI-E power cables and also tried using molex using a converter but the 5970 still sometimes has the red light and other times boots fine. The PSU is a few years old now.

Thanks
 
I tried the 5970 in my own pc with my 750w psu and it was fine so we know for sure it isnt that. We also put a 4870x2 and a old 8800 ultra and tried them with his psu and both ran with no problems.

The problem seems to be with his 1100w tagan psu combined with the 5970 only and as i said before after some research it seems that a red light on the 5970 indicates a lack of power problem and that must mean that the 1100w psu is giving early signs of giving up. We unfortunatly dont have another psu to try in my bros pc.

I just wanted to get other opinions to see if others thought the same as i had researched(psu on its way out)
 
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