Installed GTX 460 & PC just dies:(

justintime2001 · 23 Apr 2011 at 15:25

I have just installed a Gigabyte GTX 460 1GB GDDR5. My system is in my sig and it is all a max of 3/4 months old.

System was running fine until I upgraded the GPU. Every now & then the system just seems to die. The screen goes black and I see the message "no signal" on the monitor. I reboot and eventually all is well again for a while. Any ideas as to why this may be happening? All drivers are from a clean install & up to date etc. Any advice appreciated before I send the card back, thanks.

MissChief · 23 Apr 2011 at 15:31

What PSU do you have? The 500W may not be supplying enough juice. Also, to you have both power connectors connected to the card?

gareth170 · 23 Apr 2011 at 15:41

http://netwin-d.com/PSU-Tagan-TG500-U25.htm

i'd say it's not enough

justintime2001 · 23 Apr 2011 at 15:42

TG500-U25 500W PSUH226H is the PSU. I have both connections to the card too.

Yep, thats the one Gareth

gurusan · 23 Apr 2011 at 15:43

If it happens when gaming then it's most likely the PSU. Yours only has 20A on each of 2 +12V rails.

uv · 23 Apr 2011 at 15:44

The Tagan tg500 isn't that great a psu from what I can see online. What ampages does it deliver? (should say on the side of the unit)

Edit - too late I see, question has already been answered

justintime2001 · 23 Apr 2011 at 15:46

Ouch, more money

and I still have to get a new monitor too. Oh well, better than the card being faulty I guess

justintime2001 · 23 Apr 2011 at 15:52

I cannot get to the unit at the moment but the box says 28A / 28A & 36A, not sure about these things to be honest.

justintime2001 · 23 Apr 2011 at 15:53

AC Input 100-240VAC 15/8A 60/50 Hz
DC Output +3.3V +5V +12V1 +12V2 -5V -12V +5VSB
Max Current 28A 28A 20A 20A 0.5 0.5A 3.0A
36A
Max Combined Power 180W 432W 2.5W 6W 15W
480W 20W
Total Power 500W

justintime2001 · 23 Apr 2011 at 15:58

What do you think to this PSU, would this be enough for the job?

OcUK Battle 750W Dual Rail High Efficiency Modular Power Supply

http://www.overclockers.co.uk/showproduct.php?prodid=CA-037-OP&groupid=701&catid=123&subcat=

xsistor · 23 Apr 2011 at 15:59

That PSU ought to be ennough. But looks like it is not.
Perhaps both the 6pin connectors are drawing power off a single rail.

How long have you had it? If possible try that 460 on someone else's computer with a similar wattage PSU. It could even be that the card is faulty and drawing too much current.

If you're getting a new one you'd probably want something like this:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-044-CS&groupid=701&catid=123&subcat=1084

But if possible first try to make sure it is in fact your PSU. Does it turn off during gaming or just randomly?

justintime2001 · 23 Apr 2011 at 16:00

The PSU is about 3 years old now, bought it from OC for my last build (Q6600) back in 2008.

FallshirmjAEger · 23 Apr 2011 at 16:07

Has the issue occurred while in games or while on desktop/surfing etc or both?

justintime2001 · 23 Apr 2011 at 16:13

I had just run 3D Mark 11 and then started surfing their site for information. The 3D Mark programme had been closed and the only thing running was one explorer window.

gareth170 · 23 Apr 2011 at 16:14

3years, it would have degraded abit

also it's a 432W psu really for the 12v

justintime2001 · 23 Apr 2011 at 16:21

gareth170 said:
3years, it would have degraded abit

also it's a 432W psu really for the 12v

Thanks Gareth, I bought the card from someone who had just received it from Gigabyte after he RMA'd his original, so it should be ok?

Can you suggest a decent replacement PSU, bearing in mind im not a gamer but like to use photoshop quite a bit.

FallshirmjAEger · 23 Apr 2011 at 16:22

justintime2001 said:
I had just run 3D Mark 11 and then started surfing their site for information. The 3D Mark programme had been closed and the only thing running was one explorer window.

It sounds too similar to the problem I had with my 470. That would just cause the display to cut out randomly as if the monitor was on standby (Not while in games, only when on desktop/surfing web etc). The system would keep running but I would get no picture back until I rebooted.

I would test the card in another system if possible.

mysticsniper · 23 Apr 2011 at 16:24

Remeber this is your power supply, when it blows it will usually take your whole system with it.

I would never look at any cheapo products either. My suggestion would be one of the Corsair models, I have used them for years and have never had any issues.

justintime2001 · 23 Apr 2011 at 16:30

FallshirmjAEger said:
It sounds too similar to the problem I had with my 470. That would just cause the display to cut out randomly as if the monitor was on standby (Not while in games, only when on desktop/surfing web etc). The system would keep running but I would get no picture back until I rebooted.

I would test the card in another system if possible.

What was the outcome with your 470?

gareth170 · 23 Apr 2011 at 16:32

justintime2001 said:
Thanks Gareth, I bought the card from someone who had just received it from Gigabyte after he RMA'd his original, so it should be ok?

Can you suggest a decent replacement PSU, bearing in mind im not a gamer but like to use photoshop quite a bit.

http://www.overclockers.co.uk/showproduct.php?prodid=CA-044-CS&groupid=701&catid=123&subcat=1084

or

http://www.overclockers.co.uk/showproduct.php?prodid=CA-037-CS&groupid=701&catid=123&subcat=1084

but try the card in another system first