• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

New graphics card - Computer shuts down in games.

Matson

Matson

Matson

Soldato
Joined
20 Aug 2009
Posts
3,673
As the topic states i just got my new 7990 card today.. before that i was running 2 x 5870 in crossfire and had no issues.
Booted up the half life 2 lost coast benchmark and it worked fine... Booted up the bioshock inifinite benchmark.. the second it starts the computer just shut off then restarted up. Tryed it again and the exact same thing...Does this sound like a PSU issue? i have an Arctic pro 950 and would have thought 950 watts would have been okay?
 
Im guessing it worked on the lost coast because thats such an old game it doesnt use up much power but soon as i hit the bioshock benchmark on ultra there wasnt enough power and it just shut down?
 
Yep ran the valley benchmark.. 2 seconds in shuts off then restarts. I mean iv never heard of the Arctic pro model and its 4/5 years old now. I know it says 950 watts but its probably giving out no where near that.
Im running 8gb of ram and a 3570k at 4.4 at the moment plus the 7990 now.
 
Last edited:
The side is off...fan is on auto.. idling at about 38-40 degrees. Whats the best program to use that record the temps so when it shuts off i can see what temp it got too?
 
I dont think its heat...According to the afterburner log file it got to 40 degrees and 37 degrees at 60% fan speed at the time of shutdown..I mean literally the second the game loaded it goes off. Its also running at 32 degrees now with 60% fan speed at idle.
Any idea on what PSU would be a good one to go for.. As i'v said iv had this one for 4 or so years now so have no idea really what brads are good and what wattage i would need for this setup.
 
Decided im going to order a new psu, its the only part i haven't updated in 4 years but have no idea which one to go for...... are they all compatable? What wattage am i going to need for this.

My spec is

Gigabyte Z77-D3H Intel Z77 (Socket 1155) DDR3 Motherboard
i5 3570k @ 4.4
Samsung Green 8GB (2x4GB) DDR3 PC3-12800C11 1600MHz Dual Channel
HIS 7990
 
Lol yeah that was just part of a ton of benchmarks i was doing lol.
I was thinking though. I had no issues when i was running 2 x 5870's in crossfire and the power requirements arn't much different to a 7990 are they?
 
Looks like a good PSU..
Im wondering if this would be an issue as someone has said in the review.
"My only flaws are that the cpu cable is a little short if your psu fits at the bottom of the case like mine does."

Mine is at the bottom too. I would guess this wont be an issue but you never know.
 
I was also wondering with the cables... can you just leave the ends that are connected to the components in place and just remove the other ends from the PSU and connect them up to the new PSU? I would imagine they would be the exact same type of cables no?
 
UPDATE - Before i go ahead and order a new PSU i just want to say that my CPU is overclocked to 4.4 at the moment.... I'v had no problems with that at all and that speed along with my 2 x 5870's in crossfire ran fine...

I just took off the overclock and ran the bioshock benchmark again and it worked this time...

Does that definatly mean its the psu then and it it a case of the system needing less power because i took the overclock off so the card didnt crash it?

I just wanted to say my cpu has been at 4.4 for months and lots of 3dmark 13 runs in that time too and never had any issues with my pc shutting down.
 
demon8991 said:
My advice would be to use the cables provided with the Corsair psu and remove everything associated with the old PSU from the case.

Keep us posted as to how you get on.
Click to expand...

Yeah i will i'v gone ahead and ordered the AX860 either way it should be much better and more efficient than the ancient arctic pro that im using now.
 
I guess either way i should find out tomorrow as i ordered the ax860.
I mean i even took my overclock off and my i5 3570k is running at stock now but it still went off after the second valley run. Could it be an efficiency issue... and the PSU not providing anywhere near the 950watts that it says...Im guessing it most likely might be something to do with the 12v rail as like i mentioned iv been running 2 x 5870's in crossfire before this and im pretty sure they use as much watts if not more. Although i have experianced this in the past with my 5870's when i had my i7 920 cpu and my cards in crossfire it would shut off occasionally and reboot up when i had loads off effects on screen.
 
Last edited:
I wanted to show this... This is how the PCI-E connecters are hooked up... Theres one main wire.. But then as you can see in the left socket the wires going out and then straight into the right socket... Does that look okay? Shouldnt it be two completely different connecters? Does that mean its running off one rail for both connecters? I mean these are the two 8 pin connecters, then i have 2 more that are only 6 pin.

 
Last edited:
This is what customer service basically said...

Hi Matson,

Modern PSU's have a single, extremely highly rated 12V rail, these are ideal for high draw graphics cards. However, supplies of your vintage tended to have multiple, lower rated rails which could not be combined to power a single device. The specs of your supply show this to be the case.

For example, a Corsair 600W Gamer Series PSU have a single 50 Amp 12V rail but your supply has four 20 Amp 12V rails.

On the face of things your PSU would win hands down but when you bear in mind that the power requirements for a 7990 are about 375W (which equates to about 32 Amps) you begin to see the problem.

In short, your suspicions are probably correct.
 
What do you mean exactly....Do you mean switch something over on the actual PSU itself? Theres only 2 PCIE wires... That one which has both the 8 pin connecters attatched and another one with both 6 pin connecters and i can only use the 8 pin on this card.
 
Also theres no molex to 8 pin adaptor that came with the card..

heres another picture showing all the PCI-E connecters... The two 8 pin connecters are both on one single wire.. And then the two 6 connecters on 2 seperate wires..

 
Last edited:
Would a 6 pin to 8 pin adapter work?
I looked online and there about £4 one person says using that would only give half the power though so it may not work.. or would it be fine and give the whole 20amps?
That way i could use 2 20amp rails for 40 amps overall?
 
You must log in or register to reply here.
Back
Top Bottom