Massive temps from nowhere, O/C not stable Crysis crashing

Born_2_Kill_83 · 5 Jul 2013 at 14:05

mmj_uk said:
The noise will probably be coil whine and the heat will be coming from the cards and the fact that it is now summer rather than winter, at the end of the day your 4.8ghz overclock will only have been stable with a low ambient temperature so stop being stubborn and reduce it.

Nooooo dont make me I cant do it!!!

4.8 is just soooo nice, I might have to have a summer O/C and a winter O/C

james_2k · 5 Jul 2013 at 14:07

Marine-RX179 said:
7970 is fair bit more power-hungry then the Nvidia G104 based GPUs...it is only the extremely higher clocked GTX770 that come closer to the level of power consumption as the stock 7970 (with that said, an overclocked 7970 would be EVEN higher power consumption).

Anyway, why did you move from a GTX690 to CF7970? I mean if strictly comparing single GPUs, I would go with 7950/7970 due to them being much better value comparing to what Nvidia got to offer...however, as far as multi-GPU goes, SLI still remain more reliable and generally smoother than CF, despite the reported frame rate might be lower (i.e. GTX690 vs 7990 or CF7950/7970).

Sorry might have been badly worded, I didn't go from a 690 to 7970s. I just looked up some reviews to get an idea of power usage

Still have the 690

wazza300 · 5 Jul 2013 at 14:22

looked for any whea errors? that will tell you roughly what its crashing on

im at 4.8ghz myself 3770k and no issues at all,ohh and 7970 @1150/1700mhz

Marine-RX179 · 5 Jul 2013 at 14:35

wazza300 said:
looked for any whea errors? that will tell you roughly what its crashing on

im at 4.8ghz myself 3770k and no issues at all,ohh and 7970 @1150/1700mhz

But OP got a pair of 7970

wazza300 · 5 Jul 2013 at 14:43

I would look in event viewer,could be anything that's its crashing on,temps/voltages ect

dt97583 · 5 Jul 2013 at 14:48

wazza300 said:
looked for any whea errors? that will tell you roughly what its crashing on

im at 4.8ghz myself 3770k and no issues at all,ohh and 7970 @1150/1700mhz

davidmt83 said:
Seeing any Event ID 19 / WHEA-Logger errors in your System log?

Snap!

Born_2_Kill_83 · 5 Jul 2013 at 20:13

HX850 installed, I love the smell of a new PSU when it’s warm!!

The TX750W must have been right on the edge peeking out randomly and causing me stability issues as the new PSU seems to have sorted the problem touch wood, the extra power has made things stable again.
My 4.8 O/C temps are still a little high but then again I guess the air blowing the CPU cool is another 10c higher than it was when I last checked things.
I’m now able to give my 7970GHZ a few more volts which might have been the part that got me stable again, am I safe just leaving them set at 1.3v for 1125/1600 to keep things stable?

Thanks to everyone that helped me out, glad it wasn’t my CPU in the end.....now to sell my TX750.

wazza300 · 5 Jul 2013 at 20:16

well done on the psu,

1.3v seems high for those clocks?? maybe 1.2v-1.25v?? less voltage = less load temps

ahh read your first post,idk on that one 1.27-1.28v?

Tonester0011 · 5 Jul 2013 at 20:28

How old was that TX750?
They can power 2x7970s with 1300mv easily, if it was an oldish unit (3+ years) maybe you was asking a bit too much for it

Born_2_Kill_83 · 5 Jul 2013 at 20:51

Tonester0011 said:
How old was that TX750?
They can power 2x7970s with 1300mv easily, if it was an oldish unit (3+ years) maybe you was asking a bit too much for it

Must have been comming up to a good 4 years ago, think I got it when the 920 cpus where released

Born_2_Kill_83 · 5 Jul 2013 at 20:53

Born_2_Kill_83 · 5 Jul 2013 at 20:54

wazza300 said:
well done on the psu,

1.3v seems high for those clocks?? maybe 1.2v-1.25v?? less voltage = less load temps

ahh read your first post,idk on that one 1.27-1.28v?

Ill give then a go at them volts, I thought the higher the core speed ment higher temps not so much the volts on a gpu?

OLDPHART · 6 Jul 2013 at 09:24

Hi, nice to see you got it sorted, as basicly it pointed towards lack of power as it ran ok with one and no doubt you tried both GPU'S seperatly to rule out that one was faulty. Reviews say that 750W is the minimum you need but you where heaverly overclocked CPU plus GPU's.

If l remember right setter saying his i7 930 plus 2x470's overclocked his HX750 was just managing to run them. I have the HX850 and its coming upto 4years old, running a i7 920:4.3ghz + 6970:950/1350 both overclocked see sig and never had any problems plus its still quiet.

When l built this PC l choose the HX850 with running two GPU's in mind a very solid quality PSU.

Born_2_Kill_83 · 6 Jul 2013 at 16:50

Good to hear hopefully it should last me a few years as long as hardware doesn't keep requiring more power.

The problem with PSUs is you don't know when their at the limit, you end up testing every other hardware in your computer to rule it out.

Cheers for your help

wazza300 · 6 Jul 2013 at 16:55

idk,core temps increase usually come from voltage

Marine-RX179 · 6 Jul 2013 at 19:39

Born_2_Kill_83 said:
Ill give then a go at them volts, I thought the higher the core speed ment higher temps not so much the volts on a gpu?

You already know higher volt on the graphic card equal higher temp...why would you think otherwise when it comes to CPU?

OLDPHART · 6 Jul 2013 at 19:56

Marine-RX179 said:
You already know higher volt on the graphic card equal higher temp...why would you think otherwise when it comes to CPU?

Adding more volts to any electric or electronic device produce's more heat, if you can't get rid of it BANG its gone.

oldestgregg · 7 Jul 2013 at 14:57

Tonester0011 said:
How old was that TX750?
They can power 2x7970s with 1300mv easily, if it was an oldish unit (3+ years) maybe you was asking a bit too much for it

Power them maybe but with a heavy oc on the cpu,not easily. Bit too close for my liking tbh. An 850 would be more comfortable.