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Serious problem with GTX780 Windforce 3x OC (Rev 2.0) Overclocking

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#1
Evening folks.

I'm having serious issues overclocking this card.

On Heaven 4.0 (1080p 8xAA Ultra, Extreme) it crashes with the slightest of overclocks. I can't even set the memory to 6200Mhz without it crashing the video driver for example.
It was running Crysis 3 for an hour @ 1300Mhz Core and 6600Mhz memory with no issues, but Heaven...its a nogo at anything other than the out of the box OC.

I have no idea if I've fried the cards memory, I accidently pushed the card to 7000Mhz Mem while furmark was running (It popped up on the wrong screen) and it crashed instantly. After this I faffed about with it and attempted to run Heaven 4.0, and it was crashing straight away.

Now the core overclocks dont work either, I've managed to get it to 1201mhz MAX Boost with 1.187v running through it, and it passed a benchmark of Heaven fine, but anything over that is unstable and to be honest, Its crashed at that frequency before.

It seems odd that a 78% ASIC card that is supposed to have Samsung memory can't run at anymore than +90 Core and +0 Memory. The memory overclocking is baffling me - I originally thought it would be my PSU, seeing as my last card (7870) couldn't overclock at all either without dying, and since I had a power surge last year. Problem is, a 200Mhz memory increase can't attribute to much of an increase of power demand...

System specs are as follows.

Core i5 2500K @ 4.6Ghz
8GB Corsair Vengeance LP White 1600Mhz 1.5v
ASUS P8Z68-V-PRO Mobo
GTX 780 Winforce 3x OC (rev 2.0)
OCZ Vector 256GB
1TB Storage Drive
Antec CP-850 (850W Silver) PSU
 

MxPhenom 216

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#2
Evening folks.

I'm having serious issues overclocking this card.

On Heaven 4.0 (1080p 8xAA Ultra, Extreme) it crashes with the slightest of overclocks. I can't even set the memory to 6200Mhz without it crashing the video driver for example.
It was running Crysis 3 for an hour @ 1300Mhz Core and 6600Mhz memory with no issues, but Heaven...its a nogo at anything other than the out of the box OC.

I have no idea if I've fried the cards memory, I accidently pushed the card to 7000Mhz Mem while furmark was running (It popped up on the wrong screen) and it crashed instantly. After this I faffed about with it and attempted to run Heaven 4.0, and it was crashing straight away.

Now the core overclocks dont work either, I've managed to get it to 1201mhz MAX Boost with 1.187v running through it, and it passed a benchmark of Heaven fine, but anything over that is unstable and to be honest, Its crashed at that frequency before.

It seems odd that a 78% ASIC card that is supposed to have Samsung memory can't run at anymore than +90 Core and +0 Memory. The memory overclocking is baffling me - I originally thought it would be my PSU, seeing as my last card (7870) couldn't overclock at all either without dying, and since I had a power surge last year. Problem is, a 200Mhz memory increase can't attribute to much of an increase of power demand...

System specs are as follows.

Core i5 2500K @ 4.6Ghz
8GB Corsair Vengeance LP White 1600Mhz 1.5v
ASUS P8Z68-V-PRO Mobo
GTX 780 Winforce 3x OC (rev 2.0)
OCZ Vector 256GB
1TB Storage Drive
Antec CP-850 (850W Silver) PSU
Dont mess with the memory. It nots going to benefit all that much. concentrate on getting the core clock stable before memory.
 
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System Name The Xinator
Processor i5 2500k @ 4.6Ghz
Motherboard ASUS P8Z68-V-PRO
Cooling Phanteks PH-TC14PE
Memory 8GB Corsair Vengeance White LP 1600Mhz 1.35v
Video Card(s) Gigabyte GTX780 Windforce OC (Rev 2.0)
Storage OCZ Vector 256GB
Display(s) Hazro HZ27WD(V2) 2560x1440
Case Antec 1200 (V1)
Audio Device(s) ASUS Xonar DGX
Power Supply Antec CP-850
Software Windows 7 Pro 64bit
#3
Dont mess with the memory. It nots going to benefit all that much. concentrate on getting the core clock stable before memory.
I am aware of that, its just bugging me is all.

The fact that the core won't remain stable at anything over 954/1006/1097 is really, really bugging me, and I know shouldn't be happening. I haven't heard of ANY GTX780's that are unable to overclock, even the 60% ASIC ones are getting massive OC's.
 

MxPhenom 216

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#4
I am aware of that, its just bugging me is all.

The fact that the core won't remain stable at anything over 954/1006/1097 is really, really bugging me, and I know shouldn't be happening. I haven't heard of ANY GTX780's that are unable to overclock, even the 60% ASIC ones are getting massive OC's.
ASIC doesnt mean much of anything. you just got a shitty overclocking card......
 
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System Name The Xinator
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Memory 8GB Corsair Vengeance White LP 1600Mhz 1.35v
Video Card(s) Gigabyte GTX780 Windforce OC (Rev 2.0)
Storage OCZ Vector 256GB
Display(s) Hazro HZ27WD(V2) 2560x1440
Case Antec 1200 (V1)
Audio Device(s) ASUS Xonar DGX
Power Supply Antec CP-850
Software Windows 7 Pro 64bit
#5
ASIC doesnt mean much of anything. you just got a shitty overclocking card......
I find it hard to beleive after scouring every tech forum that only I have managed to grab a shitty card...out of everybody.
 
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#6
I find it hard to beleive after scouring every tech forum that only I have managed to grab a shitty card...out of everybody.
not really because people who OC are minority of the users.. a very very very small minority at that...
 

erocker

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#7
So, overclocking works just no in Heaven bench?
 
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Case Antec 1200 (V1)
Audio Device(s) ASUS Xonar DGX
Power Supply Antec CP-850
Software Windows 7 Pro 64bit
#8
So, overclocking works just no in Heaven bench?
Furmark seems to be okay. Now I'm getting some random artifacts in Heaven even at stock.

Its been less than 7 days since I purchased the card so I'm RMA'ing it under the UKs Distance Selling laws.

Gonna grab an EVGA one.
 

Aquinus

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#9
Now I'm getting some random artifacts in Heaven even at stock.
...but you didn't before? It's either defective or damaged, so you answered your own problem by RMAing/returning it for a different one. I've always had excellent luck with MSI video cards fwif.
 
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#10

Mussels

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#11
uninstall drivers, reboot system, install drivers, reboot again.


maybe you corrupted your drivers. maybe you got bad drivers that dont like heaven.
 
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Power Supply 45 watts
Mouse serial
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#12
Also try powering down for 15 seconds, with PSU unplugged. Once my Titan "developed" artifacts even when underclocked (!), and a total power off restored everything (including my working overclock.) Freaked me out. This is an occasionally reported thing with nvidia cards for years.