Overclock.net › Forums › Graphics Cards › AMD/ATI › 7950 Vapor X Voltage Locked?
New Posts  All Forums:Forum Nav:

7950 Vapor X Voltage Locked? - Page 94

post #931 of 1056
Wouldnt any wire be metal? And then it would cause a short? Assuming not, then you think that is a tighter setup than fishing line?
post #932 of 1056
Wire would only touch the heatsinks. There is no voltage on them as they are isolated from the pcb with thermal pads.
Fishing line .. not sure. Plastic + force + heat = bad combo
post #933 of 1056
Interestingly, according to this temperature will not negatively impact some [or most?All?] sorts of fishing line.

But I worry with having a metal bar as it could always tip or something. I just dont want to deal with this thing getting destroyed for such a stupid mistake on my part.

Hopefully this can be sorted out by tonight or tomorrow and I can just order this stuff lol.
post #934 of 1056
Quote:
Originally Posted by Derpinheimer View Post

Interestingly, according to this temperature will not negatively impact some [or most?All?] sorts of fishing line.

But I worry with having a metal bar as it could always tip or something. I just dont want to deal with this thing getting destroyed for such a stupid mistake on my part.

Hopefully this can be sorted out by tonight or tomorrow and I can just order this stuff lol.

This test was done in lower temperatures. You are looking at nearly 100C with the VRMs.
Plastics have a melting point around 150-250C depending on type, but they already get softer at much lower temps.
post #935 of 1056
Oh, yeah, I dont know what I was thinking.

I dont feel comfortable using metal to hold it down so it looks like Ill have to get small heatsinks like these.
http://www.frozencpu.com/products/17727/vid-191/Micro_Thermal_Heatsink_-_65mm_x_65mm_x_12mm_for_Motherboard_MOS.html#blank
http://www.frozencpu.com/products/18189/vid-200/Heatsink_MOSFET_Chipsink_-_9mm_x_9mm_x_12mm_-_Anodized_Blue_.html
post #936 of 1056
Very weird.. since I have an FT-02 [90*] case, I have been running it on its side for a long while now, to prevent issues with the heatpipes and whatnot.

But I figured I'd try again today and see the results..

Letting FC3 idle a while at 1200/1700 got to 66c core, 99c vrm1, 85c vrm2 @ 60% fan speed. [Took out my small VRM fan for this test]

So I turned it over...

and first the temperatures went down about 2 degrees on everything.. then out of the blue the VRM temps skyrocketed and the core temp went up to 72c and then the display driver crashed. The core overheating didnt surprise me -- its the VRMs... why? They have no form of cooling that is effected by orientation...? And if its the air temp, it wouldnt respond to it increasing so quickly. Too bad, as this case looks so much better in the proper orientation xD


I asked sapphire about the heatpipes they use -- it is Groove based. After asking if they would consider using powder based heatsinks for people with 90* motherboards, they said they'd relay it to their cooling engineers.

I also asked about the 8+8 pin vapor-x. Apparently it has a majorly improved cooler versus the old 8+6 pin card.
Edited by Derpinheimer - 3/1/13 at 5:31pm
post #937 of 1056
Quote:
Originally Posted by Derpinheimer View Post

Very weird.. since I have an FT-02 [90*] case, I have been running it on its side for a long while now, to prevent issues with the heatpipes and whatnot.

But I figured I'd try again today and see the results..

Letting FC3 idle a while at 1200/1700 got to 66c core, 99c vrm1, 85c vrm2 @ 60% fan speed. [Took out my small VRM fan for this test]

So I turned it over...

and first the temperatures went down about 2 degrees on everything.. then out of the blue the VRM temps skyrocketed and the core temp went up to 72c and then the display driver crashed. The core overheating didnt surprise me -- its the VRMs... why? They have no form of cooling that is effected by orientation...? And if its the air temp, it wouldnt respond to it increasing so quickly. Too bad, as this case looks so much better in the proper orientation xD


I asked sapphire about the heatpipes they use -- it is Groove based. After asking if they would consider using powder based heatsinks for people with 90* motherboards, they said they'd relay it to their cooling engineers.

I also asked about the 8+8 pin vapor-x. Apparently it has a majorly improved cooler versus the old 8+6 pin card.

I got the 8+8 pin vapor-x and the cooler seems to bemuch better that yours according to temps. Here is my post from the 79xx overclocking thread:

I got my 7950 Sapphire Vapor-X with boost the 8+8 pin power edition a few months ago and until ysterday i just ran with boost bios and 1100 mhz core since i did not need anymore power. Decided to try Sapphire trixx 4.6.0 today and see what this can. Alse been readig alot about some people having bad VRM temps, but my card have been running with very fine temps all along.

Today i tested the first speed with 1.165 mhz core and 1.400 mhz ram (not interested in max ram speed atm, finding core first). VDDC was set to 1,25 in trixx and under load it drops to 1,176.
My maks temps when playing BF3 with all on ultra settings and max Antialising was following.

Fan auto control: max speed it hitted was 46%
gpu temp maks: 59.
VRM 1: 65
VRM 2: 62

I use a Lian Li PC-71 cabi that have 2 fans on aech side of the hd which also gives some ait to my gfx.
I took a screenshot at maks temps today under 100% load in bf3. Link here: https://dl.dropbox.com/u/24980537/BF3%20maks%20setting%201165-1400.jpg

So far i am very pleased with this card. Very silent and should be able to hit 1.200 on core hopefully without probz.
post #938 of 1056
Quote:
Originally Posted by Onkawow View Post

I got the 8+8 pin vapor-x and the cooler seems to bemuch better that yours according to temps. Here is my post from the 79xx overclocking thread:

I got my 7950 Sapphire Vapor-X with boost the 8+8 pin power edition a few months ago and until ysterday i just ran with boost bios and 1100 mhz core since i did not need anymore power. Decided to try Sapphire trixx 4.6.0 today and see what this can. Alse been readig alot about some people having bad VRM temps, but my card have been running with very fine temps all along.

Today i tested the first speed with 1.165 mhz core and 1.400 mhz ram (not interested in max ram speed atm, finding core first). VDDC was set to 1,25 in trixx and under load it drops to 1,176.
My maks temps when playing BF3 with all on ultra settings and max Antialising was following.

Fan auto control: max speed it hitted was 46%
gpu temp maks: 59.
VRM 1: 65
VRM 2: 62

I use a Lian Li PC-71 cabi that have 2 fans on aech side of the hd which also gives some ait to my gfx.
I took a screenshot at maks temps today under 100% load in bf3. Link here: https://dl.dropbox.com/u/24980537/BF3%20maks%20setting%201165-1400.jpg

So far i am very pleased with this card. Very silent and should be able to hit 1.200 on core hopefully without probz.


Please upload your BIOS here as an attachement to share with me.


My Sapphire Vapor X HD7950 does not over well at all and it has locked voltage of 1.25v under load. I have tried MSI afterburner newest beta, Latest official TRIXX and the moded TRIXX and my voltage will not change settings. Under load the voltage is pegged at 1.25v.



Also my ASIC score is 57%. What is your ASIC score on your card?


This card seems plagued with stability problems and comes in many different PCB configurations. Wish mine worked well. I'm looking at returning it for a refund unless I can figure it out. Maybe mine just sucks.

frown.gif
B.K.T.
(24 items)
 
  
CPUMotherboardGraphicsGraphics
De-Lidded direct die mount Intel i7-4790k No IHS ASUS Z97 WS Sapphire HD7950 OC 950mhz Edition Sapphire HD7950 Vapor X 
RAMHard DriveHard DriveHard Drive
GSkill 2400mhz CL9  Samsung 840 caviar black Hitachi 
Hard DriveOptical DriveCoolingCooling
OCZ AGILITY 4 LG 16x BD burner DT Sniper CPU block Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl  
CoolingCoolingCoolingOS
Swiftech pump 655 Alphacool NexXxos UT 60 420mm 3x140mm Bgears 1800 RPM fans in pull on radiator Windows 7 Pro 64bit 
MonitorKeyboardPowerCase
BenQ XL2410T SS 6gv2 Seasonic Platinum 860 Silverstone Raven RV02-BW 
MouseMouseMouse PadAudio
Steel Series sensei Steel Series sensei SS Experience I-2, SS 9HD Audio Technica ATH-AD900 
  hide details  
Reply
B.K.T.
(24 items)
 
  
CPUMotherboardGraphicsGraphics
De-Lidded direct die mount Intel i7-4790k No IHS ASUS Z97 WS Sapphire HD7950 OC 950mhz Edition Sapphire HD7950 Vapor X 
RAMHard DriveHard DriveHard Drive
GSkill 2400mhz CL9  Samsung 840 caviar black Hitachi 
Hard DriveOptical DriveCoolingCooling
OCZ AGILITY 4 LG 16x BD burner DT Sniper CPU block Watercool HEATKILLER® GPU-X³ 79X0 Ni-Bl  
CoolingCoolingCoolingOS
Swiftech pump 655 Alphacool NexXxos UT 60 420mm 3x140mm Bgears 1800 RPM fans in pull on radiator Windows 7 Pro 64bit 
MonitorKeyboardPowerCase
BenQ XL2410T SS 6gv2 Seasonic Platinum 860 Silverstone Raven RV02-BW 
MouseMouseMouse PadAudio
Steel Series sensei Steel Series sensei SS Experience I-2, SS 9HD Audio Technica ATH-AD900 
  hide details  
Reply
post #939 of 1056
Does the 8 + 8 pin version have Elpida IC's? And what would be a better choice: Msi TF3 HD7950 V2 or the Sapphire HD7950 Vapor-x (8+8pin variant)?
post #940 of 1056
Probably Elipida based on what I have read.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › 7950 Vapor X Voltage Locked?