Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Drivers and Overclocking Software › New Bios update for gigabyte HD7950 !
New Posts  All Forums:Forum Nav:

New Bios update for gigabyte HD7950 ! - Page 74

post #731 of 1324
1.056 is enough for 1000/1250 with ASIC of 57.6%, 1.06v is actually enough for 1050/1250 so those with higher ASICs could probably go to 1100 with stock 1.056. I feel there is no need for changing even a bit.
My 9N3 12v sends you greetings. smile.gif
post #732 of 1324
Quote:
Originally Posted by iglig View Post

Ok, I've thoroughly tested all tree of robnitro's BIOS-es, actually 2 of them, F43 BIOS mod doesn't work on rev2 cards, it won't bootup after flashing (4 people tested it on at least 7 cards as I know of). But that doesn't matter as the other two, especially FY1 works great. FX1 works as promised but it is the FY1 that put my jaw to the floor.
Basically with FY1 mod you get unlocked voltage on rev2 boards. You can crank up voltage all the way from 1.056 to 1.25, it is all just based on your card's ASIC quality and choosen speed. GPU-z this time shows correct values and with some tweaking you can get all the sweet spots you couldn't get with F43 or FX-FY1. The trick is though to use Trixx as there was no way to force AB to even read card's voltage. One of the highlights of this mod is state 2 where you set GPU to 900MHz, memmory to whatever pleases you and check this out - voltage to 1.000 volts. I didn't want to go any lower because of high risk for the GPU itself, but even though my card has low ASIC it managed to work in that mode for more than a day before I shut it down. Temperatures with this settings oscillates between 58-61 with fans set to 33%. smile.gif
BIOSes automatic fan curve stays horrible though (F43 doeas a much better job here), but it is not that important to me anyways.
One more great feature is that HDMI finally works! smile.gif

This is one superb mod and trust me, this is quite a replacement for the f43 on rev2 boards, as with this one you have complete control over your card.

robnitro, you should send FY1 mod with complete description to Gigabyte, maybe they will hire you for doing such a fine job. thumb.gif

what was your original bios fx0 ? and your card is a rev 2 with vram heatsink ?


robintro if i understand correctly, with fy1 mod i can change the voltage slider and it will react rather than sitting idle ?
MY_Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4670K Gigabyte z87x-UD3H Gigabyte HD 7950 WF3 Samsung 30nm  
Hard DriveHard DriveCoolingOS
WD 1TB Blue plextor m6 pro  Coolermaster Hyper 212 EVO Windows 8.1 pro 64bit 
MonitorPowerCaseMouse
Samsung BX2035 Seasonic x650 KM3 Coolermaster mastercase pro 5 Logitech MX 518 
Mouse PadAudio
Razer Goliathus Speed Creative Sound Blaster Z 
  hide details  
Reply
MY_Machine
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel 4670K Gigabyte z87x-UD3H Gigabyte HD 7950 WF3 Samsung 30nm  
Hard DriveHard DriveCoolingOS
WD 1TB Blue plextor m6 pro  Coolermaster Hyper 212 EVO Windows 8.1 pro 64bit 
MonitorPowerCaseMouse
Samsung BX2035 Seasonic x650 KM3 Coolermaster mastercase pro 5 Logitech MX 518 
Mouse PadAudio
Razer Goliathus Speed Creative Sound Blaster Z 
  hide details  
Reply
post #733 of 1324
I have tried the modified FX1 and ran some tests with Valley, 3d Mark, OCCT and a session with Far Cry 3 MP. So far, so good, it's a joy to see those 10 deg. cels lower temps. My ASIC value is 64.7%.

It's a shame though that we're stuck with the high memory frequency in a multi monitor setup with these newer cards/bioses.



Great work robnitro thumb.gif
post #734 of 1324
Edit: Please let me know your VRM temps if possible... with f43, the vrms were artificially low I believe, compared to fz,fx,fy or the sapper 950 mhz bios... same load measured with hwinfo/gpu-z and kilawatt wall meter.

I agree Belkov,
Test with OCCT 4.4.0 360x360 is good or 640x480 shaders 5, dx11 error test on, fps limit 0.. the higher res freeze instead of report errors.
Try different levels of powertune and look with hwinfo or hwinfo64 what the clock speed/voltage is... example, to test the second state, I run pt 8 , because the load of occt is so high that it pulls it down to around 995 mhz (my new state 2 @1.088v- much better as the card uses it more often when pt pulls clock down past 995- saving power and heat)

For the higher mhz, you might not be able to do a real full load test because the current load goes too high for the vrm, in that case, pt 12 or so allows me to see it jump states between my max (1100) and 1000 or so.

You will see that with more load, there is much more vdroop... so with normal programs, my 1.18v, shows 1.13 or so v. With occt it goes down to 1.08v! This is one other thing that I mentioned in the past, that the real overclock is one that can run under maximal stress.
Some people are satisfied that it works in the games they play, but not many games fully stress the gpu, even when it says 99 or 100% gpu load. You can tell by looking at hwinfo current IN load, which is the 12v in load in amps. Multiply the current by 12 to get the real wattage used.

(example: 2500k @ 4.5 ghz... weak stress test can do 1.28v, but under intel burnin test, or prime95 avx, I need 1.33v!)
post #735 of 1324
I am using this card for secondary display and mining. I have not tried out any of the benchmarks or games. My card came with ATOMBIOSBK-AMD VER015.026.000.000.000000 and that is I belive the FX1 bios, card also has vram heatsink. Latest GPU-z and hwinfo don't read VRM temps and that was also the case with original BIOS.
post #736 of 1324
Ok - so it's not sure whether this bios i stable for you. For mining it is need little voltage compared with voltage needed for gaming.
post #737 of 1324
Which bios do you guys recommened, i have a rev1 card. Flashed F43 but temps are way too high at idle temps. Should i flash f3? if so can someone link me the f3 bios.

My Asic Quality is 81.1%
post #738 of 1324
F3 will give you even higher temps... F43 is the best for your card. How high are your temps? May be you need to clean your card.
post #739 of 1324
You guys should stop trying all the bios seriously, I've done that too and finally I came back with the one that came stock on the card.

Basically all you need to know is that the bios with 1ghz have a higher voltage and the power limit is high (even tho it's at 0%). Once you put it at 20%, obviously in OCCT or Furmurk (even tho those tests are a joke) it's gonna get hotter than regular bios. And btw I'm not sure you can change voltage on any boost bios. You might change the non boost voltage clocks but that rarely happens.
junkman
(17 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K @ 4600MHz ASUS Z97-A/USB 3.1 HIS R9 280 IceQ X² OC @ 1200/1500MHz HIS R9 280 IceQ X² OC @ 1200/1500MHz 
RAMHard DriveHard DriveHard Drive
G.SKILL F3-2133C9D-16GXH @ 2400MHz 10-12-12-31-1T Crucial MX300 275GB SAMSUNG Spinpoint F3 1TB SAMSUNG Spinpoint F3 1TB 
CoolingCoolingCoolingOS
[CPU] Noctua NH-D14 (NF-P14/NF-P12) [GPU1] Asetek 570LC (Gentle Typhoon AP-30) [GPU2] Asetek 570LC (Gentle Typhoon AP-30) Windows 7 Professional 64-bit 
MonitorMonitorPowerCase
ViewSonic XG2401 Dell UltraSharp U2713H EVGA SuperNOVA 1300 G2 CORSAIR 300R 
Other
Scythe Kaze Q-12 Fan Controller 
  hide details  
Reply
junkman
(17 items)
 
  
CPUMotherboardGraphicsGraphics
Intel Core i7-4770K @ 4600MHz ASUS Z97-A/USB 3.1 HIS R9 280 IceQ X² OC @ 1200/1500MHz HIS R9 280 IceQ X² OC @ 1200/1500MHz 
RAMHard DriveHard DriveHard Drive
G.SKILL F3-2133C9D-16GXH @ 2400MHz 10-12-12-31-1T Crucial MX300 275GB SAMSUNG Spinpoint F3 1TB SAMSUNG Spinpoint F3 1TB 
CoolingCoolingCoolingOS
[CPU] Noctua NH-D14 (NF-P14/NF-P12) [GPU1] Asetek 570LC (Gentle Typhoon AP-30) [GPU2] Asetek 570LC (Gentle Typhoon AP-30) Windows 7 Professional 64-bit 
MonitorMonitorPowerCase
ViewSonic XG2401 Dell UltraSharp U2713H EVGA SuperNOVA 1300 G2 CORSAIR 300R 
Other
Scythe Kaze Q-12 Fan Controller 
  hide details  
Reply
post #740 of 1324
Look back a few posts, I modded fx fy boost bios. Someone with a "locked card" was able to change voltage with it!

I'm using a modded fz1 bios, that uses state 2 at lower voltage - so whenever powertune goes below 998 mhz (like occt), it uses lower voltage- less current- less heat.
New Posts  All Forums:Forum Nav:
  Return Home
Overclock.net › Forums › Graphics Cards › AMD/ATI › ATI Drivers and Overclocking Software › New Bios update for gigabyte HD7950 !