NotebookForums.com › Forums › Notebook Manufacturers › Dell Forums › Dell Home (Inspiron, XPS, Studio) › changing the 7900gtx to 1.32v
New Posts  All Forums:Forum Nav:

changing the 7900gtx to 1.32v - Page 5

post #81 of 109
11/14/07 at 5:01pm
Thread Starter 
if it is not unlocked, then why can I change the clocks in ati-tool?
i made no changes to the perf table.

i assumed it was unlocked because when I change the clocks they stick, they don't reset.

also I can just change the clocks in the bios and then flash without unlocking right?
i don't care so much for having an unlocked bios

just as long as when I load the clocks to the card manually it sticks.

weir tho when i ajust to high in ati-tool the I get yellow dots and the card freezez my computer like the clocks are being change.
Reply
Reply
post #82 of 109
11/14/07 at 5:16pm
Yes you can change the clocks to a locked BIOS, and flash to that. However theres a difference between having your clocks stick in Windows, and having them be around next time you restart Windows.


weir tho when i ajust to high in ati-tool the I get yellow dots and the card freezez my computer like the clocks are being change.

What does that mean in english?
Reply
Reply
post #83 of 109
11/14/07 at 6:09pm
Thread Starter 
when i changed my clocks in ati-tool with a locked bios, the clocks jumped back to stock. everytime I change.

with that so-called locked bios I posted.

I can up the clocks and they stay there.

the higher I go, the better 3dmark score I get. so that would indicate that the clocks are changing? no?

when I go to far. the computer locks up. (result of clocks being too high.
Reply
Reply
post #84 of 109
11/14/07 at 6:13pm
ok gotcha. What are your 3DMark05 and 06 scores?
Reply
Reply
post #85 of 109
11/14/07 at 6:16pm
Thread Starter 
5950+@650/730
Reply
Reply
post #86 of 109
11/14/07 at 6:20pm
I just double checked it diefool, that bios you posted is most definitely not unlocked. What you did do, is change the default 3D clocks to 650/730. Regardless of what the slider shows you in any overclocking utility, its still locked up tight.
Reply
Reply
post #87 of 109
11/14/07 at 6:28pm
To unlock the BIOS you must change the "Performance Table 3" entry which on your BIOS you uploaded looks like this...
Code:
22FF000064848A02000000DA
02CA000000FFFF000000FFFF0
00000FFFF00000002FF000000
FFFF000000FFFF000000FFFF0
00000FFFF0000
The CA I have bolded above is what you need to change. To unlock you would change it to C2. Note that all the other entries are already unlocked - meaning you can freely alter the 2D and 3D-throttled clocks without this hack. Its only the full 3D mode you need to unlock.
Reply
Reply
post #88 of 109
11/14/07 at 6:31pm
Thread Starter 
thanks krayziepop

much appreciated
Reply
Reply
post #89 of 109
11/14/07 at 6:47pm
I dont recall now Krayzie but it was a bit weirder than that. I think stock bios has is locked both in 3d and low-3d. I recognize the stock bios has an unlocked low-3d byte but still I recall it being locked. I am not anxious to reboot to prove this however. Anyway, thats one of the issues I was quesitioning in an effort to breakdown the 8700M bios.
Reply
Reply
post #90 of 109
11/14/07 at 6:57pm
Yeah, I can't really test it right now myself either. I am currently testing the NVidia 169.09 drivers, and being a desktop build they do not support the low-3D performance table entry or 3rd VID. I have 2D and 3D working and thats it. I haven't found any mobile drivers worthy of keeping on here just for the purpose of using the powermizer settings and 3rd performance table setting...
Reply
Reply
post #91 of 109
11/19/07 at 7:12pm
Can I run my 7900GS at 1.32v?
Reply
Reply
post #92 of 109
11/19/07 at 10:05pm
Sure, you can set any Nvidia card from 0 to 2.55 V. Its actual effects will differ though.
Reply
Reply
post #93 of 109
11/19/07 at 10:32pm
I was thinking of doing a bit of over-volting myself, but I'm a wuss and haven't researched it enough. I hear some GPU's don't deal well with even a tiny over-volt.
Reply
Reply
post #94 of 109
11/20/07 at 2:47am
I mean 1.32 V inside a laptop is pretty high. If you use your laptop as a desktop though I guess you could handle a slight increase. The 6800U was among the first mobile enthusiast cards (first being 6800) and it was pushing 1.38v stock. That's the highest the voltage has ever been stock for a laptop GPU. The first 6800U's were pretty hot but your card should run cooler than it did at 1.38V. You can actually calculate a raw change in power using a program like NHC or RMClock.
Reply
Reply
post #95 of 109
11/20/07 at 5:46am
So I guess my big question is will over-volting produce any real world performance gain on a 7950GTX? Is there room for experimenting, or will an over-volt potentially kill the GPU?
Reply
Reply
post #96 of 109
11/20/07 at 10:53am
For the 6800U it produced no difference. If you really want to know though, I can push it up to 1.4+ and find out. I'm not really worried about my 7950GTX. Its already starting to bore me.
Reply
Reply
post #97 of 109
11/21/07 at 6:33am
Quote:
Originally Posted by zzpulp View Post
For the 6800U it produced no difference. If you really want to know though, I can push it up to 1.4+ and find out. I'm not really worried about my 7950GTX. Its already starting to bore me.
Hmmm. I would not go as far as to say I was bored with the 7950, considering it is the best...and last...card our laptops will see. At the same time, I would like to see what some over-volting does.
Reply
Reply
post #98 of 109
11/21/07 at 7:25am
Does the Nibitor option under 'Tools' actually over-volt the BIOS? If so, I have flashed a 1.8V @670/830 with negligible results. If not, how would I go about over-volting?
Reply
Reply
post #99 of 109
11/21/07 at 10:44am
Your card would likely be dead if it were actually running at 1.8v.
Reply
Reply
post #100 of 109
11/21/07 at 3:10pm
OK, if Nibitor doesn't actually change the voltage, how do I do it?
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
NotebookForums.com › Forums › Notebook Manufacturers › Dell Forums › Dell Home (Inspiron, XPS, Studio) › changing the 7900gtx to 1.32v