6600 (Non-GT) Volt Mods

[seaman]

No I didn't use nTimings yet.Need little time to study datasheet and settings.
From what zakelwe says,I came to the conclusion that my memory is crap -at least compared to others.
Not really crap if it can do 700 instead of 550 but is not enogh for this card.
From what I know,timmings for 6600nonGT are the fastest in the 6serie.
I would not go for slower timings,because is not possible to overclock more anyway.I would go for faster timings to improve performance at same speed clock.But this need to be studyed.
By the way -did you do the mem voltmod? What is your max clock artifact free?And tell me if you use any heatsinks.

[seaman]

zakelwe,your GPU clock is impresive.do you get hangs-up in games(FarCry,HL2).
It looks to me that GPU delivers to much data that the memory could not handle.
Yes with 2.8ns memory the story would be different.
what means-hynix doesn't grade the chips ?they are all the same,doesn't mather if they are 4,3.6,3.3,3 or 2.8?
chips up to 3.6 are rated 2.5V and the others up to 2.8 are rated 2.8V.is difference

[seaman]

I tested all the timings of the geforce 6 serie cards.Actually I found that there are only 4 sets of timings:
6200/6600 - 04090F0D;05010405;20230204
6600GT/6800LE - 060F1B15;09010509;20250407 and 6800GT
6800NU - 060A1311;05010407;00240306
6800Ultra - 0813211B;0A01060A;20270509
These are settings reported by NiBiTor.Ilya what you reported as being you card's setting is just a preset of nTimings written in the ini file(probably used before).
After benchmarking with all these settings in 3DMark 2005,I got a difference in performance of max 0.5%(best for 6800NU).
Something else:looking in the data sheet for Hynix 3.6ns memory and at the timings for 6600 cards,I observed that they are way over specification -I mean the timmings are faster.
Is to be said that slower memory allows faster timings and faster memory allow slower timings.
Now,again,I don't know if is worth giving so much importance to the timings.
I don't care that is posible to rise mem clock if performance increase is almost 0.
Here is data sheet for memory

[Ackbar]

I tested all the timings of the geforce 6 serie cards.Actually I found that there are only 4 sets of timings:
6200/6600 - 04090F0D;05010405;20230204
6600GT/6800LE - 060F1B15;09010509;20250407 and 6800GT
6800NU - 060A1311;05010407;00240306
6800Ultra - 0813211B;0A01060A;20270509
These are settings reported by NiBiTor.Ilya what you reported as being you card's setting is just a preset of nTimings written in the ini file(probably used before).
After benchmarking with all these settings in 3DMark 2005,I got a difference in performance of max 0.5%(best for 6800NU).
Something else:looking in the data sheet for Hynix 3.6ns memory and at the timings for 6600 cards,I observed that they are way over specification -I mean the timmings are faster.
Is to be said that slower memory allows faster timings and faster memory allow slower timings.
Now,again,I don't know if is worth giving so much importance to the timings.
I don't care that is posible to rise mem clock if performance increase is almost 0.
Here is data sheet for memory

Interesting! Have you decoded what the timings mean and/or how to tighten/loosen the timings? THe 6200 with unlocked pipes or 6600 overclocked is extremely bandwidth limited. If you look at the orb at look at the numbers for people with 600+ MHz GPU, you'll notice that the numbers aren't so dramatic since the memory speeds are what are driving the scores/performance. Something to look into...

[Cybercat]

Well, I've got my card ready for some serious overclocking on air.

http://img.photobucket.com/albums/v7...r/101_0189.jpg
http://img.photobucket.com/albums/v7...r/101_0190.jpg

The VDDR mod is well explained in the beginning of this thread, but how do I do a Vcore mod? All the ones explained so far are for the AGP version.

[Cybercat]

Alright, I performed a memory volt mod, and I got from 710MHz to 730MHz so far. Not much improvement. The odd thing is, I keep turning the 10k VR but it doesn't improve it any. I used the back leg, not the front leg, so I know I have to turn it counter-clockwise. Also, I go to check the voltage on it, and instead of ~2.5v or whatever that memory typically runs at, it reads 1.27. I used this picture for reference:

http://www.xtremesystems.org/forums/...chmentid=25218

After all my turning I'm now at 1.3v according to my multimeter (which has to be off). Only a 2% gain.

[seaman]

You have to ask Conrad about your voltmod.He opened this thread about PCI-E cards and we continued with the AGP version.Except for the first page,everything is about AGP card.No user of PCI-E card did replay later.

[wedfighter]

Hello guys,this is my 1st post at this thread..
Can someone help me, how to vmem mod to my vga (Leadtek 6600 AGP) ?
so far i've done a vgpu mod by penciling the Resistor 510, so it's time to vmem mod..
now running @480/660

[seaman]

Hello guys,this is my 1st post at this thread..
Can someone help me, how to vmem mod to my vga (Leadtek 6600 AGP) ?
so far i've done a vgpu mod by penciling the Resistor 510, so it's time to vmem mod..
now running @480/660

Can not help you with vmem mod since for every brand with different layout,is a different mod.
But I can give you an advice:flash Sparkle or ASus bios on your card and you will be able to overclock much,much more.
For some reasons Leadtek bios doesn't allow good overclocking,and many users flashed other bioses on their cards.
You can visithttp://www.mvktech.net/component/opt...tpage/Itemid,1
for a lot of news.

[seaman]

And I need some details about your GPU pencil volt mod.
Please indicate a link or post a picture of the rezistor you shaded.

[PuZo]

Hello guys !
Glad to join the forum !

I am the owner of an Inno3D ( ) Geforce 6600 AGP 8x (300Mhz core, 530Mhz mems - Hynix 3.3ns).
I've hurd this card has an under-volted memory. The max frequency I could reach (without artifacts) was 550Mhz . I get artifacts even at 570. The mems are 3.3ns, that means they could do 600 easy... As I can see in this topic, other guys can go up to 700+ without any problems.
What can I do about this ?
I've tried different BIOSes (i.e. Sparkle, Daytona, Leadtek). The one from Sparkle allowed me to reach 470Mhz for the core (stable), 50Mhz more than unsing my original Inno3D BIOS.
I even tried a 6600GT BIOS (from Inno) which I modified using NiBiTor (I changed the frequencyes and the timings) but the image was all scrambled.
It seems to me that I can't modify the voltage for the mems simply using a different BIOS. Damn !
Can anyone send me a detailed vmod (I'm not good at electronics) for the core and mems (I'm more interested in the one for the mems) ?
10x

[seaman]

No,is not that easy to reach 700 for memory.I can do only about 680 without voltmod and no more than 705 with voltmod -artifact free.
You can achieve higher clock by voltmod,better cooling and more relaxed timings edited in NiBiTor(though this last version is a bit confusing).
Don't expect miracles in any of the solution.
As for the voltmod,every brand has a different volt mod depending on the regulator chip.I'm afraid we can not help you,but you need to keep searching over the internet.
Sparkle is such a good overclocker because it has 1.4V for core and 2.6V for memory wich is higher than usual 1.3 - 2.5.Also bios is not so restrictive like others(eg.Leadtek).
GT bios does not work with vanilla 6600 cards.I tested long time ago.And memory voltage is not controled by the bios.
In the last days it was a big debate in MVKTech forums,wheter some modified bioses for 6600 cards will rise voltage.Bioses were modded by some thai guys,but I can tell you that none of them rised vcore on my card.

[over@locker886]

How to vmod this card? http://www.tar.hu/szilchi/back.jpg

[seaman]

How to vmod this card? http://www.tar.hu/szilchi/back.jpg

Hey guys:
If you read this thread,you understand we are not those hardcore voltmoders so you must understand we can not help you.We were talking mostly about Sparkle 6600 voltmod,wich finally came from a russian site.
In this forum and other forums you will find experienced voltmoders that might help you.
I can give advice from my experience with 6600 cards but I can't voltmod a card because I lack electronics knowledges.

[over@locker886]

All right. I understand.

Eagle 6600 have different Pcb as inno3d,msi,leadhtek or sparkle. This is big problem for me.

[PuZo]

What can I do to reach 650MHz or at least 600MHz memory frequency without artifacts ?

And... can anyone explain to me the timings in NiBiTor ? I'd like to try some more relaxed timings...

[wedfighter]

Can not help you with vmem mod since for every brand with different layout,is a different mod.
But I can give you an advice:flash Sparkle or ASus bios on your card and you will be able to overclock much,much more.
For some reasons Leadtek bios doesn't allow good overclocking,and many users flashed other bioses on their cards.
You can visithttp://www.mvktech.net/component/opt...tpage/Itemid,1
for a lot of news.

Anyone tried this bios mod?did they succed?
R510 is tiny resistor below IC chip ISL6549CB (gpu volt regulator) at the back of the board..below the molex connector
but after penciling, i can only raise the voltage from 1.356 to 1.422 n it cant do much to the gpu clock..(only raises from 450-478)
i wanna try higher, something like 500-550 but afaik it must be done with soldering a VR10K on that R510..
So, can the BIOS mod raises a vgpu n vmem?

[zakelwe]

over@locker886 .... need a better picture I am afraid.

Seaman is right, the Sparkle BIOS is very good, I used the PNY 6200 BIOS on my 6600 Sparkle and top MHz was about 450 ..put Sparkle 6600 back on and 610 not topped out. This latest Sparkle does 610/740 before vmods. I did the vmods last night ( as worked out by me before the Russians weeks ago..cough ) and will test tonight.

Original volts are

GPU

1.39v in 2d Windows, 1.45v in 3D

Memory

2.55v in 2d/3d

Maximum I use is 1.75v in 3d for gpu and 2.95v-3.05v for memory.

Normally start off at 1.54v and 2.75v though.

Regards

Andy

[wedfighter]

over@locker886 .... need a better picture I am afraid.

Seaman is right, the Sparkle BIOS is very good, I used the PNY 6200 BIOS on my 6600 Sparkle and top MHz was about 450 ..put Sparkle 6600 back on and 610 not topped out. This latest Sparkle does 610/740 before vmods. I did the vmods last night ( as worked out by me before the Russians weeks ago..cough ) and will test tonight.

Original volts are

GPU

1.39v in 2d Windows, 1.45v in 3D

Memory

2.55v in 2d/3d

Maximum I use is 1.75v in 3d for gpu and 2.95v-3.05v for memory.

Normally start off at 1.54v and 2.75v though.

Regards

Andy

What is your Sparkle? PCIE or AGP?
do u think the Sparkle AGP is as good as the PCIE one?
Mine is Leadtek 6600 AGP..
just reading in other forum n finally find a vmem mod for my card..
Just overshade the Resistor R84, location on the front of the board below IC chip with four legs..
One question, can the Sparkle BIOS works on my card (AGP) ? please tell me if someone have succed with this way..
thx so much guys...

[seaman]

Where is the voltmod for Leadtek 6600?
My card is Sparkle6600 AGP and can not do as well as zakelwe's.
Only 575/665 without vmod and about 600/700 with voltmod.I did not push far the voltages because memory will do artifacts at any voltage beyond 705clock and pushing core to high without memory bandwidth backup is useless.
So I run now 600/700 at 1.5/2.7V

[PuZo]

One question, can the Sparkle BIOS works on my card (AGP) ? please tell me if someone have succed with this way..

Yes, any BIOS works on your card, just as long as it's a 6600 (AGP) BIOS. I think even a 6200 BIOS would work...

Now, my question(s): How can I increase the Vmem on my Inno3D 6600 AGP card ? Or how to get rid of the artifacts that apear at frequencyes higher than 570Mhz for the mems ?

[seaman]

Yes, any BIOS works on your card, just as long as it's a 6600 (AGP) BIOS. I think even a 6200 BIOS would work...

Now, my question(s): How can I increase the Vmem on my Inno3D 6600 AGP card ? Or how to get rid of the artifacts that apear at frequencyes higher than 570Mhz for the mems ?

What memory is on your card?
As I recall,Inno6600 does not have a molex conector wich is vital for overclock.If you have artifacts in 3DMark 2005 at standard speeds,I would sugest you return the card to your vendor with a good reason.
Not having auxiliary power supply,you will not be able to overclock to decent clock because AGP is limited in the power amount it could supply.
We encountered same problem with a guy at MVKTech forum,and he had artifacts at stock speed in 3DMark 2005.Try the "Galleon" demo wich is most demanding for memory and you can easly see them against blue sky fundal.

[PuZo]

I have Hynix 3.3ns. And the card doesn't have a Molex conector . But no artifacts at standard speeds. The peak frequencyes were 470 and 550 - no artifacts (I used a Sparkle BIOS); 420 and 550 (with original BIOS).
I even tried to increase the Vagp but nothing happened, the results were the same.

[wedfighter]

Where is the voltmod for Leadtek 6600?

this is the link of Leadtek 6200 voltmod
http://forums.vr-zone.com.sg/showthread.php?t=23332
it's work for my Leadtek 6600
now vgpu @ 1.58v, v mem @ 2.78v
n run @ 500/670 only
Is this caused by the lack of Leadtek BIOS?
wanna try Sparkle one then..

[maturin]

HI, now I run at 539/663 with a Palit bios modded at 1.5 V, but I'm not sure that the card really go at 1.5 because I don't know where to measure it. I wana try more overclock and I read that Sparkle Bios is good for OC.
can I flash my Peak/Palit geforce 6600 (non-gt) Agp with a Sparkle Bios?
I made the check with VGABIOS and it said there is an error, and I have seen they have differen size (Palit 63.488 bytes - Sparkle 64.512 bytes).
Anyone flashed a Palit with a Sparkle BIOS?
And: may I use the Sparkle Bios without making any Vmods? My card has not a molex, only AGP power supply.

Thanx to everyone