8800s OVP Mod ......

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Originally Posted by hehee

i've problem of card shutdown when i do anything over core 710mhz.vmod at 1.45...
is anyway to remove few resistor for GTX to disable OVP...?

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The GTX OVP mod is post 1 of this thread :)

http://www.xtremesystems.org/forums/...d.php?t=162124

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Originally Posted by Timbosan

The GTX OVP mod is post 1 of this thread :)

http://www.xtremesystems.org/forums/...d.php?t=162124

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i've no luck for my GTX...1st batch...
get frezee anything above core =695mhz
no effect from 1.5v to 1.6v
dun dare put above 1.6 cause on water only

mem also limit to 1035 not much effect on mem vmod....
i guess OVP not for me ....

btw is anything overclocking protection for GTX ?anyone can answer this...?

hehee, if you are using stock, you shoud try a better cooler, - Thermalright for ex.

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Originally Posted by N1ck R1mer

hehee, if you are using stock, you shoud try a better cooler, - Thermalright for ex.

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on water now...temp never more than 56c

i mod the 4x rubycon 6.3v 1500uf but not the coil yet...
anyway i tried OVP ...no luck still kick in bout 1.6v

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Originally Posted by hehee

i mod the 4x rubycon 6.3v 1500uf but not the coil yet...

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http://www.xtremesystems.org/forums/...&postcount=234

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Originally Posted by hehee

anyway i tried OVP ...no luck still kick in bout 1.6v

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This is OCP, not OVP.

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Originally Posted by nfm

I noticed same exact thing, 0.1v less (I had to go down from 5.2K to 4.3K to notice the drop, 4.7-4.9K did nothing)
The 8800GT actually overvolts 0.05 to 0.07v at stock.

Edit: I just did the cap mod, so far so good.
http://img90.imageshack.us/img90/6805/capmodse4.jpg

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8800GT


What brings the benefits, Please For detailed statement.

Merlin

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Originally Posted by by -=Merlin=-

8800GT


What brings the benefits, Please For detailed statement.

Merlin

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yeah i'd like to know too what's the point of adding those and whats your overclock on the card? thanks

adding the caps in parallel to the existing caps provides extra filtering of the gpu voltage. However this only comes into play at voltages above ~1.5v. Adding the coils im doubtful would help at all. Adding the caps (& coils) wont give you a better overclock alone, but are meant as a supporting mod to assist running high (1.5v +) gpu voltages.

True, this can and has be done for many other hardware in the past, still it is not the best way to get rid of OCP.

I've moded 4 caps only helps the cpu overclock ...
b4 the vcore of cpu wasn,t stable jumping between 1.488-1.502...
after i put on caps mod it stable at 1.488
it benefit my Q6600 from 3.6 to 3.85 stable now.
but not helping for gpu overclock....
weird...

So for 8800gt/gts g92 mod's the same?
Little bit confused with so many pics :rofl: ...
Ocp makes the vga no longer "shuts" down ???

Clear pics would be great

OCP for 8800gt/gts g92 this one?
http://img264.imageshack.us/img264/4...00gtocpxa2.jpg

Ovp no luck so far correct?

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Originally Posted by VoRtAn_MaDgE

Ovp no luck so far correct?

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OVP has been done (read first few pages of the thread). Here:

Possible to prevent the card from the shut off without taking the resistor off?
Can we add a vr at one side of the smd and adjusting the pot to neutralize the value ?
Or maybe pencil mod for ovp

OVP works at home (1.62V burn OK). But OCP doesn't work (last explosion for Aquamark is the best test for it).

Any idea for OCP removal ?

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Originally Posted by jmax_oc

OVP works at home (1.62V burn OK). But OCP doesn't work (last explosion for Aquamark is the best test for it).

Any idea for OCP removal ?

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http://www.xtremesystems.org/forums/...1&d=1198824594

Removed, add a pot or penciled the bastard ? :D

:up:

Hmm, to cancel OCP, do I have to unsolder the 2 little resistor surrounded ?

Sorry for nub question guys but do these work with G92 GTS also ? Is there a thread on my card ? What is the difference between OCP and OVP ? Which do I need on a water cooled card ?

Any help would be great.

:up:

Up : how to cancel OCP on Primarion 3544 controller ? 8800GT for me.

I have an old A2 8800GTS-320. I tryed to pencil the assigned resistor (post #7). I lowered the resistance to 4,75 KOhm as you said. My default VGPU falled back with ~0,1 V. I started to turn down my soldered resistor (for VGPU mod...) until 1,45 VGPU and gained some extra Mhz but OVP (or OCP, I do not know what is the correct word) turned down my card during 3DMark.

Does anybody tryed it with success? Which is the good resistor and resistance value?

janos666,
It's possible your card is tripping due to OCP.
G80 OCP mod can be found here.

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Originally Posted by jmax_oc

Up : how to cancel OCP on Primarion 3544 controller ? 8800GT for me.

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You need to solder some SMRs on couple of SMCs.
->
http://www.xtremesystems.org/forums/...&postcount=546
Basically it's the same as G80 OCP mod. Just different locations.

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Originally Posted by T_M

For anyone interested in performing hipro's vGPU smoothing mods, here's a confirmed correct diagram of how to achieve it

http://img.photobucket.com/albums/v3...scan-front.jpg

The caps need to be electrolytic 1500, 2200 or 3300 uF with the '-' terminal on the ground side of the SMD cap, and the '+' terminal on the vGPU side.

The coils should be from an old mobo and just soldered across the existing ones.

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Where is the negative/positive? :confused:

as per PM, measure which side of the SMC is grounded and attach the negative to that.

Hi,

There is a lot of different ovp mod, i'm not sure that every one works perfcectly.
Did anyone find it and can set 1.6v on gpu ?
I need it, LN2 is coming last week so i don't want to be stuck at 1.4v.:p: Please help me!

Thanks ;)

I never had any luck in raising OVP

So how do you get 1.1Ghz + on a GTS 512 ?