8800s OVP Mod ......

[Timbosan]

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...?

The GTX OVP mod is post 1 of this thread

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

[hehee]

The GTX OVP mod is post 1 of this thread

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

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...?

[N1ck R1mer]

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

[hehee]

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

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

[N1ck R1mer]

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

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

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

This is OCP, not OVP.

[by -=Merlin=-]

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.

8800GT


What brings the benefits, Please For detailed statement.

Merlin

[winbond]

8800GT


What brings the benefits, Please For detailed statement.

Merlin

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

[Timbosan]

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.

[wittekakker]

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.

[hehee]

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...

[VoRtAn_MaDgE]

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

Clear pics would be great

OCP for 8800gt/gts g92 this one?


Ovp no luck so far correct?

[Timbosan]

Ovp no luck so far correct?

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

[VoRtAn_MaDgE]

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

[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 ?

[VoRtAn_MaDgE]

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 ?

Removed, add a pot or penciled the bastard ?

[jmax_oc]

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

[aussie-revhead]

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.

[jmax_oc]

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

[janos666]

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?

[largon]

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

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

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.

[EL RICHARDO]

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



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.

Where is the negative/positive?

[T_M]

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

[Benji Tshi]

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. Please help me!

Thanks

[T_M]

I never had any luck in raising OVP

[Benji Tshi]

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