Radeon X800 Voltmods

[nicepun]

I'll take some pics this weekend when I revamp my setup because I'm getting rid of my cpu tec/pelt. I'm still cannot believe my mem sucks!!

[Unregistered]

Hello,
I´m searching for an x800 pro vivo pcie card with 1,6 ns RAM. I tought that all vivo has 1,6 ns RAM but mine had 2,0 ns RAM. It´s an Card from ATI. I want to send it back. But i don´t know where i get the reight one. Can somebody help me.

[nicepun]

Well after doing some more reading of this thread I raised my vddq to 2.22v and my vdd to 2.15 and this helped out some. I have a temp on one of my ramsinks and the highest it gets is 41c. I hope this is not too high!!!

7180 (http://service.futuremark.com/compare?3dm05=1196653) 3DM05, not bad I guess!

[pierrick30]

i was wondering about a max temp for the second sensor of the x800.Im watercooled so the core doesnt get higher than 43°C even with 1.7V Vcore but the other sensor can go up to 65 especially when OCing the RAM.The PCB is really hot to the touch.What would be a "safe" value?

[nicepun]

i was wondering about a max temp for the second sensor of the x800.Im watercooled so the core doesnt get higher than 43°C even with 1.7V Vcore but the other sensor can go up to 65 especially when OCing the RAM.The PCB is really hot to the touch.What would be a "safe" value?


Do you mean the GPU Ambient temp?? 65c is quite high if you ask me. Mine is usually 3~5 degrees lower at idle and around 10 degrees lower at full load. What's your VDD and VDDQ set at???

[pierrick30]

65 is really the highest limit when OCing
i usually have 40°C in idle and about 50°C in fulli didnt mod the VDD and VDDQ .
my Vcore is currently 1.65V

[nicepun]

65 is really the highest limit when OCing
i usually have 40°C in idle and about 50°C in fulli didnt mod the VDD and VDDQ .
my Vcore is currently 1.65V


How's the cooling for your case?? What about room temp?? Do you suffer from any lag or sudden crashes in games?? What core/mem OC values for 24/7 use??

[pierrick30]

my case is open but there isnt much airflow in it.
my room temp....sorry i cant tell precisely should be about 20-25°C(if it helps my motherboard sensor indicates 36°C)
i dont suffer lags
i use 500/500 as usual value with an 1.6v Vcore
the maximum stable values are 570/570 with this Vmod

[Urlyin]

When you switch to WC you loose all the air a fan cooled GPU keeps circulating around the card so everything on the card runs warmer ..... You can see the fan that was added to my X800XT Pe in this pic here (http://forums.techpowerup.com/attachment.php?attachmentid=432&stc=1) and my side case fan does the rest ... here (http://forums.techpowerup.com/attachment.php?attachmentid=435)

[MeridiusZN]

I have the following problem: ...my X800SE goes well OC...with no vmod to 580/560. With Vgpu mod 1,53 i can hit 620 MHz on GPU...but when i had tried Vmem mod..something strange happend. I had changed Vmem from 2,02 to 2,05....OC on mem rose up to 575...but with Vmem 2,1 it went to hell...i couldnt set clock of memory modules higher than 550 and massive artifacts was showed everywhere. Even when i had changed VDDQ to 2,15....what is the problem? I have zalman V700Cu on GPU and small blue zalman passive coollers on memory modules. THX.

EDIT: all vmods i have mentioned was pencil mods according to instructions on the first page.

[Urlyin]

I have the following problem: ...my X800SE goes well OC...with no vmod to 580/560. With Vgpu mod 1,53 i can hit 620 MHz on GPU...but when i had tried Vmem mod..something strange happend. I had changed Vmem from 2,02 to 2,05....OC on mem rose up to 575...but with Vmem 2,1 it went to hell...i couldnt set clock of memory modules higher than 550 and massive artifacts was showed everywhere. Even when i had changed VDDQ to 2,15....what is the problem? I have zalman V700Cu on GPU and small blue zalman passive coollers on memory modules. THX.

EDIT: all vmods i have mentioned was pencil mods according to instructions on the first page.

Meridius .. the recommended VDD is 2.05v and the VDDQ is 2.15v ... I believe the SE has the 2.0ns mem chips ... try 2.05v for VDD and 2.08v for VDDQ ... it may also be your BIOS is running tighter mem times, try ATITool to change the timings

[malik]

Hi guys i did the mod i have the vcore at 1.69 620 on core watercooled but i cant get more then 590 out of the mem i have vdd at 2.08 and vddq at 2.16 whats the max i can go on the vdd and vddq?I didnt do the overcurrent voltmod will i be ok and can i run the vdd and vddq at those settings 24 7? Whats the max i can put on agp voltage in the bios its currently 1.6 and does raising it help ocing?

[Zoors]

A)

"VR IGPU Over Current Protection Vmod

Locate resistor R1596 in Image 5 and set your VR to 250k. Check the resistance on the resistor to compare after you solder the VR on. Again after soldering the VR on check the resistance. Like with the pencil mod you want to drop the resistence around 20 Ohms."

Should be 20kohm not 20 ohm.

B)

Pencil Time

For example if your starting Ohm reading is .418k and your new reading is .400k obviously it's a 18k drop in resistance."

Its not really wrong but unclear and invites to confusion. Better write 418 ohms and 400 ohms.

[Urlyin]

Hi guys i did the mod i have the vcore at 1.69 620 on core watercooled but i cant get more then 590 out of the mem i have vdd at 2.08 and vddq at 2.16 whats the max i can go on the vdd and vddq?I didnt do the overcurrent voltmod will i be ok and can i run the vdd and vddq at those settings 24 7? Whats the max i can put on agp voltage in the bios its currently 1.6 and does raising it help ocing?

Those settings are fine for 24/7, to go much any higher you should have active or passive cooling in place ... raising the AGP voltage in the BIOS will not help your VGA card over clock, it can help with stabilizing the NB for higher memory settings on Intel chipsets ...

[Urlyin]

A)

"VR IGPU Over Current Protection Vmod

Locate resistor R1596 in Image 5 and set your VR to 250k. Check the resistance on the resistor to compare after you solder the VR on. Again after soldering the VR on check the resistance. Like with the pencil mod you want to drop the resistence around 20 Ohms."

Should be 20kohm not 20 ohm.

B)

Pencil Time

For example if your starting Ohm reading is .418k and your new reading is .400k obviously it's a 18k drop in resistance."

Its not really wrong but unclear and invites to confusion. Better write 419 ohms and 400 ohms.

Zoor thank you for pointing this out ... I will correct the 20 ohm to 20k ohm ... and correct the second with inserting ohms in " your new ohm reading is " .... " a 18k ohm drop in resistance "

[Unregistered]

Those settings are fine for 24/7, to go much any higher you should have active or passive cooling in place ... raising the AGP voltage in the BIOS will not help your VGA card over clock, it can help with stabilizing the NB for higher memory settings on Intel chipsets ...


Thx man i have a his x800pro vivo @flashed to x800xtpe gpu i have the saphire bios right now whats the best overclocking bios for x800xtpe in the bios collection i saw a x850xtpe bios for agp is it possible to flash to that bios?

[pierrick30]

they are the same only frequencies varies

[Urlyin]

Thx man i have a his x800pro vivo @flashed to x800xtpe gpu i have the saphire bios right now whats the best overclocking bios for x800xtpe in the bios collection i saw a x850xtpe bios for agp is it possible to flash to that bios?

Can't say that I've tried it but with different cores I would say no .. I've always used the ATI BIOS, some work better for others....

[Unregistered]

Can't say that I've tried it but with different cores I would say no .. I've always used the ATI BIOS, some work better for others....


Thx for your help whats the bios that oces the highest? I heard changing to the xt bios instead of xtpe might help goin higher?

[Urlyin]

Thx for your help whats the bios that oces the highest? I heard changing to the xt bios instead of xtpe might help goin higher?

NP ... that could be possible... depends on the cards in most cases, if your card has memory that ocs well then a BIOS with more aggressive memory timings will work good for said card, obviously if the card doesn't have memory that ocs well then you'll need to chose a different BIOS. I've found it's best to test a few and find which works best for your card. You can also use a BIOS editor like Rabit to view BIOS settings and or ATITool to make changes to the memory timings

[Unregistered]

NP ... that could be possible... depends on the cards in most cases, if your card has memory that ocs well then a BIOS with more aggressive memory timings will work good for said card, obviously if the card doesn't have memory that ocs well then you'll need to chose a different BIOS. I've found it's best to test a few and find which works best for your card. You can also use a BIOS editor like Rabit to view BIOS settings and or ATITool to make changes to the memory timings



Thx Urlyin any guides on how to change timimgs?

[pierrick30]

woukd like one too XD
but due to the very large number of memories available on all cards(u can even have different revison with different ram) i doubt he can provide us optimal parameters for each one of them....

[Urlyin]

woukd like one too XD
but due to the very large number of memories available on all cards(u can even have different revison with different ram) i doubt he can provide us optimal parameters for each one of them....

Pierrick is right it would be difficult to do ... including the fact that like the GPU, memory oc will vary from card to card ... I can give you some tips using ATITool to help set the best timings for your card and with a profile can be loaded with ATITool.... these are based on the XT800XT PE some default settings may not be the same but DDR3 none the less...... and the end result we be from trial and error

Your memory OC will usually go down due to the tighter timings but the increased
memory bandwidth they yield more than make up for that. Try the top one first (TrcdRD = 7)
and the bottom (TrcdRD=8) second. The top one is always clock for clock faster but with
same chipset the bottom allows the memory OC to be higher offsetting that too. The red slashes indicate a timing to be changed from it's stock setting
Source ViperJohn (http://imageevent.com/marginjohn/viperjohn)

[Cally]

I would love to do this mod but after all the trouble I had just doing the flashing for the first time I don't dare think about this. My hands aren't steady enough anymore to do this work. I can't see sending my card all the way to Viperjohn just to do the volt mod. If there was someone in central Va. that did the vmod I would ask them to do it. Other than that I will just run the card as it is.
The knowledge on these forums is terrific though. People are lucky to have so many smart people together on one site.

[Urlyin]

I would love to do this mod but after all the trouble I had just doing the flashing for the first time I don't dare think about this. My hands aren't steady enough anymore to do this work. I can't see sending my card all the way to Viperjohn just to do the volt mod. If there was someone in central Va. that did the vmod I would ask them to do it. Other than that I will just run the card as it is.
The knowledge on these forums is terrific though. People are lucky to have so many smart people together on one site.

Cally ... if you're happy with the performance of your card ... great! enjoy it ... the flash to an XT with the added pipes is still a nice improvement ... Good job :)

[Unregistered]

Is it true the x800xt bioses work better for flashed x800pro vivo to xtpe vidoe cards?

[Urlyin]

Is it true the x800xt bioses work better for flashed x800pro vivo to xtpe vidoe cards?

not in every case ... some cards will oc higher using just the modded pro 16pipe BIOS... often is the case that a pro vivo needs to use an XT BIOS only because it can not handle the higher XT PE clocks without a vmod... this doesn't mean one can not take a XT PE BIOS and edit it to enable the pro vivo to use the XT PE BIOS at lower clock speeds ... there are differences between the two just as there is with different OEMs BIOS... from memory timings to fans speeds ... I use an ATI BIOS on a Sapphire card ... I wouldn't state it to be true ... ;)

[pierrick30]

there is no difference
i compared them using rabbit and only frequencies are different
all X800 Vivo and XT/XT PE are the same concerning timings so there is no point in using one bios or another exept the name of the card (XT Platinium ed. is just cool ^^)and unlock pipes

[Cally]

I need some informational help. Through a neighbors son who is in college in Norfolk,Va. I have found someone that has done vmodding on a gpu card before and is willing to do one for me.
What I need to know is specifically i need to have done to my card. I have the Sapphire X800Pro flashed to a XT. The core only clocks to 510.75 and the memory clocks to 570.86. What I would like is for the card to run at PE levels is that 520/520?
I don't know what to do at this point I am just pretty happy to have found someone that can do this work.
Let me include his reply e mail to my friend That may help understand better why I am asking for this help.
"Yea, i wouldn't mind doing it, however, make sure he realizes it will
void his warrenty. Also, I can't be held responsable if anything happens
to it. But it shouldnt be a problem, If you get it, i can do it over
some weekend. As far as paying me, it doesnt have to be much, really
just enough to cover parts (variable resistors, wire, etc.). Pretty
cheap stuff usually. Also find out exactly which voltmods he wants
done. on mine, i did the VDD (Core Voltage), VDIMM (Memory Voltage), and
VDDQ (Memory Voltage Tolerance or something like that). There is one
other which i didnt do on mine and that is IGPU (Core Current), which
from what i hear can be dangerous to mess with but if you use it right
can really increase the overclock.But yea, just lemme know what he wants
done and get me the card and i'll be glad to do it. shouldnt take too
long either. Well, i'm off to class. later"

That was his reply to my friend so not should I just include the vmod article and ask him to increase the voltage and ask him to do the vcore vmod?
I know I tend to write long posts but I really need some help. If I could just be specific in what I want this person to do he will do it and I should have a faster card.
Is there a danger that if my 4 new pipes could be defective that this vmod wouldn't help?

[Urlyin]

there is no difference
i compared them using rabbit and only frequencies are different
all X800 Vivo and XT/XT PE are the same concerning timings so there is no point in using one bios or another exept the name of the card (XT Platinium ed. is just cool ^^)and unlock pipes

The differences in x800 AGP bios are confined to clock speeds, ASIC ID, fan speeds, TVO or
VIVO, VGA/DVI or DVI/DVI IO, etc. The memory timings you can see with RaBit (RaBit.sys not
loaded) or ATItool are all the same in x800 AGP bios images but there are other latencies you
can not see and change.

RaBit.sys provides the real time hook to the current card in the computer. When loaded it causes
RaBit to show you the current running cards bios memory timings, even if you have "Real Time"
unchecked and not the bios memory timings of the file you are looking at.

The BbATI x800XT-PE AGP bios P/N 113-A26105-102 dated 06/09/04
allows 3 - 15mhz higher memory OC (average is about 6mhz) on almost all cards it is used on
than any other x800 AGP bios even though it has the same visible memory timings as other x800
AGP bios images. It is also the fastest bios in the benchmarks as well clock for clock.

[Urlyin]

I need some informational help. Through a neighbors son who is in college in Norfolk,Va. I have found someone that has done vmodding on a gpu card before and is willing to do one for me.
What I need to know is specifically i need to have done to my card. I have the Sapphire X800Pro flashed to a XT. The core only clocks to 510.75 and the memory clocks to 570.86. What I would like is for the card to run at PE levels is that 520/520?
I don't know what to do at this point I am just pretty happy to have found someone that can do this work.
Let me include his reply e mail to my friend That may help understand better why I am asking for this help.
"Yea, i wouldn't mind doing it, however, make sure he realizes it will
void his warrenty. Also, I can't be held responsable if anything happens
to it. But it shouldnt be a problem, If you get it, i can do it over
some weekend. As far as paying me, it doesnt have to be much, really
just enough to cover parts (variable resistors, wire, etc.). Pretty
cheap stuff usually. Also find out exactly which voltmods he wants
done. on mine, i did the VDD (Core Voltage), VDIMM (Memory Voltage), and
VDDQ (Memory Voltage Tolerance or something like that). There is one
other which i didnt do on mine and that is IGPU (Core Current), which
from what i hear can be dangerous to mess with but if you use it right
can really increase the overclock.But yea, just lemme know what he wants
done and get me the card and i'll be glad to do it. shouldnt take too
long either. Well, i'm off to class. later"

That was his reply to my friend so not should I just include the vmod article and ask him to increase the voltage and ask him to do the vcore vmod?
I know I tend to write long posts but I really need some help. If I could just be specific in what I want this person to do he will do it and I should have a faster card.
Is there a danger that if my 4 new pipes could be defective that this vmod wouldn't help?

If you had bad pipes you'd know it ... weak pipes can show artifacts at higher speeds ... but doing the vmods has no effect on the pipes per say ... you can still flash back... if you're still using stock cooling then go by the recommendations at the beginning of the article. I'd have him IMO do the vcore which of course will increase the core clock to PE speeds(520/560) and the VDD doesn't do much unless you do the VDDQ as well ... so those three vmods are what you are looking for to get PE speeds .... there's no need to do the IGPU unless you are ocing to the max ..

[Cally]

If you had bad pipes you'd know it ... weak pipes can show artifacts at higher speeds ... but doing the vmods has no effect on the pipes per say ... you can still flash back... if you're still using stock cooling then go by the recommendations at the beginning of the article. I'd have him IMO do the vcore which of course will increase the core clock to PE speeds(520/560) and the VDD doesn't do much unless you do the VDDQ as well ... so those three vmods are what you are looking for to get PE speeds .... there's no need to do the IGPU unless you are ocing to the max ..

I tried to play games with the PE flashed bios and they would crash. Doom 3 would freeze and show a screen full of spiked artifacts. I think that was because the core wouldn't run over 510? When I flashed the XT bios the card ran all the games fine with 16 pipes. I am not quite sure other than this if my pipes are bad or not. I guess your saying wether it is a XT or PE bios the card wouldn't have ran at all if the 16 pipes were bad? I did get 16 from the flash and I could boot to Windows. I could also play older games like Icewind Dale without a problem. What problems should I have looked for to know the pipes were bad?

[pierrick30]

my experience is without the Vcore vmod the x800 pro vivo cannot go higher than 510
i heard simiar things from ppl on various message boards
so its normal that flashing with the XT PE bios without any vmod crash the computer
u should first check frequencies before flashing anyway thats a very basic security procedure
u could have end up with a crashed computer :the card wouldnt have run at all from startup

[Cally]

my experience is without the Vcore vmod the x800 pro vivo cannot go higher than 510
i heard simiar things from ppl on various message boards
so its normal that flashing with the XT PE bios without any vmod crash the computer
u should first check frequencies before flashing anyway thats a very basic security procedure
u could have end up with a crashed computer :the card wouldnt have run at all from startup

Yes I did jump the gun there a bit. I tend to get nervous about doing these things and mess up a bit. It was only after the crashing and reflashing that I checked the core/mem speeds and found out that the core wouldn't run over 510.

[Sage]

ok volt mod done on core and mem only

Mem 2.25
Core 1.65


Core 630Mhz (425)
Mem 580Mhz (400)


I want more!!

X800SE btw

:p

5317 IN 3DMARK 05

[Unregistered]

Hi guys


I did the The voltmod for the core a couple of weeks ago i have it at 1.7 on water 615 580 but i didnt do the GPU Over Current Protection Vmod should i do it?

[Andre_Santarell]

hi, if i want do only vmod for 1.45 v wich paramters do i use ?
thanks

tha can i change in a permanent mode the fan speed of stock cooler ? for example for set at 100% with no ati tool o riva turner ?
thanks

[Trevor]

So, a 15k ohm drop = .04->.06v

So, if we want a very small increase (.06v or so); just pencil one of the resistors?

Sorry, I'm kind've super-new to vmodding, and I don't want to accidentally fry the card by pencil modding all of them when I'm not supposed to or something ^_^

--Trevor

Oh, and another question...
Which category do the GTO2s fall under =| (Mod article wise...)
Again, thanks.
--Trevor

[nicepun]

Does anyone know how to volt mod an x800xt AIW??? Obviously it's not for me. LOL

[Urlyin]

Does anyone know how to volt mod an x800xt AIW??? Obviously it's not for me. LOL

Nicepun .. have you compared the Two Vmod articles pics of the back of the cards with the AIW? Any pics of the back of the card?

[nicepun]

Nicepun .. have you compared the Two Vmod articles pics of the back of the cards with the AIW? Any pics of the back of the card?


Let me try to get a pic of the card from my friend and post it on here or something.:rockout:

Edit: Nevermind, dude not interested on vmodding it no more. Thanks ya'll!!!

[maylat]

hi , how i can check my video card core and memory voltages in my x800 pro AGP , there is any program to chek and modify the voltages , or is a feature in new mb or only for pci-e , i want to make the pencil mod or enable the 16 pips , i buy this card the first day of release in june last year i can overclock stable 580 / 580 , i get about 6000 in 3d mark http://service.futuremark.com/compare?3dm05=946054 is worth to open the 16 pips and the pencil mode
tanks

[Urlyin]

hi , how i can check my video card core and memory voltages in my x800 pro AGP , there is any program to chek and modify the voltages , or is a feature in new mb or only for pci-e , i want to make the pencil mod or enable the 16 pips , i buy this card the first day of release in june last year i can overclock stable 580 / 580 , i get about 6000 in 3d mark http://service.futuremark.com/compare?3dm05=946054 is worth to open the 16 pips and the pencil mode
tanks

Maylat .. it has to be a PRO VIVO to flash to 16pipes and not every core oc's the same but it can be worth it to do the volt mods... no software that displays voltage to my knowledge

[utetopia]

I've just done the pencil mod for VGPU on resistor 1596. The original was 1.39v and now it's at 1.48-1.49v.

I want to run up to 560 core. Cooling is Arctic Silencer 4 load temps 60 something.

Is this safe enough or should I drop it a little?

Edit: Dropped it to 1.47 to be safe. Working at 530 core. A new record for this card. :D

Could someone post an image showing how much tape you used? Does it matter much?

[Zoors]

Tape is just for touch protection. I didnt use tape at all as I wont touch the resistor.
My temp max is 57.9 core, under max OC, that is 561/600, and I also run that Arctic Silencer.
I also allways stay 20mhz under where artifacts shows their ugly faces..
Remeber that cooling gets better after you used it for a while, and it has to do with the stuff you use, it will "grow in".

[bikr692002]

You are crazy doing that shit when it's plugged in...

[FW1374]

Will this voltmod work on X800GTO's?:confused:

[Urlyin]

Will this voltmod work on X800GTO's?:confused:

go here (http://www.techpowerup.com/articles/overclocking/voltmods/112)

[skandal]

Will this mod work for the PCI-E version or should i use the Radeon X800 Non-Pro/X800 XL/X850 Voltmods

I have a Asus X800XT by the way :P

Thanks.

[Urlyin]

Will this mod work for the PCI-E version or should i use the Radeon X800 Non-Pro/X800 XL/X850 Voltmods

I have a Asus X800XT by the way :P

Thanks.
skandal ... you need to verify your PCB layout and match the ic's but I would thing you need to look at the X800 Non-Pro/X800 XL/X850 Voltmods...

[rpg711]

i have absolutly no idea wat im doing with the pencil mod... i have a High Tech HX80GTOQT256GVN Radeon X800GTO IceQ II Turbo 256MB 256-bit GDDR3 PCI Express x16 Video Card red pcb so its the x850xt pcb and pics are below...
think i need beter cooling? :laugh: lol

[dudezer88]

I tried this mod and it didn't really provide any benifits so I cleared the graphite from the transistor to restore my gpu voltage, but now my temps and about 10C above what they used to be. Why is this? Is there any way to fix this?