Core OC'ing capability might be also increased with Vmod (by bios), but take care of cooling the MOSFET's !!Quote:
Originally Posted by Sidolin
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From Finland to Germany (or everywhere to Europe) the postage cost is exactly the same as in side Finland (in the case of letter) i.e. minimum postage cost less than 1 euro. Thank you before hand :)
Mod removed already, going to measure resitance off vr's I got, maybe I killed them all before doing the mod. No short in pcb, very sure off that because with mod in place but without vr in fanconnector vmem is back to 2.73v so definetly something wrong with either vr, or inside fanconnector there is a fault ( short? ) when I put the vr in there :(Quote:
Originally Posted by SikaRippa
Ok mod worked fine just I got a 20ohm vr instead off 20Kohm.
SikkaRippa do you still have those caps for the ultimate mod? Very interested in them because I'm hoping it will prevent my card from dying so slowly ;)
Pm me with shipping costs ect if you got them :)
Nice you got Vmod finally working ! How high level you set voltage?Quote:
Originally Posted by MartianInvader
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I have still a few capacitors left, and I can send you a pair. Just send PM for me (your address..). However, I think in your case changing capacitors is not needed (at least yet). Your BS-free frequency is quite high and BS appears rarely (only with 3dmark06 ???). So, it is possible you will not gain too much with new capacitors. In fact there is (tiny) risk to get even more poor performance because of desoldering/soldering of the capacitors might fail..
I suggest to first try out adding extra capacitors between TP's and check out if you still get BS with 3dmark06.
--
I downloaded 3dmark06 and tested myself. I did NOT get BS at stock frequencies with GW 6800le (version 1b). My processor is not very fast (XP 2400+) which makes score quite low. That might be one reason why I did not get BS: slow processor is not capable to fetch data in a fast manner. What prosessor you have ?
Venice 2.7ghz something newer then you got but still not fast ( enough lol )
Vmod went fine this time I got pics but very bad quality so no pics yet I will post some later when I will clean the case out so I can do some more modding to my board. Also I measured actual gp uand it was still 1.1v! So I remodded the bios voltage tabel and are now at a actual 1.4v. Benchable on 2k1 470/970 1.4v/2.9v. I'm currently doing a cleanup on my win2k install because with these clocks and 500mhz cpu increase but no major tweaking my score was actually lower in some cases because off drivers and dx version but I'm hoping to gain some ranking maybe on the orb :)
PM sent, I want to do the full mod think it will allow a much higher stable overclock. With 2.9v sometimes I got to startup my pc twice or so because off no mem voltage I think this is caused by capacitators dying out on me.
Allright I finally got my Hiper PSU and believe it or not but the BS's are gone!
Power levels are 12.0 5.05 with this baby and I need Asus utilty (3 digits after comma) to notice any fluctuations. Aparently this xfx xt card (possibly other too)really likes a high end PSU, I just hope it stays this way and my card isn't damaged already.
Oh jeah some stats to supplement the previous ones:
UT2k4 linux amd64:
380x800 no prob
423x817 no prob (the highest the selftest would allow me, before becoming consistent in failing)
Will test some more in Windows later on.
Sorry, answers take toooo long - *little* busy in real life :(
Have ever seen (or anybody, ever) a TOO fast computer :DQuote:
Originally Posted by MartianInvader
OK.. Bios Vmodding seems to have problems in many cases = only way to verify voltage level is physical voltage measurement.Quote:
Originally Posted by MartianInvader
I have sent caps for your, I'll hope your mod will be success :) I wonder your capacitors are not yet fully ruined since you can have such high frequencies etc. Maybe windows clean-up will/would help a lot to startup etc problems (?).Quote:
PM sent, I want to do the full mod think it will allow a much higher stable overclock. With 2.9v sometimes I got to startup my pc twice or so because off no mem voltage I think this is caused by capacitators dying out on me.
Nice you got your card working better :up: A better PSU is a good solution to minimize BS-problems (even prevent in some cases).Quote:
Originally Posted by scorpion77
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At least some cards get ruined more and more when old, but there are so far too little info about XFX 6800XT cards to say anything for sure. The purple capacitors (Sanyo SVP's) are much better than 'green' (CV-EX', so the deterioration rate has to be much lower.
In the case any problems/BS-performance decrease in future, please post results !!
Hi all,
firstly i want to apologize for english that will be used further, then i want to thank all who participate on this BS problem, special thx to SikaRippa, Bilabong and Zadah.:woot:
I bought my card before one year, it's specs are:
GW 6800LE
caps 4 7 470 6E
made in China
codes are identical to card version 1b
Problem was quite a typical:
-BS after several hours in 3D mode (almost immediately in HL2).
-3Dmark03 passed on default memory frequency but not on higher freqs
-3Dmark05 never passed on defaults
-BS was not dependant on core freqs
-BS underclocking mem freqs wasn't solution because of large artifacts
! I'm ruing the theory that versin 1b is non BS !
I decided not to RMA and rather do some enhancements because of good probability to "upgrade" this card to 6800GT. According to Zadah's and Bilabong's suggestion i made:
-simple cap mod (TP1-GND) with two parallel 4700uF caps
-bought stronger PSU (voltages under full load never drops more than 1%)
Effect:
-3Dmark05 passed
-BS occured ocassionaly after hours of playing HL2
So i decided to test further and made:
-opened rest of shaders to 16v6 (no artifacts at 350/700)
-flashed to Aopen 6800GT
Card was realy stable, but in the last months BS occured again and more and more frequently, so i decided to make:
-advanced cap mod (1000uF between TP13-TP14)
-higher mem voltage by 0,5V (6k8 resistor between TP9-TP10)
Card is more stable than with simple cap mod (tested only one day).
-3Dmark05 passed withou problems at 350/700 but not at 400/800
-Aquamark passed even at 400/800
-played 6 straight hours of WoW without BS
-audible fps-dependant noises at higher than 350/700 freqs are present
That was my situation, but finaly i want to solve this problem with ultimate cap mod. BUT there is a problem, in our country it's impossible to buy on shop (even e-shop) such quality caps in small lots. I can only hope that any good soul will be able to sell me 2-4 of these caps.
I have to ask SikaRippa or anyone else, can you send me couple or more of these quality caps. I'll repay you for sure ;)
Hi,Quote:
Originally Posted by Mula
I wonder you have been 'dealing' with the problem quite long time, since your remember Bila and Zadah. Did you also take part to that BS-problem thread in the GW-forum (which has already been destroyed by GW) ?
--
'Version 1b' has been working BETTER than many other version BUT it is now 100 % sure some of those are also BS-affected when old. The first BS-case with 'version 1b' was reported in last summer (!) it was quite inaccurate. Only a few days ago I got exact codes about BS-affected card having "4 7 470 6E" capacitors i.e. 'version 1b'. That card has identical coding to the card shown in document, so I will modify document (hopefully soon..) with this new PROOFED info + many other things :)
--
My capacitor 'supply' is running out :( but I still have one extra pair :) Send a PM with address, so we can arrange this.
--
I know how and where can those capacitors can be obtained. Problem is a large minimum amount of capacitors they sent/provide and high postage cost. Therefore only reasonable way to get those capacitors would be (for somebody) to buy a whole reel (!!) and send samples to users having BS-affected cards. (((In theory I could do it but how many capacitors will be ever requested 10 ? 20 ? 100 ? )))
Yeah i remember very well, GW forum was the only source of information for me. I still have that destroyed site in my favorites, just to remember GW behavior.. ::mad:Quote:
Originally Posted by SikaRippa
But it looks like the only way how to obtain these caps...Quote:
Originally Posted by SikaRippa
I'm still trying to contact any electronics repair center and ask them for these caps.
I got the caps sikkarippa you the man :banana:
When I saw the envelop I thought wtf is this, I openend it and again wtf is this but then I rememberd these :)
Will try to get some good pics this time around ;)
Me too :D (have that still bookmark'ed). Did you noticed that there was FOUR threads considering BS-issue in GW's forum and *THEM* deleted those all... In one thread (yes I saved that just before :D :D ) the moderator confirmed BS is ' a design flaw' :Quote:
Originally Posted by Mula
That happened ~ may of last year, I wonder whether they have dealt the problem :( .. or deal = forget in GW's language !!!!Quote:
Originally Posted by GW's moderator
Sent PM for you about capacitors.Quote:
But it looks like the only way how to obtain these caps...
I'm still trying to contact any electronics repair center and ask them for these caps.
:toast: Have you already tried out those ?Quote:
Originally Posted by MartianInvader
Sorry been very slow lately but will do it this week ;)
Hi! I'm new here and my English isn't so good.
I encountered also this not funny problem with my Leadtek Winfast A400LE TDH Rev. A2, an used one. The Green Capacitors on that card are labelled: 46 - 470 - 6E.
The seller described it as fine working with 12/5. I don't know whether I can believe this or not. It gave Black screens from the the day I put it into my computer (these ones where the screen goes black like standby the power consumption of the hole machine rises, boot up again only possible by holding the Power Button down a few seconds.
First I tested with 3DMark03, and my favourite game Guild Wars, I tried to fix the problem with several nvidia drivers and the rivatuner. It gave me only few seconds more ingame. First thing I suspected was the Power supply because of my hungry Prescott 3.2 GHz. Weird thing with my 300W noname Power supply it ran best and occasionally I could finish a 3DMark03. My 400W and 550W Power Supply caused earlier BS. From my side no OC of GPU and RAM has been done, I only tried to unlock further pixelpipelines and shaders with
the riva tuner.
After 2 weeks of trial and error with other components and a lot of frustration on my side I found Your interesting article yesterday. Immediately I desoldered a few Capacitors I.Q. 1000µF from an broken CUSL-2 Mainboard because I found a similar Capacitor right in the first picture of your article. I attached the 1000µF/ 6.3V/ 105°C carefully to TP9 and TP 10 on my card and in order to hold it in place I fixed it with glue tape for testing.
http://people.freenet.de/japanblue/Kondi-Mod1.JPG
After that modification I played Guild Wars whole evening and no BS occured, looks like the 6800LE is working fine now. Interesting thing would be if the opening of pipes or shaders increases the chance of destroying the capacitors and how long does this modification work until the card ist suffering from BS again?
The capacitor is soldered now and the card still working fine.
Thx a lot for this discussion.
it's working for now, but with the time, bs will be back... maybe in the month or two, maybe in the half of year... ultimate mod is solution for ever (that's the way it looks for now)...
Hi Guppifil !!
Thank you for comments and providing new info :)
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Leadtek-cards have been so far better that e.g. GW & MSI-cards. However, during last few weeks several case have been reported. For instance in Finish forum was reposted BS-affected Leadtek card ("4 9 470 6E", Rev:A, Assy rev:C, thx Tiputtaja !!). I have proposed that ALL 6800(le)-card using this PCB-design are propably BS-affected when old. The reports with Leadtek-card seems to confirm that assumption: Leadtek's are also BS-affected but mean-time-of-failure is longer.
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Extra capacitor modification may fail when old, as jlovrek already said. Maybe you can run long time without problem, maybe not. Some models (e.g. "4 3 470 6E" GW or MSI) are usually working a very short period with the extra capacitor. Certain models with a GOOD added capacitor have been working so far quite long time (year).
--
Interesting info about PSU's :) I have demonstrated myself that lower 5 V voltage value increases BS-propability (in addition to unstable level = poor supply). Could you check what voltage level you have in 5 V line in your 300 W and 550 W (400W) supplies ? That might give solid explanation why 300 W provides the best performance.
Hey SikaRippa,
long time no see,
I've recently done the Vmem mod again, after getting a little itchy to do some volt mods (TP13-TP14). Also, for a long while, pretty much regardless of clock speeds, memory seems to cause problems.
XFX 6800 Rev2 16/6 + NV5
Autodetect is quite low. I flashed very loose timings, and 1.4V (1.33V measured). Although I can set, and run 3DMark2005 as high as 414/950 it occasionally 5-30min "glitches". During benchmark or whatever 3d, the screen flickers, and suddenly its like its running at 75% speed. I have forced performance level enabled, and fastwrites off (enabling even at default clock speeds = havoc)
After voltmod (default 2.72V), 2.85V, max on memory still about the same... up to 978 in ATItool for 5min+ without artifacts, BUT internal driver test, coolbits or rivatuner fails even at 790.
Could it be wrong Vddq, or other memory voltage parameter. I tried capacitor mod before but had very limited results... not sure what the problem could be. I could measure whatever points you need....
Hello.
I am using AXLE 6800XT AGP card.
My card sometimes get BS, so I tried Enhanced capacitor modification
with 10V 2200uF ESR caps. It worked and never BS or other hang.
But the parts named R47, and 3 voltage chips are so hot. I can't touch
these chips even though cooling with 12cm FAN beside. The plastic base
of purple color caps near the R47 parts are melted little. But I can't
remember these parts get so hot because of Caps mod or from bought the
card. What is the problem? Thank you.
Hi,Quote:
Originally Posted by ***Deimos***
Nice to *see* you again..
Yep, I remember your case (vmodding, capacitor did not help too much/at all). It quite hard to say anything wise (or give killer solutions) to solve your problems. Some comments/thoughts. There is only one memory voltage in this card (i.e. no seperated VDD VDDQ) so there no room to play with highly optimized VDD/VDDQ ratio. However, playing with Vmemory and Vcore ratio might have some effect (???). Capacitor mod is (designed) to overcome BS-feature, so when having high (~900 MHz) memory OC-capablity by defualt no extra gain can not be expected. The idea with the mod is to compensate the poor performance of the ruined (too 'weak') original capacitors.
It is possible those glitches are due to throttling i.e. overheating ? What is your OC-performance having default pipes ?
--
Thank you for info about your card version and measured value of "1.4 V" :up: I have assumed that bios settings can not set Vcore in a linear manner, and that somehow confirms this. Since, some of the XFX LE and XT -cards (even with "purple" capacitors !!) are BS-affected, it would be nice to heard whether there is any other coding/version number in addition to "rev2" ?
Hi,Quote:
Originally Posted by dkr09
Thank you providing new info :up: I have never before heard such manufacturer "AXLE" !! Is your card similar to this one:
http://www.axle3d.com/i22.htm
Could you specify which code you have top of "green capacitors" e.g. "4 3 470 6E" ?
--
The high temperature of components is **feature** of this card model. I wonder the capacitor mod do not have any affect to temperatures, maybe mod I have measures temperatures of the components:
http://img401.imageshack.us/img401/7...emp27nx.th.jpg
In that case temperature of "R47" was 62 C. The R47 is an inductor providing current for core (part of regulator) and high temperature means extremely high power (=current) through that device. Have you increased core voltage ? A too high Vcore (high temperature) may cause several problems for instance components could burn.
auto-detect with 12/5 and 16/6 is about the same. top 3dmark speed also same. Likewise, it was at similar level before I installed NV5. Although increasing Vmem increased top memory speed before artifacting in rthdribl or atitool, autodetect still same or even lower. I think there may be some damage on the card. When I made a mess with some AS5 one time, I used contact cleaner to clean it up. I sprayed it everywhere, and made puddles of AS5 that even went under the chips (GPU, mem etc).. I sprayed a lot, until it was nearly clear... and it vaporizes fast. Dont know how big issue AS5 residue could be.
I will try the capacitor mod again, because last time the legs to the capacitor were too long. I will post some capacitors I have. I'm not sure which has lowest ESR.. I think they are all hybrid, 6.3V-10V and 1000uF-6000uF...
I just thought of something!
Typically these glitches happen when it starts a 3dMark game test, ie change in load on GPU/MEM. Perhaps there is cold-solder and poor contact somewhere, or voltage regulators cant regulate voltage properly. It really "feels" like something is throttling.
Also, to elaborate, it happens at 350/800, 350/960, as well as 410/800 and 410/960... so I didn't think power supply or heat are the issue but you never know. I'm still trying to figure out what kind of shims to put uner the NV5 because not perfect contact with the mem chips... back of the mem chips feels only lighty warm during benchmarking.
Thank you for your reply, SikaRippa.
Thanks read my post and give an advice for me in spite of my poor english.
My card seems to made that site,
and almost same that card linked without
cooler and some parts. I think it is OEM products.
The value of green capacitor is 40 470 6E.
I bought this card a week ago and the cards get BS from when I bought.
I tried plug in and out the card several time for test. Changed VGA and
motherboard and power and so on. Now the R47 parts and 3 chips are
not so hot with additional 12cm cooling fan with composed first PC parts.
I don't know why the situation was happened. I don't have tester so
I checked core voltage with Rivatunner monitoring program, but It says
core vid is 2.0v. It is incorrect value, isn't it? Another report tab,
the voltage was 1.2v on the BIOS info.
Anyway all is good.
My card driving with 16/6 pipe and 400/800 clocks without any problem.
And BS situation disappeard completely.
I am very happy. The cap mod was very helpful for me.
Thanks and Good luck SikaRippa!