BGA mem chip resoldering. Xtreme enough?

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08-31-2003, 08:35 AM
ALT-F13

BGA mem chip resoldering. Xtreme enough?

About a month ago i killed my R9800Pro with monkey wrench (tried to use it when epoxied heatsinks and cracked up one memory chip). After that i went for vacation and this week, when i returned i started to search a solution for repairing it.
And here goes the miraclous resurrection of R9800Pro: cracked chip was resoldered with another 2.8 ns Samsung from my old Triplex Ti4600.

Next project - to solder the same 2.8 chips on to R9500 and beat 22k on it:) Stay tuned!

http://alt.modlabs.net/bga-chip-resolder.jpg
08-31-2003, 08:39 AM
saaya

NICE! how did you solder them? how many solder points do bga chips have?
08-31-2003, 08:46 AM
faruquehabib

wow, thats impressive
08-31-2003, 09:04 AM
taco

hmmm, this makes me think about my broken ti 4600 i got for 50 dollars..

heres my problem, see pic below. i think someone told me its bad memory or somthing, i really want it to work.. :(

http://www.angelfire.com/amiga2/wtf_..._messed_up.JPG
08-31-2003, 09:22 AM
saaya

could be the gpu as well...
08-31-2003, 09:24 AM
Sick0fthelies

can you solder a new gpu on?
08-31-2003, 09:34 AM
KnightElite

Holy §§§§ man, that's hardcore. Well done.
08-31-2003, 09:39 AM
W1zzard

144 solderballs with 0.8mm pitch on 12x12mm ... i assume you used industrial equipment..
08-31-2003, 09:49 AM
afireinside

God thats crazy. Xtreme thing of the month.
08-31-2003, 10:35 AM
JCviggen

thats extremely impressive.
08-31-2003, 10:49 AM
saaya

did you use this baking solder stuff?
08-31-2003, 11:16 AM
Illicit Tweakin

I'm guessing liquid solder and hot air.
08-31-2003, 11:17 AM
Penti

Well all i'm intrested in is what equipment you did use ;)
But very nice job there :D
08-31-2003, 11:31 AM
saaya

it should work if you just put a tiny drop of a conductive liquid as as on it and then carefull stick the chip on it and then glue it on so it doesnt move.
08-31-2003, 11:41 AM
ns_ripper

all cirquit mounted devices are baked on those cards. The cards go trough a sort of oven a few times on different temperatures. The different temperatures are used so that the other components don't come loose on the pcb. For this willing to work you need to use solder with different compositions so that the melting point is different.

I recently saw this in action on a video where they where producing DDR memory sticks.

so you can resolder it by heating up the chip to a certain level. or put the whole card in a very acurate oven :)

On the video they also said that the chips can whistand this process for 2-3 times.
08-31-2003, 11:54 AM
saaya

http://www.seattlerobotics.org/encod...6/oven_art.htm
08-31-2003, 12:32 PM
Phalanx28

Quote:

Originally posted by saaya
http://www.seattlerobotics.org/encod...6/oven_art.htm

Very interesting. Nice link.

Phalanx28
08-31-2003, 01:48 PM
Thaddy

I know they're incredibly expensive, but wouldn't it be possibly to buy 2ns or 2.2ns chips and solder them on?:slobber:
08-31-2003, 01:58 PM
saaya

if you have the right equipment yes. but if you buy only 8 pieces they are really expensive! the price of the memory is like 60% of the card i think
08-31-2003, 02:23 PM
berkut

Use 2.2ns chips from a geforce fx 5900 on a radeon 9800 :slobber: 500mhz mem clocks :slobber:
08-31-2003, 07:32 PM
STEvil

If someone could point me to a place to buy that ram, I would consider doing this.. saying I had the proper tools to remove the current chips and put the new ones on.. and they weren't going to cost an arm and a leg 8-/

That makes me think of something else - Take some mushkin sticks of ram and put 2.2ns on their PCB... hehe 8-)
08-31-2003, 07:39 PM
saaya

video memory = cl3 :/
08-31-2003, 09:16 PM
Kunaak

start with some cheap cards, and try that first.
08-31-2003, 10:53 PM
Ragnarok

while I was in China, I visited a few of the soltek workshops, where they acutually fix dead motherboards!...

the most impressive thing was probably the BGA resoldering station, should have seen how easily it desoldered NB and SB!!!
the machine would grip on the chip tru vaccum and heat the BGA pad up...

It was acutally pretty cheap to get it done as well, costed like 10 bux..
08-31-2003, 11:37 PM
La1kr0diZ

The chip was resoldered using liquid solder and hot air as Illicit Tweakin already said. We`ve also seen north and south bridge resoldering here, so its also possible if you have the needed parts.

2 STEvil
heh you guessed right (about mushkin). Were searchin for the spare memory module rite now. But that would be an experiment.

If any of you guys have a dead card with 2.8ns bga chips, that would be really great if you shared it for the experiment. :)

One chip on our FX5900 unsoldered from high temps. We couldn`t see dis by eye, though when we fully unsoldered the chip and put it back, the card started working without artefacts again.

BTW, Guess who will give a spare 9500 for memory resoldering? :)
09-01-2003, 03:58 AM
saaya

hmmm id love to solder the gpu of my 9100 on my 8500 card! the 9100 does 330 without any mods on air but has some crappy ram. the 8500 only does 320 with vmods and watercooling :/

where do i get such a tool?
09-01-2003, 04:33 AM
Ragnarok

have u got 30K USD to start with :D?
09-01-2003, 06:25 AM
saaya

is it that expensive? :(

i thougt maybe its just some kind of advanced solder iron... :D
09-01-2003, 11:17 AM
ALT-F13

Tnx guys. I'm quite surprised and glad to see that our humble efforts are appreciated by XS, the most hardcore ocing forum. It make us (me and my m8 La1kr0diZ) feel that we do the right things:)

Sick0fthelies
Yes, we can solder GPU, NB, south bridge, CPU socket... Everything. Actually it is theoretically possible even to solder each detail to bare PCB and get working motherboard or vidcard, though it will be Xtremely hard (and senseless) task;)

saaya
Illicit Tweakin
Penti
ns_ripper
We use... Mmm... I don't know if there is an adequate term for that equipment, but straight translation from Russian is "soldering station". It use hot air for soldering.

Thaddy
saaya
Do you have any ideas where to buy memory chips? We can't get anything less than 4 ns in stock in Ukraine:(
Delivery from another countries is not a problem, but we don't know where to find it.

berkut
Glad to see you here. U r probably nearest (geografically) XS member to Ukraine, by the way;)
We have Gainward FX5900 here and it is possible to use its memory if we could solder it back later (we've already soldered one chip back - when we mounted WB on core memory lost its massive heatsink and one of chips unsoldered from temperature (!). Of course it hasn't fall from card but FX didn't work until we fixed the problem).
But, there were 2.0 ns R9800Pro from PowerColor and they haven't shown something close to even 425-450MHz... R9800 has poor PCB design that limits memory overclocking (and also kills any advantages from DDR-II memory on 256Mb version BTW). So it is probably pointless to try to solder 2.2 ns chips from FX5900.
But if we could find any more 2.8 ns chip (at least one - we have 7 for now), then we'll solder them to La1kr0diZ's R9500NP. He's got 20700 with 430/302 clocks (crappy 3.6 Infineon), watercooled CPU and 240MHz HyperX, this week we'll try to break 21k with Vapo XE and GeiL PC4200;)... Then probably with 2.8 ns chips 430/400 (my Ti4600 worked on 385 mem without voltmodding) will be possible as well as 22-22.5k :)

There is one possible problem. AFAIK there are different BIOSes for different memory (3.6, 3.3 Hynix, 3.3 Infineon and so on) on 9500/9700. What is different in that BIOSes?
So if we solder 2.8 ns chips on card with 3.6 ns BIOS - what will happen? In other words - if u use wrong bios (not for your memory) on r9500/9700 what will happen then?

And one more question. I'm a little loosed in ATI cards line for now... Don't they have any R350-based card with R9700 PCB design? We could try to change GPU then, but we'll need a bios to get it work:)
09-01-2003, 02:34 PM
Holst

Ive never (dared) to try this before.

I do have some hot air equip and a very steady hand if sombody wants to donate a card.

I have two dead TI4600 cards, one that definately has good memory if somebody in the UK wants to try a GF4TI upgrade.
If you supply a card ill try sticking my memory too it.

I might have a practice at work if im not too buisy, although I dont have a spare working card to try this on. (that I can afford to replace)
09-01-2003, 03:04 PM
saaya

alt-f13, the sapphire (i think) radeon 9800se has the 9700pcb with r350 gpu. not sure if its sapphire, but there is definately a 9800se card that uses the 9700 pcb.

the diference in the bioses for cards with diferent memory is mainly memory timing and voltages, some memories need less or more voltage, not every memory chip is the same...

but since bge is pretty new i think they are all very close to the bga specs... try a bios editor if the card should not work correctly to change the latencies.

i would try to get the same memory that already is used ona 9700/9800card so you know it works and in case you cant edit the bios you can use the bios odf that card.
09-01-2003, 04:01 PM
La1kr0diZ

saaya, so what will happen if we solder the chips from another manufacturer. The card just wont POST?

The interesting thing is, hat will happen if we solder a gpu of 9800 to the 9700 pcb. Will it work as a 9800 se with a correct bios? We have good relationships with the guys in sappire, so i think we`ll be able to get a bare 9800 chip for that...
09-01-2003, 04:48 PM
hedge

You guys are all nuts! :D
09-01-2003, 05:15 PM
saaya

afaik it should work, the 350 on 9700 pcb i mean. the r350 is just a minor upgrade to the r300 gpu, the pins are probably all the same.

i dont know about what will happen if you use diferent memory, im not sure if all memory chips are pin compatible, maybe some memory chips have the same pins but in a diferent position , know what i mean?

i think all the memory chips are pin compatible bzut better check out the data sheets to be sure.

i think if you use a completely new memory chip for the card that it might crash and not run as high as it should because the timings are diferent ya know.

but actually i think theres a very high chance that you can take every ddr1 bga chip and solder it on the pcb without any problems. if you have good elations to sapphire ask them if they can buy some memory for you.

they can at least give them the right phone numbers and email addys to get some memory ;)

im sure if you tell them or their memory supplier about your fun project they will support you (if they are nice people).
09-01-2003, 07:38 PM
STEvil

saaya - video card ram is NOT cas3, and a hairdrier with some kind of directional vent on the front may work...

Mine is actually cas2 right now, and can be set to cas1 with the use of radedit 1.1.

I have a toast Ti4400 here with 2.8's on it.. they did 715mhz stock volts 8-)

Maybe I should break out the hairdryer and see if I cant pop them off just for the fun of it 8-)

ALT-F13 - the chip ns rating doesnt matter, nor make I dont believe. There are many radeon bioses out there and they pretty well all work with every card, as long as you dont use a herc bios on a card with dual ramdacs 8-)
09-02-2003, 02:46 AM
La1kr0diZ

STEvil, LOL. Why are there different bioses for samsung, infineon and hynix memory for radeon9500. Did you try yourself to swap em?
09-02-2003, 05:48 AM
littlewoy

holst i have a semi-dead Ti4400 you can experiment on if u you like. I'm pretty sure it died cos some AS epoxy got stuck between the RAM feet. I then tried pull off the RAMsinks so i could RMA it, unfortunately i managed to pull one of the chips nearly out of the board :) . Its been sitting in a box for just over a yr now. I think the core is in good shape, RAM just needs replacing :) where r u in the UK?
09-02-2003, 06:55 AM
KnightElite

ALT-F13:
As to buying Memory chips, you could try ordering directly from the manufacturer. It's probably expensive to order in small amounts though....
09-02-2003, 08:22 AM
saaya

most card video memory runs cas3, radedit shows cl2 and cl1 but afaik those are just phantom options.
09-02-2003, 08:26 AM
]JR[

Just order them as samples, and make up a good sounding company name. I work for xerox so when i need chips i simply order free samples and national in particular send me any semiconductor they make free, they dont know its for personal use :)

Yes the soldering is achieved by a heat gun (available @ rswww.com for those in the uk) and solder, and a vacuum chip pickup device available from there too, but its by no means easy. A couple of guys at work do it on a regular basis, for work related pcbs.

Nice skills tho gentlemen.

]JR[
09-02-2003, 08:49 PM
STEvil

Quote:

Originally posted by La1kr0diZ
STEvil, LOL. Why are there different bioses for samsung, infineon and hynix memory for radeon9500. Did you try yourself to swap em?

Actually, I have tried a lot.. a couple around the time of the discovery of the 9500-9700 mod, and about 4 others in the last week working for a higher memory clock... none of them are getting me higher than 349, but thats still better than the original 9700np bios that got me ~320 and HOT chips.

There ARE bios's that will not work, but I haven't encountered any yet. Just stick to Mushu's and you'll be fine anyways.
09-03-2003, 05:40 PM
La1kr0diZ

Kewl, thanx. I`ll try the other bioses for my 9500. I dont want to flash the 9700 bios because the card wont show up as a 9500 in futuremark anymore, and i`ll end up with a not-too-bad overclocked 9700 instead of the world`s best 9500 :(

P.S. Wats "Mushu" ?
09-03-2003, 06:28 PM
STEvil

Mufu Bios, my bad.

http://www.ocfaq.com/softmod/bios.php
09-03-2003, 06:49 PM
G H Z

Quote:

Originally posted by La1kr0diZ
Kewl, thanx. I`ll try the other bioses for my 9500. I dont want to flash the 9700 bios because the card wont show up as a 9500 in futuremark anymore, and i`ll end up with a not-too-bad overclocked 9700 instead of the world`s best 9500 :(

P.S. Wats "Mushu" ?

Actually, you can flash to a 9700 bios and Futuremark will still show card as a 9500. It does with my Sapphire with 3.3 Infineon.

http://service.futuremark.com/compare?2k3=1239858

MUFU Bios is a custom bios made by....well..........MUFU. I just flashed my card yesterday, and am beginning testing. One of the member's here, MickeyMouse, has a Sapphire9500 with the same Infineon3.3. He said he got it to run at over 350mhz with this bios and voltmod's. I'm not having any luck yet but am still tweaking.

As for this amazing BGA re-soldering, very cool. How do you keep the other part's from de-soldering on the pcb? I would try what ]JR[ suggests to find replacement chip's.

Hynix has some 2ns BGA memory rated to do 500mhz.

http://www.hynix.com/datasheet/pdf/d...F(Rev.0.3).pdf

As far as bios'es to use on the modified memory cards. The different bios'es out there are in many cases specific to a particular memory. So just match the bios to the memory that you use on the card for starters.

Quote:

Originally posted by ALT-F13
So if we solder 2.8 ns chips on card with 3.6 ns BIOS - what will happen? In other words - if u use wrong bios (not for your memory) on r9500/9700 what will happen then?

I would use a 9700/9800 Pro bios.

The MUFU 9700Pro bios run's fine on my 9500 core and with the mem voltmod, there's no problem there either.

Damn, I wan't to try this, but cannot even see the pin's on a BGA chip. If possible, please post some pic's of the process:p:
09-03-2003, 07:58 PM
STEvil

The heat is directed at the component when doing single components.

Do r350 bios's work in r300's? I know I suggested this a while back and was pretty much told my card would die.. but the concept is interesting yet. Stuffing your old bios on a seperate boot disk with an autoexec.bat on it containing:

Quote:

@echo off
cls
atiflash -f -p 0 oldbiosname.bin

Would allow you to flash back to the old bios if the 9800 didnt work...

WARNING: You do this and screw your card over, dont blame me!! 8-)
09-04-2003, 02:14 AM
Ragnarok

dont suggest u try that :) coz it's wrong :)

to save the bios its

atiflash -f -s 0 xxxxx.bin
09-04-2003, 09:21 AM
NoStra

Damn....some guys call me crazy when I am soldering my voltmods to my gfx-card, but you guys are soldering new memorychips to it! RESPECT! keep up the good work. I love this kind of topics ;)
09-04-2003, 12:27 PM
G H Z

Quote:

Originally posted by Ragnarok
dont suggest u try that :) coz it's wrong :)

to save the bios its

atiflash -f -s 0 xxxxx.bin

He's not trying to save it. That is a script to re-flash the card in case of a bad flash. It saves you from the old PCI backup card.

btw SevEvil....

Wouldn't it be atiflash -p 0* ******.bin -f ?
09-04-2003, 01:22 PM
xigfrid

humm , just an out of topic but i prefer to ask here than asking in a new thread

have you experiment any 9700 bios onto the 9500Pro one ?

actualy i'm with the 9500Pro infineon 3.3ns bios, and my rm won't go more than 310Mhz (if more then artefacts :()

Ok , i 'm done with my request , now , i can say :

WWWAAAAAOOOOOOHHHHH nice soldering man ! hope your 9500np project will succed :)
09-04-2003, 04:51 PM
G H Z

Well after testing the "MUFU" bios thoroughly I can say in my case, it hasn't made a difference. In fact it dropped my core clock 6mhz. So I was looking over at Rage3D and found this post by MUFU himself.

Quote:

Originally posted by MuFu
Of course they're the same BIOS! The "MuFu BIOS" was just pulled off a Samsung-equipped 9700 Pro. I've never claimed otherwise and it's getting a little annoying now that I'm being held accountable for variations of it that people have taken the liberty to edit and post on various websites. :mad:

The only change I made was to provide PAL and NTSC variations but any dumbass could have done that using RadEdit.

MuFu.

LMAO, not at MUFU, but how it all get's twisted.

From Rage3D Forums post AUG 19th
09-04-2003, 06:18 PM
STEvil

yeah, twisted indeed, but the bios does work reliably 8-)

Just as a quick KNOWN bios guide:

9500np will take: 9500/9500Pro/9700/9700Pro bioses (depending on 2x4 or 4x2 ram configuration, soft/hard mod).
9500Pro will take: 9500Pro bioses.
9700np will take: 9500np/9700/9700pro bioses (depending on soft/hard moded (why would you do that to a 9700np, though? heh)).
9700Pro - Same as 9700.

9800 series - Unknown. Is the core different or is it just bios settings and core revisions that have made it better?
09-04-2003, 10:30 PM
xigfrid

thx for the fast replies, so i will have the choice between the 3 9500Pro bioses :

-Warp11 : hynix
-trick : infinion3.3
-Darkmage : infinion 3.0

so far i've tested without any difference in o/c with warp11 and trick , i don't have the balls to flash the Darkmage one, but i'll try if it can work :)
09-04-2003, 11:03 PM
NapalmV5

Anybody know where you can have this done at ?
09-04-2003, 11:25 PM
STEvil

Not likely to be a difference really, xigfrid.

Most of the effect is seen on 9500np/9700 cards with super hot ram chips..

Napalm - see if you can get a heat gun from an electronics repair shop. Other than that, possibly the tech center at a university...?

Dont do this unless you're ready to end up killing something, though.
09-05-2003, 12:13 AM
NapalmV5

What's the max temp the BGA mem chip can take ?

I would rather have this done professionally but i got dead card i can practice on.
09-05-2003, 06:48 AM
W1zzard

find a lot of radeon bioses at http://www.ocfaq.com/softmod/bios.php

napalm: check the datasheets - samsung ones are easy to find
09-05-2003, 08:59 AM
STEvil

The chips on my Ti4400 are GC2B 214's.. R9700 has GC2A 214's...

hmm...

8-)

I would say about 70c max, but I might be off.
09-05-2003, 12:15 PM
NapalmV5

http://www.samsung.com/Products/Semi...38E_GC_R14.pdf

page 10,

ABSOLUTE MAXIMUM RATINGS
Parameter / Symbol / Value / Unit
Voltage on any pin relative to Vss / VIN, VOUT / -0.5 ~ 3.6 / V
Voltage on VDD supply relative to Vss / VDD / -1.0 ~ 3.6 / V
Voltage on VDD supply relative to Vss / VDDQ / -0.5 ~ 3.6 / V
Storage temperature / TSTG / -55 ~ +150 / °C
Power dissipation / PD / 3.3 / W
Short circuit current / IOS / 50 / mA

~150°C max ???
09-05-2003, 12:42 PM
W1zzard

thats storage .. not running
09-05-2003, 01:02 PM
NapalmV5

That's the temp, not running temp.

Where's that hot air gun now...
09-05-2003, 01:43 PM
ALT-F13

STEvil. As u see, GC2B and GC2A are pretty switchable - mine works fine, although i haven't tried some serious oc yet... Just today soldered back 2 basic voltmods and have done Vref... Tomorrow will be a great day - first benches with Vapo XE:)
09-05-2003, 03:28 PM
bias_hjorth

I gotta say.. This is THE MOST Xtreme kind of modding I´v ever seen.. I mean.. U got to love it.. Killer work there ALT-F13..
Only proves the europeans are that much greater :-D-............
09-07-2003, 06:36 PM
STEvil

I was just about to looking for my heat gun, but someone messaged me on msn with some cryptic message about a beta of a big ring used to signify angels being really close to the sun...

58 hours remaining...

I'll go find my heat gun now 8-)

EDIT

Whats the difference between the GC2A's and GC2B's in the data sheet? Stick the better chips on my 9700.. hehe.
09-12-2003, 06:51 AM
Holst

Ive just finished doing some initial experiments that have turned out pretty good.

Ive just been using normall solder to put the chips back on, I think ill get a much higher success rate using liquid solder.

Ive only tested on dead cards so far, but ive got the tequnique down pretty good.

if anybody else in the UK has a potential ram donor or a card missing a ram chip can you PM me as I need some more patients (victims)
I dont want to try any upgrades just yet as it would be a shame to kill a working card (I dont want the blame) but If I can get a few succesfull repairs done ill try some upgrades (my 9700NP needs better ram)

Hehe, this is fun.
09-12-2003, 08:32 AM
KnightElite

Man, I wish I had the skillz to try something like this ;). Maybe eventually I will get there, but atm soldering two wires together is the extent of my skills, lol :D.
09-12-2003, 09:35 AM
ALT-F13

Ok, finally pics of process are here. For now only unsoldering:)

http://alt.modlabs.net/oven.jpg
Electric oven - tool we've used.

http://alt.modlabs.net/1.jpg
Chip before unsoldering

http://alt.modlabs.net/2.jpg
Close-up

http://alt.modlabs.net/3.jpg
Removing the chip - it is unseen on the photo but card is literally boiling.

http://alt.modlabs.net/4.jpg
Chip removed. Sorry for bad quality.

http://alt.modlabs.net/chip.jpg
Unsoldered chip in the holder.
09-12-2003, 10:01 AM
STEvil

I bet that makes one heck of a burn-in process for the card.. lol 8-)
09-12-2003, 12:11 PM
ALT-F13

rofl. Since we've resoldered chip cards max mem clocks raised from 380 to 400-402, but i've also done Vref mod up to 1.5V. So dunno what helped:)
09-12-2003, 12:34 PM
charlie

So after all this talk, has anyone taken 2nS ram and attached to R9800 and been successful????? BTW, Alt F13....this is one of the MOST Xtreme mods I've ever seen...very cool.
C
09-12-2003, 01:51 PM
Peen

hey guys, i got a PNY Gf4 ti4200 , and its like almost dead but not quite, i have ? marks all over the screen. Would this be a memory problem or a GPU problem? i wont to see if you guys knew, thanks
09-12-2003, 01:54 PM
STEvil

I've heard of changing chips back in the Slot 1/A days.. but that was way back when.. 8-)

Peen - core?
09-12-2003, 01:58 PM
Peen

yeah it probly is the core , unfixable
09-12-2003, 02:55 PM
BoGuS

HUmmm..., this kinda pisses me off, since i was already planning to mod my ti42, with some ti46 chips..., but whats been holding me back is that i dont have the tools to unsolder the chips, and the idea that my card is burning up in a oven is just not my kind of fun...

ALT-F13:

But still nice to see that it will work though ;O)
do you have any idea on how to unsolder the chip, with house hold equipment ?, like a regular soldering gun and stuff ?...

i think that the mem chips on the ti cards only have pin's on the sides of the chip, but not sure....

(Typically me not to dare the moves i think of..., ahh its nice with some self-petty *lol*)

cheers all the same...

B/
09-12-2003, 03:57 PM
STEvil

BGA = square
TSOP = Rectangle with side pins

They've come with bith, I believe.

Heat gun and good tweezers might work...
09-12-2003, 05:02 PM
Hentai-san

TSOP-modules should be much easier to unsolder, right? Maybe I should switch my crappy clocking modules on my MX440 :) They only do about 530 without vmem-mod, with a couple of modules from a Ti4200 they should do at least 600...

Hehe, well it's a project for the future, must find somebody who's good at soldering, my skill stretches no further than my nose. :)
09-12-2003, 05:20 PM
STEvil

unless I have them backwards in my head, tsop would be the hard ones to do, having all them little legs out the sides...
09-12-2003, 11:38 PM
CCW

Quote:

Originally posted by Holst
Ive just finished doing some initial experiments that have turned out pretty good.

Ive just been using normall solder to put the chips back on, I think ill get a much higher success rate using liquid solder.

Ive only tested on dead cards so far, but ive got the tequnique down pretty good.

if anybody else in the UK has a potential ram donor or a card missing a ram chip can you PM me as I need some more patients (victims)
I dont want to try any upgrades just yet as it would be a shame to kill a working card (I dont want the blame) but If I can get a few succesfull repairs done ill try some upgrades (my 9700NP needs better ram)

Hehe, this is fun.

I presume this technique would work on BGA modules on memory? I have KingMAX TinyBGA PC3200 that I'd be willing to swap with you Holst for some decent RAM ;)

Nice work ALT-F13. I stuck a bit about this thread on the front page about a week ago. Looking forwards to more pics and to see the card up and running!

Craig
09-12-2003, 11:48 PM
G H Z

Quote:

Originally posted by ALT-F13
rofl. Since we've resoldered chip cards max mem clocks raised from 380 to 400-402, but i've also done Vref mod up to 1.5V. So dunno what helped:)

What type of memory was the 380mhz clock? And the new 400-402mhz?

Can you tell me how hot your oven is?

Nothing else de-soldered doing it? Seem's like the cap's would blow up or somethinghttp://forums.unrealplayground.com/i...eadscratch.gif

G H Z
09-12-2003, 11:49 PM
Ragnarok

Quote:

Originally posted by STEvil
unless I have them backwards in my head, tsop would be the hard ones to do, having all them little legs out the sides...

well with BGA u cant even get to the soldering pads with normal soldering iron :D?

as least tsop u can use remove it easily a special clamp style soldering iron
09-13-2003, 11:40 AM
STEvil

Thats the hard bit, getting the clamp style soldering iron 8-)

With an oven or heat gun you just heat up the chips and pull them off, heh.
09-27-2003, 04:04 AM
VoRtAn_MaDgE

YOU'RE DA MAN ALT-F13 if we can call modd to anything that's DA THING :)
09-27-2003, 11:43 AM
La1kr0diZ

Ok, guys, 2.5ns are already on my 9500np. Check dis out

http://laik.modlabs.net/2point5_9500_big.jpg

Its not working even 600 rite now but i hope changing bios would help. Also the memory is underpowered because 3.6 used to work at less voltage. I`ll do both mem voltmods and try making some results.
09-27-2003, 11:50 AM
QerryTerry

Looks schweet!!!

what speed had the Ram you had on this card before?

Where did you got these 2,5 ns chips from?

Are there some photos from the mountingprocess ?

QT
09-27-2003, 12:31 PM
La1kr0diZ

There are photos of the mounting on previous pages of this thread.

It had 3,6 Infineon before. Now it has Hynix 2.5 taken from FX5600 ultra...
09-27-2003, 12:55 PM
QerryTerry

Yeah i saw them, but more aren't bad.
You had also used this grabber? Or a different device ?

QT
09-28-2003, 10:06 AM
La1kr0diZ

The same one, though these were soldered back using the heat gun not the oven.
09-28-2003, 01:09 PM
berkut

Hope you dont have any so called cold joints, that would be crap :|

looking @ your mods im thinking of ordering these DDRII 1.6ghz chips from samsung and mounting them on my 5800 nu ;]
09-28-2003, 04:10 PM
Stang_Man

that's crazy man, good luck with overclocking them chips :)
09-28-2003, 04:24 PM
shray

DAmn, Only If we could make the perfect combo. Raddy 9800 with high clocks, put together with some Great RAM ns. We'd hit the top of the orb!
09-28-2003, 04:29 PM
shray

Oh by the way when you solder it back in, (the other chip of memory) How do you know which way it goes etc?
09-28-2003, 04:58 PM
Asniper

now this is one xtreme mod, gotta keep updated on this.
09-28-2003, 05:06 PM
saaya

wow it works? :eek:

YOU DA MAN La1kr0diZ! :toast:

where did you get that heatgun from? how high did you get the 2.5ns chips on the 5600u with how much volts?

how many pins do the bga chips have btw?

how hot did you get the card more or less to get the chips off? and how did you get them on again? same thing? put them on and heat it up or something else?
09-29-2003, 12:32 AM
Holst

I think they have 186 balls from memory.

I heated them and lifted them up with a bit of aluminium I bent into shape.

The hard bit is getting the solder even onto the PCB or chip, ive not yet fould a good way of doing this. I think liquid solder will be the answer but I havent tried it that way yet.

I held the chip in pliers and heated it till it stuck back on. This isnt ideal but I have a steady hand, I can probably make a jig to hold the chip in place if I was going to do more.

I took a chip off of and onto a 4200 last week, but I dont think id be able to do 8 in a row untill I sort out the solder.
09-29-2003, 02:22 AM
saaya

wow, id love to do this...
11-02-2003, 11:39 AM
crotale

I've got an almost dead FX5900 card with 2.8ns modules on.
My guess is one of the memory modules are dead or something. During post the card work, but there are some vertical lines with diffrent colors.
This happend after a faulty vmem mod.

I guess some of the modules are fine... and the core... So if someone is interested..?
11-02-2003, 11:53 AM
La1kr0diZ

Vertical lines are certainly a memory chip burnt. You can replace the chip to get it back to work.
11-02-2003, 01:39 PM
STEvil

Should just solder on socket clips for the ram then you can get ram with pins and change it at will...

Would be nice on a GPU, too 8-)
11-02-2003, 03:09 PM
Soulburner

Quote:

Originally posted by crotale
I've got an almost dead FX5900 card with 2.8ns modules on.
My guess is one of the memory modules are dead or something. During post the card work, but there are some vertical lines with diffrent colors.
This happend after a faulty vmem mod.

I guess some of the modules are fine... and the core... So if someone is interested..?

How does yours have 2.8? They are supposed to have 2.2.

Unless yours is the value or "lite" version.
11-04-2003, 03:40 AM
crotale

Quote:

Originally posted by Soulburner
How does yours have 2.8? They are supposed to have 2.2.

Unless yours is the value or "lite" version.

True, it is a LX version (Leadtek Winfast)
11-04-2003, 12:31 PM
Doomeous

I have a question for you guys... I have an R9700pro that i pushed too far.. I now have the verticle lines syndrome apon boot up, you can see some of the screen, but for the most part, pushing the voltage too high on the mem burned something out (prob the mem chip). How can one tell which chip it is, if he were going to replace it? Second question, who can tell me where to buy the chip, 3rd question, who wants to do it for me eheh..

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