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T61 GPU chips compatibility

T60/T61 series specific matters only
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GunslingerThink
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T61 GPU chips compatibility

#1 Post by GunslingerThink » Tue Feb 26, 2019 3:33 am

So I want to replace the graphic chip of my T61. It is originally Quadro NVS140M so it's some G86 chip. I know that all chips older than mid-2008 are no good, but I was wondering which G86 model numbers I can use other than exact the original model (I think it's 700-something). Can I use any of G84 chips on this motherboard?
  • T61 NVIDIA Quadro NVS 140M SXGA+
  • T61 Intel GMA X3100 XGA

ajkula66
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Re: T61 GPU chips compatibility

#2 Post by ajkula66 » Tue Feb 26, 2019 4:11 am

GunslingerThink wrote:
Tue Feb 26, 2019 3:33 am
So I want to replace the graphic chip of my T61.
You have re-balling equipment ?
Can I use any of G84 chips on this motherboard?
That would be an exercise in futility, since all of them suffer from the same defect...
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GunslingerThink
Posts: 35
Joined: Mon Apr 16, 2018 6:17 am
Location: Siberia, Russia

Re: T61 GPU chips compatibility

#3 Post by GunslingerThink » Tue Feb 26, 2019 4:52 am

ajkula66 wrote:
Tue Feb 26, 2019 4:11 am
You have re-balling equipment ?
No, but I'll find someone who has.
ajkula66 wrote:
Tue Feb 26, 2019 4:11 am
That would be an exercise in futility, since all of them suffer from the same defect...
Even the newer ones? I've seen pictures of G84 with production date up to 2012. What about G86 then?
  • T61 NVIDIA Quadro NVS 140M SXGA+
  • T61 Intel GMA X3100 XGA

Screamer
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Re: T61 GPU chips compatibility

#4 Post by Screamer » Tue Feb 26, 2019 5:36 am

GunslingerThink wrote:
Tue Feb 26, 2019 3:33 am
but I was wondering which G86 model numbers I can use other than exact the original model (I think it's 700-something).
The G86-740-A2? If I am not wrong, that is the Quadro NVS 140M.

I suppose that the G86-731-A2 and the G86-730-A2 can be installed to replace a dead G86-740-A2. Take this with a grain of salt, though. I have no idea if they are electrically compatible.
GunslingerThink wrote:
Tue Feb 26, 2019 3:33 am
Can I use any of G84 chips on this motherboard?
This is a G86 motherboard, right? In that case, no. There is a specific resistor configuration that has to be present on the motherboard, in order to make a G84 graphics chip function on a G86 motherboard.

Any G84/G86 graphics chip that has a date code of 0831 and above are guaranteed to be free of the low-quality underfill, but please be aware that they may be relabeled for no apparent reason (RealBlackStuff has seen some of them).

RealBlackStuff
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Re: T61 GPU chips compatibility

#5 Post by RealBlackStuff » Tue Feb 26, 2019 8:33 am

If your T61 is a 14.1" 4:3 (non-widescreen), it may be cheaper (and definitely easier)
to replace the motherboard with a 44C3924 as explained here: https://www.theboardroom.info/t61motherboard.html
Forum member TuuS has these in stock.
Lovely day for a Guinness! (the Real Black Stuff). And pigs CAN fly!

wujstefan
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Re: T61 GPU chips compatibility

#6 Post by wujstefan » Wed Feb 27, 2019 3:49 am

RealBlackStuff wrote:
Tue Feb 26, 2019 8:33 am
If your T61 is a 14.1" 4:3 (non-widescreen), it may be cheaper (and definitely easier)
to replace the motherboard with a 44C3924 as explained here: https://www.theboardroom.info/t61motherboard.html
Forum member TuuS has these in stock.
Way cheaper. Unless your re-balling cooperator volunteers.
I have found trouble sourcing 14,1 16:10 nvidia mobos though.
Dailies:
X230 - travel / garage
W700 - workhorse
R600 (R500 mobo inside R60 chassis) - daily
600x w/i7 board - thing to admire
Collectibles:
T43, Z60t, G41, R30, R50e, R61i, A31p, T23
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R52p, T22, A22m, R40, T30, Z61m

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