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jlWANG
What's DOS?
Posts: 1
Registered: ‎05-14-2016
Location: US
Views: 2,600
Message 1 of 25

M700, M800, M900 SFF: graphics upgrade: GT 1030, GTX 750 Ti, 1050 Ti; power supply

Hi this is my first question here.

I just bought a M900 SFF (i7-6700) which has a 210W PSU. I want to get a MSI 750ti low profile GPU but worried about the lack of power so Im considering upgrading the original PSU.

However, the motherboard has a Lenovo style 10-pin ATX and another 4-pin. So far I couldn't find any PSU that matches the motherboard. I would really appreciate some help!

 

Also, I tried using the 750ti LP with the current 210W PSU. It worked fine with Would of Warcraft, but I havn't try other programs that might have higher power demand. Do you think I should keep looking for a PSU upgrade plan or is it actually just fine with the 210W? I used a PSU calculator and for my current system (with 750ti) it gave a 205W estimation, which is just under 210W. 

 

I've read many similar posts here on this problem, but found no clear solution. I bought this partly for the advertised 'potential for upgrade', which now seems to me a lie because I can't even upgrade a PSU???

 

Mod:  edited Subject line to add other system types that can use the same power supply and graphics cards

Community SeniorMod
Community SeniorMod
Posts: 2,817
Registered: ‎12-31-2011
Location: US
Views: 2,576
Message 2 of 25

Re: M900 SFF upgrade PSU

Welcome.    There's a power connector adapter for ATX standard to Lenovo, avail. on Amazon and tech supply sites.   Can you look to see if that would work with your system?   Thx,  Al.

SeniorGuru
Posts: 2,014
Registered: ‎06-13-2013
Location: US
Views: 2,565
Message 3 of 25

Re: M900 SFF upgrade PSU

If you're concerned, how about canceling the order for the SFF and go for the Tower (same price)?

 

The tower shows a 400W PSU vs. the 210W PSU in the SFF. That way you won't have to bother with an after-market PSU, and would also open up additional full-size but similarly low-power graphics card options for you, such as the modestly priced EVGA GTX 750ti SC that has slightly better performance than the MSI low-profile version of the card you are talking about at the moment.

 

Is SFF a requirement?  Or would Tower be acceptable?

 

I've put that EVGA card in an M93p tower which came with 280W PSU, and it works flawlessly.  Obviously with a 400W PSU in the M900 it would also work flawlessly.  Those GTX 750ti cards are low-power consumers.

phughes200
Blue Screen Again
Posts: 20
Registered: ‎07-05-2015
Location: NC
Views: 2,543
Message 4 of 25

Re: M900 SFF upgrade PSU

EBay has plenty of sellers for adapters. Some US sellers as well as China. You can also buy one at Amazon.

The drawback to the SFF PS is the limited options. You will probably be limited to an 350W max PS (assuming same format as the M73 PS).
spgs-itsupport
Paper Tape
Posts: 5
Registered: ‎08-12-2017
Location: GB
Views: 2,050
Message 5 of 25

Re: M900 SFF upgrade PSU

The format of the PSU is completly DIFFERENT!

 

It is LIKE TFX, but few millimiters less: 81.5(W) X 150(L) X 65(H) mm

There is nothing else on the market that would fit

 

http://www.overtek.co.uk

 

CAN create power unit using Seasonic innards & original power enclosure

 

 GTX 750ti works (I have not stressed it in any way) on stock 210W power in M800 SFF

 

Otherwise one could use nVidia P400/P600/P1000

yijaey
Paper Tape
Posts: 6
Registered: ‎08-31-2017
Location: KR
Views: 1,947
Message 6 of 25

Re: M900 SFF upgrade PSU

is it ok to use aftermarket psu with 300w or 350w with the case open?

and it won't fry the mobo?

 

one more thing that worries me is that the pcie's max watt support is written 35w while the latest low profile gpu - gtx 1050ti - is 75w. (300w psu recommended)

 

do you think as long as the psu supports the power, the existing mobo+new gpu setup would work?

spgs-itsupport
Paper Tape
Posts: 5
Registered: ‎08-12-2017
Location: GB
Views: 1,919
Message 7 of 25

Re: M900 SFF upgrade PSU

I see somebody does not understand current values

So please read: http://www.rapidtables.com/convert/electric/Watt_to_Amp.htm

 

Just because you put higher wattage PSU it does not mean it will fry components. They still revceive the same VOLTAGE, just amperage can be higher.

 

No, you can NOT physically fit TFX power supply in SFF M7/8/900 box (even without closing the case)

 

Maybe short FlexATX with mod bracket would do, but they are expensive & probably way noisier.

 

nVidia GTX 1030 works perfectly fine on stock 210W PSU

yijaey
Paper Tape
Posts: 6
Registered: ‎08-31-2017
Location: KR
Views: 1,862
Message 8 of 25

Re: M900 SFF upgrade PSU

thanks for your reply

 

i was suspecting since in the psref (http://psref.lenovo.com/syspool%5CSys/PDF/ThinkCentre/ThinkCentre%20M900%20SFF/ThinkCentre_M900_SFF....)

it clearly says "Slot 1: Low Profile, PCI Express 3.0 x16 (45w max)" lenovo might have done something on their mobo to limit the max watt?

 

and of course i won't fit "inside" but is it possible to put the psu outside the frame and connect the cords?

Community SeniorMod
Community SeniorMod
Posts: 2,817
Registered: ‎12-31-2011
Location: US
Views: 1,906
Message 9 of 25

Re: M900 SFF upgrade PSU

 

nVidia GTX 1030 works perfectly fine on stock 210W PSU

 


 Have you actually tested a Gtx 1030 in an M900??

 

Because it's not on the supported adapters list in the readme for the latest Win 10 driver for Nvidia from Lenovo

 

f-m900 nvidia adapters.pngReadMe for NVIDIA Discrete VGA Driver

And if the goal is to maximize graphics performance, then a GTX 750 Ti (which is known to work in a M900) would still be a better choice than a 1030.  I imagine that there's a fair few of these for resale from people upgrading to a 1050. 

spgsitsupport
Fanfold Paper
Posts: 17
Registered: ‎08-05-2014
Location: GB
Views: 1,869
Message 10 of 25

Re: M900 SFF upgrade PSU

Of course I have tried GTX1030 (which is rather very new card, hence probably why not on the list) in M800

But works very well, with very little power demands (way less then 750Ti)

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