Lenovo upgrade help.

Roenoke72 · Mar 14, 2014

Hello, I bought a Lenovo H420 7752-4YU
Desktop PC - 2nd generation Intel Core i5-2320 3.0GHz, 6GB DDR3,
1TB HDD, DVDRW, Keyboard/Mouse, Windows 7 Home Premium 64-bit.

Recently I have found the graphics card to be lacking the power to play certain games and I need to upgrade it. I went to Lenovo's site and spoke to a representative who informed me that there were no upgrade options for this computer. Of course he then immediately attempted to get me to buy a new one. While surfing for after market solutions and real computer techs I ran across this site. I found some threads that were close to answering my question about whether or now I could upgrade this pc. However, accessories can be expensive and I would like to be more certain.I understand i would also need to upgrade the power supply currently (280w). All I need is more specific information. Which PSU and which graphic cards are compatible so I don't buy the wrong thing. Thank you in advance for anyone who takes the time to help me out.
~Chris

BnG · Mar 14, 2014

What is your budget? A gtx 760 will run any game on high/ultra but will cost you around 220-240$ Depending on your budget, I will try to find a suitable GPU. For the PSU: Corsair/ Seasonic/ XFX are realiable brands. Try to go for a quality 80+ bronze (at least) PSU.

Sharphawk1234 · Mar 14, 2014

Basically you can put most aftermarket graphics cards into your pc the only issue you may have is the really high end ones being too long. You will need to upgrade your psu as even the gtx 750 which uses very little watts need a 300w psu. So in regard to the graphics card, I would recommend the gtx 750ti if you want a pretty substantial boost although it will not max out everything. It will be able to play bf4 at med-high settings at 1080p to give you a better understanding. If you wanted a bigger boost you could go with gtx 760 which will max out almost every game on the market but will cost about $100 more than the 750ti. In regard to your psu, depending on what gpu(graphics card) you choose, is how you should make your decision on how many watts you need. If you want to go all out and get a gtx 770 for example, you would need about 600w psu. For the 750ti at least 300w and for the 760 about 400-450w.

BnG · Mar 14, 2014

Sharphawk1234 :

Basically you can put most aftermarket graphics cards into your pc the only issue you may have is the really high end ones being too long. You will need to upgrade your psu as even the gtx 750 which uses very little watts need a 300w psu. So in regard to the graphics card, I would recommend the gtx 750ti if you want a pretty substantial boost although it will not max out everything. It will be able to play bf4 at med-high settings at 1080p to give you a better understanding. If you wanted a bigger boost you could go with gtx 760 which will max out almost every game on the market but will cost about $100 more than the 750ti. In regard to your psu, depending on what gpu(graphics card) you choose, is how you should make your decision on how many watts you need. If you want to go all out and get a gtx 770 for example, you would need about 600w psu. For the 750ti at least 300w and for the 760 about 400-450w.

750ti needs at least a 400w PSU - 760 at least a 500w PSU. If you go any lower, you will start heading into the danger zone.

Roenoke72 · Mar 14, 2014

Budget isn't so much the concern as not getting compatible parts. I think I now have enough information to start shopping. Thanks guys.

Roenoke72 · Mar 14, 2014

Here is what I have found. What do you think, Am I good to go?

159.99$ Newegg....

EVGA 02G-P4-3751-KR GeForce GTX 750 Ti 2GB 128-Bit GDDR5 PCI Express 3.0 Video C

Model
Brand
EVGA
Model
02G-P4-3751-KR
Interface
Interface
PCI Express 3.0
Chipset
Chipset Manufacturer
NVIDIA
GPU
GeForce GTX 750 Ti
Core Clock
1020MHz
Boost Clock
1085MHz
CUDA Cores
640
Memory
Effective Memory Clock
5400MHz
Memory Size
2GB
Memory Interface
128-Bit
Memory Type
GDDR5
3D API
DirectX
DirectX 11.2
OpenGL
OpenGL 4.4
Ports
HDMI
1 x HDMI
DisplayPort
1 x DisplayPort
DVI
1 x DVI-I
General
3D VISION Game Ready
Yes
Cooler
With Fan
System Requirements
400 watt or greater power supply with a minimum of 20 amps on the +12 volt rail.
Dual-Link DVI Supported
Yes
Card Dimensions
6.70" x 4.38"

79.99$
---------
---------
Corsair CX600 600W ATX12V v2.3 80 PLUS BRONZE CERTIFIED
Active PFC Power Supply Unit

CX Series power supply
Technical Specifications

Ultra-quiet 120mm fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature
80 PLUS Bronze certified
0.99 Active Power Factor Correction provides clean and reliable power
Complies with ErP Lot 6 European Union standard for low standby power consumption
Universal AC input from 90~264V — No more hassle of flipping that tiny red switch to select the voltage input!
Extra long fully-sleeved cables support full tower chassis
Dedicated single +12V rail offers maximum compatibility with the latest components
Over-voltage and over-power protection, under-voltage protection, and short circuit protection provide maximum safety to your critical system components
Three year warranty and lifetime access to Corsair’s legendary technical support and customer service
Supports the latest ATX12V v2.3 standard and is backward compatible with ATX12V 2.2 and ATX12V 2.01 systems
Safety Approvals: UL, CUL, CE, CB, FCC Class B, TÜV, CCC, C-tick
Dimensions: 5.9"(W) x 3.4"(H) X 5.5"(L); 150mm(W) x 86mm(H) x 140mm(L)
MTBF: 100,000 Hours

BnG · Mar 14, 2014

The corsair PSU's are great in my opinion. A 600w PSU is a bit overkill for 1 750 ti though, 500 w is more than enough! If you buy the 760, you will also see quite a big performance increase =) Definately worth considering saving another 60$! (for the 760 the 600w PSU would be great)

yuzgen · Oct 21, 2014

When you google "m91p gtx 750 upgrade", this page shows up. I wanted to post this and make this info available to the masses.

I bought a second hand Lenovo M91P SFF with i5-2400 and 2x2 GB DDr 1333 Mhz, Lenovo labeled Hynx RAMs. Replaced its HDD with Kingston HyperX 3K 120GB and added a TL-WN951N PCI wi-fi adapter. No more changes to the hardware.

This is the exact card I bought:
GeForce GTX750 OC Slim 2GB
http://www.galaxytech.com/__EN_GB__/Product2/ProductDetail?proID=539&isStop=0&isPack=False&isPow=False&isSSD=False
Unfortunately, the card comes without a low profile bracket, so you need from another card or order a new one.

This is the same card, but with only 1GB RAM. KFA2 is Galaxy's brand for the EMEA region:
KFA2 GTX 750 OC
http://www.fudzilla.com/home/item/34563-kfa2-gtx-750-oc-reviewed
Especially this review helped me so much. Check the whole system power draw. Just 172 Watts under load with their test system:
http://www.fudzilla.com/home/item/34563-kfa2-gtx-750-oc-reviewed/34563-kfa2-gtx-750-oc-reviewed?start=5
M91P with i5-2400 should draw around 10 Watts more, because i7-4770K's maximum TDP is 84 Watts, while i5-2400's is 95, though I never saw i5-2400's power draw over 60 Watts in HWMonitor.

Yes, the card takes two slots and you can't use the PCI express slot in M91P SFF, but it's worth it. I ran FurMark for 15 minutes with no issues. Galaxy card's fan never exceeded 50% and never got loud. In idle, it turns at 40%. The temperature never exceeded 79°C. By the way, I read a review in which they told the Ti version was very loud. In the review I linked above, they told GTX 750 version was very quiet. They were right. It's quiet.

Long stroy short, M91P SFF's 80%+ efficiency FSP power supply (17A on 12V), older than two years old with the capacitors aging, can handle GTX 750 easily and the system stays quiet, even under heavy loads. Not silent though, i.e. you can hear it in a silent room, i.e. night time.

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