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Upgrade from 8400 gs to gt 640

Last response: in Graphics & Displays
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Hi, I have a very important to ask . My cpu is using msi 8400gs 512mb (2008) and now i want to upgrade it to gigabyte gt640 2gb ddr3 .But i do not know that my motherboard support or not and i fear that it no work . please help me because it make stress now ... Here is my pc information motherboard : msi boston 1.0 / PCI-E 1.1 processer : core 2duo e4600 2.4ghz ram : 3gb ddr2 window vista 32bit sp2 graphic card : nvidia 8400gs 64bit 512mb (msi) HELP !!! I scare that GT640 is use PCIE 3.0 and my is PCIE 1.1 and it cannot work as all PLEASE HELP ME T.T

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All graphic cards are backwards compatible. However, I don't think upgrading your GPU will make a difference. Your CPU, and computer for that matter, is pretty old. If you have the 640, that would be the max CPU that might be able to run with the c2d 4600. Honestly, I would look at doing a complete overhaul.

the true story is like this. today i went to the shop and i borrow my cpu too to upgrade my graphic to GT640 , however i let the workshop's men help me to install it , but after the installation done , the problem came out the cpu was produce some noisy soud like (tis..tis...tiss) repeat and repeat and non stop untill switch off the power.

hey I plan to build another new cpu in this Xmas as well and this also my first time

here some information above it ,

MSI 970A-G46
AMD FX6100 3.3ghz
Kingston 1800mhz 8gb
Powerlogic magnum pro 535 max power 1000w (PSU)
WD 1.5TB
Samsung Internal 24X ATAPI DVD Writer SH-224BB
Aerocool Strike One PC Casing
Acer LCD Monitor S231HL 23-Inch LED 1920x1080


And a biggest problem is should i buy a new Sapphire HD 7750 2GB DDR3 or use back the GT640 ?
Can this works without facing any problem ??
Graphics card Master

The power supply market is rife with low quality units that do not deliver what they promise in terms of wattage. These low quality units also deliver very inconsistent voltages, which can cause damage to your components. The worst case scenario is if you overstress these low quality power supplies is that they will explode and take other components with them.

Powerlogic is not a reputable power supply brand. Any "1000 Watt" unit that sells for cheap is going to be a very low quality unit that can probably only deliver 500 watts at best.

The power supplies suggested to you above come from much more reputable brands. They deliver what they promise, and are much higher quality parts that are much less likely to fail on you.
Graphics card Authority

as prototype mentioned earlier you will need
corsair cx 430 psu
or antec vp 450 psu.
first thing you must do now is change the psu to the one mentioned above as soon as possible and then try installing the gt 640 along with the latest drivers from nvidia and see whether your pc boots up.
i believe your current cpu e4600 should have no trouble running a gt 640 at all but first upgrade your psu and then try installing the gt 640. also dont forget to first un install the existing nvidia drivers and do a clean re install
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