HD 4850 system won't start

[ToxinX]

Hey guys I'd appreciate some help here.
I have just come into posession of a Sapphire HD 4850 512MB; its the version with the dual slot heat sink.

Now my rig is/was a standard Lenovo 3000 H100 series. It had 512 MB RAM and a 450W SMPS. I had asked to not play with the OEM PSU as they suck big time but apparently the smartass decided to install it without adding additional RAM or using a good PSU. My dad tried it out in his office but it worked there; but when i plugged it in at home; the system just won't start up.

He took it there again and apparently the system works without the GPU. He tried the GPU on in another computer and then that stopped booting.

BUT it did work that one first time when it was first plugged in.

The assemblers here have hardly ever seen a dx 10 card; let alone install one. The fact that he was all gung-ho over installing it without enough memory and on an OEM PSU shows that he probably handled a 6xxx last.

NOW, what i need to know is:

Q1. Should I go for a cooler master extreme power 500W PSU? Will that help fix the issue?

Q2. Did something damage my GPU? (Please say no!)

[shahid khan]

Hi
As you said you have tried that on another PC but I didn't worked there also. Then I think GPU got damaged but have you try again by adding additional RAM?

[Marthaz]

Q1. Should I go for a cooler master extreme power 500W PSU? Will that help fix the issue?

Q2. Did something damage my GPU? (Please say no!)

I think this PSU will do the trick. Or else you can go for 500+ watt power supply which may solve your problem. I dont think the graphic card is damaged.

[Team Leader]

I think the reason is only one, your ram is falling low to the requirement of Sapphire HD 4850 gfx card. I have read on the web that the minimum ram requirement for this card to function smoothly would be 1 GB. So upgrading ram will solve your problem IMO.

[kiLLer]

Ram upgradation is necessary. Also I think a 500+ watt PSU will be good for that GPU. Also you might want to check the temps for the GPU as well as for CPU coz higher temps of any of these can be a problem. To check the temperatures, you can use temp monitoring utiliies like GPU-Z for the gfx card. Core Temp can be used for knowing CPU temps. Use intel test burn to stress cpu and check temps to find whether the processor is shutting down to prevent damage.

And yes, your GFX card is not damaged I can tell for sure.