4870 power?

[ranij93]

Hello my name is Rani and i have a 4870 HD 1GB and i have a 560W power supply want to ask if its enough? and i would like to know if there is any way you can add 2 power supply's to 1 system with out having 2 mother boards LoL : ) ?


Thanks

 

[TheViper]

That's enough power. Can you check the 12v rails? It's listed on the side of the PSU. Just add up the amps on each 12v rails listed.


And yes you can use 2 PSU's on one computer though it would likely be overkill for your system since 560 watts is enough.

 

[KidHorn]

In theory you should be able to use 2 power supplies, but I would be hesitant. All the electronics on the computer are connected and I could imagine the possibility of weird things being more likely if your juice is coming from 2 different sources.

Generally speaking a 560w should be able to handle a 4870, but it depends on how many watts are required to drive everything else.

 

[ranij93]

I have more questons.. my 4870 runs sooo bad.. i had a 8800GT in this system and it ran better then my 4870 what can it be.. I know its a poor system. bad mother boaard and cpu. Intel e4300, 2gb DDR2 ram, ati 4870hd 1gb, motherboard: FJ Ms-7293VP.

But the wierd thing is the 8800GT ran better then the 4870??? thats kinda wierd :/ in my toughs? FJ Ms-7293VP. i gota get new motherboard. but why can the 8800GT run better then 4870 if its not the power?

 

[RetiredChief]

I also have the 4870 (512 ver), C2d OCed to 3.2 GHz, 4 HDDs, and 2 DVD burners and my MAX power consumption is only approx 300 Watts. Any more it is as TheViper said - it is more about the Power available on the +12 V Rails - AND the quality of the PSU.

Concur with kidhorn on using two PSUs in one computer - IT is OK as long as you DO NOT connect PSU1 +12 V1 to the same point as PSU2 +12 V (Same same for other Voltages).
Ex: If you had two power connectors on a GPU card, and you wanted to connect PSU1 to one connector and PSU2 to the other you would need to verify that they are isolated from one another (ie ohms check +12 V on connector 1 to +12 V on connector 2. Grounds pins are OK. (Never parallel PSUs)

 

[ranij93]

I don't fully understand redtiredChief. my english isn't so good. But do you think it is the power? or the mainboard is too weak? and i would like if u could tell me how to use 2 PSUS in easyer language But thanks!

 

[RetiredChief]

As KidHorn said - Not a good Idea. You need to understand a little more electronics as what I said is not so much a question of english - it's more about knowlege of Electronics

The first thing I would do is down load CPUID HWmonitor and take a look at your Voltages at both idle and max load. For mak load you could download furmark and run it. As long as your +12 V does not drop below 11.5 and your +5 V does not drop below 4.78 V under max load your single PSU is fine and you will not gain anything (except the Chance to distroy your MB, and or PSU)

If voltages are dropping, you would be better off getting a new, quality PSU (550 to 650 W range)

Not into gaming - might want to look at some benchmarks rating the different GPUs

 

[ranij93]

Heres a picture of the hardware monitor there is no that shows 12 volt :/


thats a picture of mine and some other once.

 

[TheViper]

1st, do no use 2 PSU's. It's dangerous to you and your system if you are not very familiar with electronics.

2nd, your HD 4870 may just need a driver update. Download and install the newest driver from here:
http://support.amd.com/us/gpudownload/Pages/index.aspx

 

[RetiredChief]

The HDware monitor on left (+5V = 4.63 V) is LOW, my min for +5 V is 4.75 Which is the min voltage for TTL lodgic (CMOS is lower). If you can not find a program that will properly display your voltage (Have you checked the manuf website), the only other option is to use a voltmeter. A cheap voltmeter can normally be found for $15 -> $20 and is not difficult to use. You would set it to measure DC Voltage. Insert the black lead into the Black wire on a molex connector. The red lead from the meter is then inserted into the Yellow and then the Orange socket to measure the +5 and the +12 V.

If this is to much - Then I recommend you look at some reviews of PSU's an get one that is recommended / rated above average.

 

[ranij93]

1st, do no use 2 PSU's. It's dangerous to you and your system if you are not very familiar with electronics.

2nd, your HD 5870 may just need a driver update. Download and install the newest driver from here:
http://support.amd.com/us/gpudownload/Pages/index.aspx

I have tested 2 versions of drivers. and i have the newst drivers. but i guess its the Motherboard that has some marks becaue i get the same performence of my ASUS EAH 4870 1GB as the XFX 8800GT XXX edition. i did a new post on motherboards now im serching for a new mother board that supprts Core 2 duo and Quadcore.

 

[splinter09]

I HAVE EXACTLY THE SAME PROBLEM LIKE YOURS...ALSO WITH THE 4870....JUST GIVE ME YOUR EMAIL SO WE CAN FIND SOMETHING OUT.......!!!