im having problems with 7970 hd

[ben2299]

I just bought a hp Z400 from a guy who builds good pcs.
Specs are
8 GB ddr3
Intel xeon 4 cores 8 threads 3.06 GHz
7970 HD
485 watt psu, built by hp, equivalent to 560 watt
I have two problems
The first one is that my ram is 1600 MHz, but I'm only getting 1067 MHz
Second is that I'm getting horrible frame rate when I play not very demanding games like farming simulator 2015. The problem starts whenever I turn the settings on my gfx card up, like standard 3d settings.... I need help, the drivers are all up to date. The temperature is good, and the whole time I'm playing games with horrible fps, my CPU stays at 14% usage, ram 30-46% usage, gfx card 30-70% usage

 

[i7Baby]

Talk to the guy who built the PC.

A HD7970 needs 550W from a good quality power supply.

What make and model have you got?

What motherboard is in the PC?

What model Xeon?

 

[ben2299]

I'm not sure of the make and model of my psu, its the stock psu, all it says on the box is 80+ bronze
I'm not sure which motherboard it has, I know its 1366 socket
W3550 xeon, there is no chance of bottleneck.

 

[i7Baby]

Try another power supply.

 

[ben2299]

I can't, hp welds the psu to the case for their models. It would be impossible, and the guy I bought it off of says that the psu shouldn't create game lag, just would kick me out of the games. What's your opinion i7 baby

 

[i7Baby]

I think he's full of you know what. Can you get your money back?

 

[ben2299]

No, but he would replace the psu for me, with a 750 watt psu, how can I get him to believe that the psu doesn't kick you out of games, and that it creates lag

 

[i7Baby]

What 12v, 5v and 3.3v readings you getting from the PSU? Check in bios or motherboard utility software or HWInfo - Sensors.

 

[ben2299]

Ok thx for your help i7 baby, it was a problem with the gfx card

 

[i7Baby]

So your ram is at 1600 now?

What card problem?

 

[ben2299]

For some reason it was under clocked 150 MHz instead of 925 MHz, and the ram problem I haven't solved, but I'm getting a technician to look at that tomorrow, he's my uncle so he'll do it for free

 

[i7Baby]

OK.