Logo09

ok, is this psu enough for this system? zalman 750 watt
http://www.newegg.com/Product/Produc...82E16817379006

8gb mushkin 1066 ram
ati radeon hd 4670
foxconn a79a mobo
antec 300 case
velociRaptor 300gb hdd
lg 20x dvd burner
amd phenom quad core black edition 3.0ghz

oldjoe

That PSU would be OK but this one is cheaper and a very high quality unit:
http://www.newegg.com/Product/Produc...82E16817139006

Tumbleweed36

The Corsair listed is about three times better than the Zalman. That is what I would put in that rig if it were mine.

Logo09

What is so much better about it? The only difference i saw was that it wasnt modular and all the amps were on a single rail and the zalman had four rails? Is it better just to have a single 12v rail?

Tumbleweed36

Yes, IMHO, it is better to have the single rail because the raw power is greater without the spread over rails.

In addition, it has a 140mm fan (Zalman has 120mm) in it which is quieter and it blows more air to cool your rig with the larger fan. The Corsair is one of the quietest (along with Seasonic) PSU's on the market.

In addion, Zalman PSU's normally don't use as high quality capacitors as Corsair does. That is an important consideration especially as the PSU gets some age on it.

This of course is your choice, but if it were my choice to make, I would purchase the Corsair. I honestly can't say that the Zalman won't work for you, it most likely would with the specs it has listed, but wanted to direct you to the best supply for the dollars you spend on it and that would IMHO, be Corsair.

Logo09

Ok, thank you. I think i will go with the corsair. i didn't realize zalman used cheap parts in their products... i have only had expericence with their heatsinks and they work pretty well.... what do you think of the heatpipe cooling in the zalman? do you think it actually works well?

linderman

Zalman power supplies are above average for sure; but I wouldnt trade an equal sized Corsair for one.

Zalman cooling products are top dogs

linderman

1066 memory only runs at speeds higher than 800mhz if you are overclocking


the cpu FSB speed is linked to the memory speed

so; if your cpu is working on a 400mhz cpu frequency the ram is running at 400 x 2 = 800mhz

if you increase your cpu host freq for example to 450 your memory will be running at 450 x 2 = 900 mhz

many fellas like under clocking which means they would set the cpu freq to 500 mhz which would put the memory at 1000 mhz >>>>>> then your ram is running at full speed


so in summary .......... 1066 memory doenst really kick in until you get into the upper levels of overclocking

we normally suggest 1066 memory because its more stable than 800mhz ram when overclocking at any level ............ not because we are actually trying to hit 1066mhz

linderman

see one post above

Logo09

Hey could you also help me with my ram? I dont know how to do any overclocking but the 1066 mushkin ram i bought only runs at 800mhz on my foxconn a79a mobo. Not really sure what to change to make it run at its rated speed...

Logo09

So should i just set it to 500 and be happy with 1000mhz?

linderman

NO; it aint that easy .......... start a thread in the overclocking section

Logo09

ok... thanks a ton linderman