20pin+7800+whoops=:[ help asap please

S

StOCK

Limp Gawd
Joined
Mar 16, 2004
Messages
168
so i bought a new system. the two important parts right now are the mobo[EPoX EP-9NPAJ], videocard [7800gtx] and the power supply http://www.newegg.com/Product/Produ...N82E16817153006

i'm a dumbass and picked the wrong one. the power supply is 20 pin and the mobo is 24. will this cut it with my setup? i think it comes with a pcie power plug to go into the card[is that possible?] do i need the 20 to 24 pin converter thing or is that too sketchy to run with a 7800gtx?

if that psu won't work, i will be grateful if someone links me to a suitable psu under 100 dollars that i can get B&M at one of these stores[ i probably won't have time to buy it online] bestbuy, circuit city, staples, comp usa, radioshack.[pretty much anything NOT office max/depo, they all closed down around me]

please help. rewards will be given if it works.
 
i used a 20 pin antec truepower 430 with my 7800gtx for about 5 days. without the converter. it worked, but you'll probably want to get a new power supply. mine was slightly unstable (random crashes), but not spitting out flames or anything. it had 26 A @ 12 V which is supposedly adequate but not in my case...

now i'm using the truepower 2 550 sli power supply... much better.
 
Link's not working for me. Can you post what brand/model PSU you're using?

One of the most important things here is the amperes rating on the +12V. +12V@26A is the suggested minimum for systems with single 7800GTX cards.

My suggestion is to go to the stores and look for the trusted brands (Antec, Enermax, PC Power & Cooling, Fortron -- just a few). Make sure the models you are looking at are carrying at least 26A on the 12V rail, and you're set. That said, there should be plenty of sub-$100 PSUs that'll meet those requirements. Check the first stickied thread in this forum for a list of quality PSUs.

I'll leave the 20/24-pin adapters to someone more knowledgeable on the topic.
 
I'm pretty sure he meant this one: http://www.newegg.com/Product/Product.asp?Item=N82E16817153006

It has 18A in the 12V rail, which, if deathstar550's figure of 26A is correct, will not be enough.

However, your concern about the 20- vs. 24-pin issue is misplaced, IMO; the 24-pin standard was made to be backwards-compatible with the 20-pin standard. 20-pin connectors will go into 24-pin slots (the last 4 openings on one end are just empty) and 24-pin connectors go into 20-pin slots (barring anything directly next to the slot, the extra 4 pins will simply hang off the side).

Also, I believe that someone around here did tests with an ATX extender cable, and found that it introduced enough resistance to make a significant enough difference in power delivery.
 
DanK said:
I'm pretty sure he meant this one: http://www.newegg.com/Product/Product.asp?Item=N82E16817153006

It has 18A in the 12V rail, which, if deathstar550's figure of 26A is correct, will not be enough.
Click to expand...

Yes 18amps for a modern A64 system would be on the light side if it is a fullsized system not a SFF.

However, your concern about the 20- vs. 24-pin issue is misplaced, IMO; the 24-pin standard was made to be backwards-compatible with the 20-pin standard. 20-pin connectors will go into 24-pin slots (the last 4 openings on one end are just empty) and 24-pin connectors go into 20-pin slots (barring anything directly next to the slot, the extra 4 pins will simply hang off the side).
Click to expand...

That is correct this is usually not an issue however there have been a few reports fo problems with a 20pin in a 24pin ATX connector. Only way to know with your setup is to try.

Also, I believe that someone around here did tests with an ATX extender cable, and found that it introduced enough resistance to make a significant enough difference in power delivery.
Click to expand...
It was mainly on the 3.3v...and that would be jonnyGURU.
 
bestbuy does carry truepower 2's... the 430watt version is like 80 bucks I think...
 
You must log in or register to reply here.
Back
Top