• Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
    Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.

PSU for dually rig

C

Ch1m3r4

Gawd
Joined
Apr 11, 2003
Messages
870
I have (or will have) a msi k7d, dual 1800+ mps, mid-range video card (thinking 9500 range), audigy 1 (most likely), 2x wd 120gb hdds, probably 1 small hdd for OS only, one optical drive, 512mb ram...

anyway, this is my first recent dually system and I have a few questions. Do they require specific power supplies? I ask bc I had a pentium pro dually back in the day and it had some goofy psu w/ it that everyone I ever talked to said looked proprietary (I think it was an ibm built system).

also, how does two processors instead of one affect power requirements? my guess is they won't be overclocked, or at least not much.

so go ahead and recommend me a powersupply, or at least a wattage range and then I can go find a decent quality one in that range.

thanks
 
the MSI K7D board uses an ATX 12v PSU. so just any recent PSU will work fine.

i've got a Fortron 530w unit powering my Asus A7M266-D, 2 XP1700s @ 2.133GHz, 1GB RAM, 1 HD and an older video card.

you can pick up the Fortron/Sparkle units at newegg. the sparkle is a bit cheaper.
 
See my sig, i've got a similar setup to yours. As for the effect of another processor, it adds quite a bit (~60w to ~110w) of draw on the +12v rail to the system, so it's important for dual systems to have a strong ammount of power on whichever rail they do the CPUs from.
 
anyone know what rail the Tyan 2462 uses?

im looking for a new powersupply...

i have a Tyan 2462 w 2x 2500+ bartons running at 2.01Ghz~ ... 3x 15k scsi drives, 2x 10k scsi drives, a cd-rw, dvd+rw, Intel Pro 1000, Radeon 9800Pro flashed to XT...

so im sure im pulling a lot of power... i have a "600 watt" psu i got cheap locally, but even with an 80mm delta screamer it still puts out really really hot air... with the fan that came with the psu it would shut down after like 45 mins lol

and i dont want a $250 psu or anything nutty... i was thinking maybe the 530 fortron, but i dunno
 
FLECOM said:
and i dont want a $250 psu or anything nutty... i was thinking maybe the 530 fortron, but i dunno
Click to expand...


Awww your takin all the fun out of it
I was going to recommend a $500 N+1 redundant :p

not all ATX12V PSUs are the same, they keep upping the +12V rails (and yes I do mean dual +12V rails) with every standard version and the number of pins for the main power connector has changed as well fro 20 to 24

http://takaman.jp/D/index.html?english
( first box to the right ( QTY ) is the multiplier )

Ive heard good things about the big Fortrons, Tagan, and of course PC Power & Cooling
for dually boards, the supply Ive seen comprehensive tests for is the PCP&C
and they have tighter regulation, transient response, AC Ripple and noise than anything else out there, but are as implied by FLECOM.... $200

The Tyan Tiger S2462 takes a ATXGES power supply and thats a rare beast as it predates the EPS12V SSI compliant spec for dual CPUs
A Fortron FSP550-60PLN 550W
but wherever you get it make sure its got the ATXGES connector as I recognize that model designation and its not ATXGES specific
a PCP&C 510 would have a 510 A4 designate when you order it for the ATXGES connector
and is the same supply I have but I have it in a EPS12V w\ AGP Pro power connection option

Regarding the MSI K7D
http://www.amdmb.com/article-display.php?ArticleID=169&PageID=2
The ATX power connector is in the upper left portion of the motherboard allowing it to be easily reached by the ATX power cord in cases that may be full sized (tall). While the MSI board does have an additional 4-pin 12V ATX power connector to deliver the extra power the dual-Athlons require, unlike the Tyan board, there is not the convenience of a standard 4-pin drive power connector that allows users with older power supplies to use the newer dual-Athlon motherboards.
Click to expand...

SO...its a 20 pin connector, but ATX12V PSUs come in both 20 pin and 24 pin varieties
and you want the 2x2 auxillary +12V connector as well

strangely MSI appears to have has disavowed any knowledge of the K7D :p
its niether listed in their model comparision sheet or their database
and there is no return for the model number or the chipset even in the archives

I eventually found it with google,
but they certainly have some internal issues to sort out regarding internal navigation and support :p
http://www.msi.com.tw/program/products/server/svr/pro_svr_detail.php?UID=73

downloaded the manual regarding the +12V 2x2 pin Aux


"Always make sure to connect the power cable to the J4 to provide power for the CPU & AGP Pro card. Even if you do not intend to use AGP Pro card, you still have to connect the J4 in order to ensure that CPU will work properly with sufficient power
Click to expand...
in the best traditions of translated to English Manuals :p
 
so my choice is between the fortron 530w and the fortron 550w at newegg, around 80 and 95 respectively after shipping

1. It doesn't say specifically, but I'm assuming the 530w has the 2x2 aux connector?
2. The 550 has the 24pin stuff, etc, but we've already covered that that doesn't matter.
3. This box won't be doing anything mega crucial...folding in it's spare time, serving out stuff in my apartment to all of us, nothing outside (most likely)

so, worth the $15 extra bucks or no?
what would you do?
 
by #2 I meant that I keep reading how you can hook the 24pin to the 20pin and just let the other four hang over.

model numbers coming soon...

FSP530-60GNA
and
FSP550-60PLN
respectively
 
im not going to even bother trying to find an ATXGES psu, i just ax'ed off the connectors from my old NMB psu and soldered them onto this psu, i can do it again :p

so you think the regular version of that fortron 550 would power my stuff?
 
ok :)

time to break out the soldering iron again :eek:

soldering/desoldering the 24 pin connector on both psu's, the 8 pin on the one i have now, and whatever other magical ones the new one has is going to suck lol :(

how powerful is the fan on that psu?

i have a feeling im going to be sticking my delta or maybe a Tt SmartFan II or something in there, my machine sucks some serious power hehe.... my machine by itself puts three load lights (out of 5) on a SmartUPS 1000 :eek:
 
yeh but I need to shorten four PSU harnesses for the rackmounts :p

20' is about 17" too long :p

Id be interested to see what the Watt and amp draw is on that config of yours

FLECOM said:
so you think the regular version of that fortron 550 would power my stuff?
Click to expand...

it could probably power your car
 
the specs on that Fortron PSU look similar to the specs of the PCP&C Turbo-Cool 510w unit.

in fact, the guts of the FSP530-60GNA look kind of like the guts of the PCP&C as well.

you may be right about FSP building PSUs for PCP&C again, Ice Czar.
 
yeh, but I think the Ripple and Noise specs are tighter
the results Ive seen for the PCP&Cs (actual tests not specs)
are in the 10mv range, whereas the Fortrons seem to be specd at 50mv

while they might be made by Fortron out of mostly the same components
there also might be a few differences

the PCP&P Turbo Cool 510 > +3.3V, +5V, +12V = 10mV, +5VSB = 20mV
http://www.amdmb.com/article-display.php?ArticleID=270&PageID=15
Ripple.jpg
 
according to my ups its pulling around 350~370 watts
 
speaking of having the 24pin and 8pin connectors hang over a certain side of the plug...wasn't there a thread about that somewhere on [H] recently?

I can't find it, probably bc I suck at searching (or I'm imagining the whole thing).
So yeah, can someone either link me to a thread or just tell me which way the things are supposed to hang over?

thanks
 
you just plug it in with 4 pins hanging off one side. the ATX connector is keyed so you can't plug it in wrong, so whichever way fits is right.
 
you might have problems with that 4 pin connector. IIRC, the 8 pin one hangs 2 pins off each side. the caps look like they might get in the way on your board.
 
any ATX12V compliant power supply will have a 4pin (2x2)
its the EPS12V PSUs that have the 8pin (2x4)
 
well considering your into duallies, an SSI compliant EPS12V is future proofing
the pdfs from Fortron above, give you the molex part number for the J4 connector
which would likely be just a few cents to a buck

if you did it that way, removing the 8 and replacing it with the 4
then insulating and tie back the extra wire, if or when you need it....

that is if there isnt room, not exactly sure about the removal of those pins from the connector
 
You must log in or register to reply here.
Back
Top