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X2 requirements

Vee

Senior member
Will I get away with a FSP400-THN-P (Fortron 400W) for a X2 4400+ and 7800GT?

I also have a spare Zalman 7000Cu lying about. Will that still be on noiseless RPMs or should I get 7700?

(No OC, 2GB, raid1)
 
Well, both my X2's are on Antec 380 true power, but the biggest video card on those two systems is a 9600pro. And the Zalman should worked non-oc'ed.
 
Well the ground-rule with Fortron PSU's is to add about 50-60W to its "rated" output. Fortron makes some of the most stable and underrated PSUs around.
 
LIke mark suggested...With his one test setup when he had a 6800GT in there th esystem would freeze with a moderate OC.....Ihis was a 380 and his 430's likely would have done the deal. I dont know how much more power hungry if any the 7800gt model is so beware this may limit OCing...The 400watt power supply is waht I am talking about as well as the 2-3 year old tech heatsink...
 
Hmm... Ive actually heard that the 7800s have relatively lower power requirements, so I think that your PSU should be fine with no OCing.
 
Originally posted by: Duvie
I dont know how much more power hungry if any the 7800gt model is so

actually, the 7800GTX consumes less power then the 6800's (most noticeably the Ultra)






Damn, ssvegeta1010 beat me to it by 10 seconds........
 
Originally posted by: Vee
Will I get away with a FSP400-THN-P (Fortron 400W) for a X2 4400+ and 7800GT?

I also have a spare Zalman 7000Cu lying about. Will that still be on noiseless RPMs or should I get 7700?

(No OC, 2GB, raid1)

I used the 7000CU (B) on my X2-4200 when I first got it. I was ok for low load, but the temperatures got spooky (>60 Celcius) once I loaded both cores. I found that the stock cooler (the AMD/AVC heatpipe model) did a better job of cooling - but - it was really loud.

If you do go with an aftermarket cooler, I'd recommend a "heat-pipe" solution over the 7000/7700 series. The current air cooling favourites in the forum are:

-Scythe Ninja (massive beast)
-Thermaltake Big Typhoon (big and quiet)
-Thermalright XP-120/XP-90(c)/SI-120 (good performance/you choose the fan)
-Zalman 9500 (weird response so far. People have a love/hate relationship with Zalman)

There are other coolers that can handle the X2 load as well. During normal use the X2's pump out as much heat as the .13 A64s, but once they are loaded (both cores) the heat is incredible (close to, but not equaling Prescott).
 
I would recomend the 7700 over the 7000. right now at 2.4GHz, stock volts, running two instances of F@H, I get about a 58C load. the stock 3800 HSFU is kinda crappy, not much better than the one from my winnie 300+ and it loads around 60C. OC'd, didn't change volts and it shot up to about 66-70C. I've got a big typhoon coming hopefully on tuesday, that should lower my temps quite a bit.
 
AMD's website has info on the recommended HSF's for X2's. The Power Supply requirements seem to be differed to the maker of the mobo's.
 
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