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 Post subject: Survey: AMD Chip Temps with 5V Fans
PostPosted: Sun Jun 22, 2003 9:20 pm 
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Joined: Wed Jun 18, 2003 7:31 pm
Posts: 43
Location: Mississauga, ON
Hey all - I'm considering getting a new AMD chip to replace my Palamino Athlon 1600. It currently runs at 58deg while folding, with a 5V L1A on a Volcano 7. Since I'm trying to kill the noise, I'd like to stay with a 5V L1A on the HS. Just looking to see who has gotten what temps with their T-bred or Barton, with the fan at 5V and the CPU under full load (folding, encoding, whatever...)

So if you could please let me know the chip, folding temp, and HS, I'd really appreciate it!

Thanks,
Sameer

Note: I know about Alistair's thread, but there are very few posts there where people have all the info I need...


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 Post subject:
PostPosted: Sun Jun 22, 2003 9:24 pm 
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Joined: Fri May 02, 2003 9:21 am
Posts: 228
take a look at this: http://users.erols.com/chare/elec.htm

according to that page, the palomino 1600+ puts out the same amount of heat as a tbred 2100+, and the barton 2500+ puts out ~10% more heat (68w vs 62w)

Hope that helps.


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 Post subject:
PostPosted: Sun Jun 22, 2003 9:55 pm 
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Joined: Wed Jun 18, 2003 7:31 pm
Posts: 43
Location: Mississauga, ON
Right - I should have mentioned, my XP1600 Palamino is undervolted to 1.45V...

I'm hesitant to compare wattages because that is at the stock voltage, and I'd like to know what the optimal settings are. Thanks for the chart tho - I'm going to have to pore over that.


BTW, about wattages:
SANDRA reports my wattage at 36W, which is utter BS

However, using P=VI, with V=1.45V and I=36A (from that chart), my wattage *should* be 52W.

Anyone know how to get the *right* wattage?

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Sameer

Opty 165 @ 2.25GHz, 1.2V, AC Freezer 64
Asus A8R32-Deluxe, 2x512 OCZ PC3500
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Enermax Liberty 500W, P180


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 Post subject:
PostPosted: Sun Jun 22, 2003 10:45 pm 
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Joined: Wed Apr 16, 2003 7:51 am
Posts: 391
Location: Paris, France
I used to have a palomino 1600+ undervolted to 1.525v, TT volcano 7 hs, and ducted L1A at about 7v. I was thinking about buying a new heatsink, but as a good, ductable heatsink is expensive, I bought a t-bred JIUHB 1800+. It runs about 5°c to 7°c lower with the same setup (undervolted to 1.25v), and it's unlocked, which means I can underclock or overclock depending on my needs.

As you've undervolted your processor from 1.75 to 1.45v, its max wattage should be about 62.8w / 1.75² * 1.45² = 43w, and typical wattage about 56.3w / 1.75² * 1.45² = 38.6w

T-Bred JIUHB 1800+ at 1.25v = 31w max. I can also underclock it to 1600+ at 1.2v (maybe 1.15v, can't remember), should be about 26w max.

Results should be the same with a 1700+, but they didn't have any left so I had to go for the 1800+.

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 Post subject:
PostPosted: Sun Jun 22, 2003 11:24 pm 
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Joined: Sun Aug 11, 2002 3:26 pm
Posts: 4000
Location: Phoenix, AZ
Here's my specs:

XP2100 T-bred-B, OC'd to 2158Mhz (166*13), UV'd to 1.5v
SLK-800 w/ Ducted 80mm L1A @5v

Max Temp: 63°C (After 3 weeks of continuous Folding):lol:

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 Post subject:
PostPosted: Mon Jun 23, 2003 12:05 am 
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Joined: Mon Feb 24, 2003 3:54 pm
Posts: 155
Location: Antwerpen Belgium
standard Barton2500, SLK 800
Ambient temp 28C

CPU Light use about 42C fan 5.5V - 1425rmp
CPU heavy use, the fan speeds up at 50C, but most of the time the fan stays at 1425rmp


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 Post subject:
PostPosted: Mon Jun 23, 2003 4:37 am 
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Joined: Fri Apr 04, 2003 2:05 am
Posts: 66
Location: London
Setup as below.

At 100% load about 8 degrees Celcius above system temp.

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