I think I need more power...

jfenn · 02-14-2008, 12:53 PM

I attempted to upgrade my mom's pc with a newer (but still pretty old, cause I'm cheap) motherboard & cpu. The Enlite case has a weenie 250 watt power supply, which worked flawlessly with the old Asus P2B and overclocked Celeron 300a. After I replaced the old mb and cpu with a DFI AD73Pro mb, Athlon XP 1700+ cpu, and 512Mb of PC2700 ram, I saw a little blurb in the DFI mb manual saying the board needs a minimum of 300W electric current. I plugged in the power cord anyway, and I get nothing, nada, zilch. There is an LED that lights for the power to the PCI slots, but that's the only sign of life. I've cleared the CMOS, double checked all the power connections, and the only thing that I changed is the motherboard, cpu, and ram. So, do you think my problem an underpowered power supply, or should I be looking at something else?

dai · 02-14-2008, 04:44 PM

you need something like this in there
http://www.newegg.com/Product/Produc...82E16817103940

jfenn · 02-15-2008, 07:27 AM

I agree with you, but is that your best guess as the reason the system will not boot?

dai · 02-15-2008, 07:58 AM

it's the first thing you look at when emachines is mentioned
general rule of thumb
95-98 200-300w
98-me-300-450w
xp-450+
vista-550+
agp= min 18a on the 12v+ line
pcie=min of 26a
from xp on quality power supplies whereas previously generic would suffice

2pistolpacker · 02-15-2008, 08:32 AM

I would definitely get a better power supply. There are 3 models of the XP1700 chip, (266 FSB Palomino Core) Model 6, and (266 FSB Thoroughbred Core A and Core B) Model 8. The AMD website only shows your board to support the model 6 Palomino with a default voltage of 1.75v. I have owned Socket A boards from every manufacturer, but not DFI and cannot see what difference it makes. It either supports 266 FSB or it doesn't, but if your power supply won't power the system, it's a no go. Mike

**speedster123** · 02-15-2008, 09:55 AM

nice deal
http://www.newegg.com/Product/Produc...82E16817371007

02-14-2008, 12:53 PM	#1 (permalink)
jfenn Registered User Join Date: Dec 2007 Posts: 10 OS: Win2K	I think I need more power... I attempted to upgrade my mom's pc with a newer (but still pretty old, cause I'm cheap) motherboard & cpu. The Enlite case has a weenie 250 watt power supply, which worked flawlessly with the old Asus P2B and overclocked Celeron 300a. After I replaced the old mb and cpu with a DFI AD73Pro mb, Athlon XP 1700+ cpu, and 512Mb of PC2700 ram, I saw a little blurb in the DFI mb manual saying the board needs a minimum of 300W electric current. I plugged in the power cord anyway, and I get nothing, nada, zilch. There is an LED that lights for the power to the PCI slots, but that's the only sign of life. I've cleared the CMOS, double checked all the power connections, and the only thing that I changed is the motherboard, cpu, and ram. So, do you think my problem an underpowered power supply, or should I be looking at something else?

02-14-2008, 04:44 PM	#2 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,746 OS: win 7 32x 64x rtm	Re: I think I need more power... you need something like this in there http://www.newegg.com/Product/Produc...82E16817103940 __________________

02-15-2008, 07:27 AM	#3 (permalink)
jfenn Registered User Join Date: Dec 2007 Posts: 10 OS: Win2K	Re: I think I need more power... I agree with you, but is that your best guess as the reason the system will not boot?

02-15-2008, 07:58 AM	#4 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,746 OS: win 7 32x 64x rtm	Re: I think I need more power... it's the first thing you look at when emachines is mentioned general rule of thumb 95-98 200-300w 98-me-300-450w xp-450+ vista-550+ agp= min 18a on the 12v+ line pcie=min of 26a from xp on quality power supplies whereas previously generic would suffice __________________

02-15-2008, 08:32 AM	#5 (permalink)
2pistolpacker Registered User Join Date: Dec 2007 Location: Lenexa, Ks Posts: 1,038 OS: Win XP Pro My System	Re: I think I need more power... I would definitely get a better power supply. There are 3 models of the XP1700 chip, (266 FSB Palomino Core) Model 6, and (266 FSB Thoroughbred Core A and Core B) Model 8. The AMD website only shows your board to support the model 6 Palomino with a default voltage of 1.75v. I have owned Socket A boards from every manufacturer, but not DFI and cannot see what difference it makes. It either supports 266 FSB or it doesn't, but if your power supply won't power the system, it's a no go. Mike __________________ Speak kindly to me, beloved master. Revel in my unconditional love, and give me every minute that you can spare, for my time with you is short. --Your faithful dog Last edited by 2pistolpacker; 02-15-2008 at 08:37 AM.

02-15-2008, 09:55 AM	#6 (permalink)
speedster123 Mentor Join Date: Oct 2006 Location: United States-New York-Long Island Posts: 5,228 OS: xp pro SP3	Re: I think I need more power... nice deal http://www.newegg.com/Product/Produc...82E16817371007 __________________