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Old 08-06-04, 04:18 PM   #121
Drew Carey
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Default Re: GeForce 6800 power supply questions

kahloq, thanks for you're reply. However that wasn't quite what I was wondering... I'm not looking to buy a new PSU. What I was wondering was how can one be sure that his PSU (the one he already ownes) is strong enough for his system (or future upgrades)? For instance, I saw a few replies in this thread from people using Geforce 6800's with a 250W PSU. So I'm asking how can they (or anybody else for that matter) be absolutely sure that their PSU isn't effecting their system in a negative way?. Even if their system is stable how can they check? I'd just like to know in case I'm ever in a situation where I'm not sure. After all, I wouldn't want to buy a new PSU unless it's necessary.

EDIT: I guess what I'm basically asking is if I get a new GeForce 6800 Ultra and my system seems stable then is everything safe? Or could I still be losing performance even though the system seems stable?

Last edited by Drew Carey; 08-06-04 at 05:23 PM.
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Old 08-06-04, 07:27 PM   #122
CP5670
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Default Re: GeForce 6800 power supply questions

I have this power supply and don't know if it will work with a 6800 GT, as it is a 400w but is only rated for 15A at 12V. This unit came with my original setup (I got this machine from hypersonic about three years ago) but the psu manufacturer seems to be out of business now. This is what I have and everything works fine:
Athlon xp 3200 with stock cooler and speeds at 1.65V
Asus A7N8X motherboard
1024mb pc3200 3-3-3-8 memory at 2.6V (two generic 256mb's and one corsair 512mb)
Geforce 3 (original 64MB 200/460mhz version, slight overclock to 225/475)
Maxtor 200GB 7200rpm PATA drive
Samsung 52x CD drive
Plextor 16/10/40x CDR drive
SBlive 5.1 soundcard
generic floppy drive

The BIOS reports 3.33V for the 3.3V rail, 4.86V for the 5V, 12.16V for the 12V and 1.664V for the cpu. The 3.3V one occasionally changes by +/-0.01 while the rest are all pretty much constant.

So do you think this psu will work at all with a GT and if so, what other stuff can I have on the same connection (group of wires directly from the psu) as the video card? The power supply only has two connections; right now the HD, floppy and a fan are on one and the cd drives are on the other. Also, about how much can I oc the card before the psu becomes a bottleneck?

thanks
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Old 08-07-04, 03:52 AM   #123
Auswak
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Default Re: GeForce 6800 power supply questions

Here are some Power Connection tips for Antec True Power Supplies



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Old 08-07-04, 07:11 AM   #124
kahloq
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Default Re: GeForce 6800 power supply questions

Well since you only have 2 molex lines and you arent gonna have any choice but to share a line with 6800 GT...I dont know how high you'll get with overclocks. Ya never know tho. However, best advise with your current setup is to run the GT on same line as fan(s) and run the other stuff on the other line(hardrive, cd drives, floppy). You wanna give the GT the cleanest line you can. You can check the rails with a power meter, if you want to.
__________________
SPECS:
Alienware
3.4 p4 /200FSB NO overclock
OCZ pc3500 performance 2 gig memory
OCZ 520 watt PSU
Asus p4c800deluxe-e motherboard
2 x 80g Sata HD's / 1 x 60g IDE / 1 x 40 g IDE
1 x DVD / 1 x lite on cdrw
7 case fans plus vantec dual fan pci card
BFG 6800 Ultra OC 456/1.28 Stock air
3.2P4(no OC)3dmark03 score :13570
http://service.futuremark.com/compare?2k3=3195131
3.2 p4 @3.472 217FSB 6800u@ 425/1.28 3Dmark03: 13738
http://service.futuremark.com/compare?2k3=3195221
WIFES PC: 3.2P4/BFG 6800GT/1 gig pc 3200

Last edited by kahloq; 08-07-04 at 07:22 AM.
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Old 08-08-04, 04:49 AM   #125
srky
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Talking GeForce 6800 and ASUS Terminator2 barebone?

Hi,
I have a barebone system:
-ASUS Terminator 2-P (230W PSU)
-Pentium IV 3.2Ghz
-Maxtor SerialATA 120 Gb
-DVD-RW Pioneer 107D
-Modem Intel 56K V.92
-GeForceFX 5700

I want to change my GeForceFX 5700 in to GeForce 6800.
Can my machine deal with a new GeForce 6800
(base version of the card with 12 pipelines(non-GT and non-Ultra version))

PLEASE answer me it's very important...

email: sr@yubc.net
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Old 08-08-04, 04:52 AM   #126
lapino
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Default Re: GeForce 6800 power supply questions

My guess it will. Running a 6800GT in a barebone showed 0 problems here (250watt psu, about same setup as yours)
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Old 08-08-04, 10:00 AM   #127
JGS4
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Default Re: GeForce 6800 power supply questions

Same here. My Geforce 6800 runs flawlessly in my system (250w PSU). Before I installed the card, PNY told me that since I am only 50 watts short of their requirement for the Geforce 6800 (300 watts) that it would be boarderline. I have no power problems at all, even when playing FarCry on high everything. 230 watts is kind of pushing it, though. I would call your card's manufacturer and see what they think. Also, open up your case and check to see if you have an available 4-pin power connector, you will need that, too.
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Old 08-08-04, 10:31 AM   #128
srky
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Default GF6800+ASUS Terminator2 barebone

Eh, I opened and checked my barebone case and found that I have only
200W PSU. And yes, I have 4-pin power connector. Well, I am 30 watts
shorter then i think. What should I do? (((
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Old 08-08-04, 12:24 PM   #129
srky
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Default GeForce 6800 and Terminator 2 PSU

In my ASUS computer I have Delta electronic 200W PSU (Chinese).

But it came with the original ASUS T2 barebone box and have only 10A on 12V rail.

Is it possible to run GF6800 standard edition with 10A?
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Old 08-08-04, 04:17 PM   #130
CP5670
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Default Re: GeForce 6800 power supply questions

Quote:
Originally Posted by kahloq
Well since you only have 2 molex lines and you arent gonna have any choice but to share a line with 6800 GT...I dont know how high you'll get with overclocks. Ya never know tho. However, best advise with your current setup is to run the GT on same line as fan(s) and run the other stuff on the other line(hardrive, cd drives, floppy). You wanna give the GT the cleanest line you can. You can check the rails with a power meter, if you want to.
Thanks for the reply. So you think it will work at all though? At the beginning of this thread someone said that 18A are needed on the 12V rail for a GT, which is what might cause problems for me. I could probably remove one of the CD drives until I get a new power supply, if that would help any.
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Old 08-08-04, 10:23 PM   #131
kahloq
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Default Re: GeForce 6800 power supply questions

If you experience problems that you can try removing a cd drive
__________________
SPECS:
Alienware
3.4 p4 /200FSB NO overclock
OCZ pc3500 performance 2 gig memory
OCZ 520 watt PSU
Asus p4c800deluxe-e motherboard
2 x 80g Sata HD's / 1 x 60g IDE / 1 x 40 g IDE
1 x DVD / 1 x lite on cdrw
7 case fans plus vantec dual fan pci card
BFG 6800 Ultra OC 456/1.28 Stock air
3.2P4(no OC)3dmark03 score :13570
http://service.futuremark.com/compare?2k3=3195131
3.2 p4 @3.472 217FSB 6800u@ 425/1.28 3Dmark03: 13738
http://service.futuremark.com/compare?2k3=3195221
WIFES PC: 3.2P4/BFG 6800GT/1 gig pc 3200
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Old 08-10-04, 05:17 PM   #132
bigfatron
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Default Re: GeForce 6800 power supply questions

I've had a slightly confusing experience. Dropped a Galaxy 6800 non-Ultra in this evening. Didn't bother unplugging anything else at first (see below for spec). First boot came up with massive artifacts. After a couple of botched reboots then it booted properly but with still some significant artifacts.

After that it didn't really want to know, despite unplugging everything else but the HDD and CPU fan and making sure the graphics card was on its own molex. However, there was some pulse in the card at least as it was flicking the monitor off standby whenever the machine was powered on. Alas the PC didn't get past POST after numerous attempts. In the end I shoved my old GF4 back in and here I am.

The PSU i've got is some old cheap 300W jobby so maybe thats the problem. Although it was worrying that the only time the card showed real life was with all my internal devices hooked up. 300W should be enough (although yes, I know the actual wattage is likely to be somewhat lower) although the Galaxy card i've got is supposedly slightly overclocked out of the box and the cooling setup on it seems beefy compared to most others so maybe its pulling a few more amps than others?

Now is what i'm experiencing symptomatic of PSU problems or is it likely to be some other reason? If it is likely to be the PSU then what sort of wattage am I best aiming at to replace the current one? (Bear in mind i'm thinking of going to an A64 3400 or 3500 before long too).

Anyway, cheers for any advice folks.

-------------------------------------
2x512MB Corsair 'value' PC400 DIMMs
Asus A7N8X-Dlx
T'Bred 2400 (at stock speed), Global Win 'Quiet' cooler
Maxtor 160GB SATA HDD
Relisys 16x DVD ROM
LG DVD GSA-4040B Rewriter
Creative GF4 Ti4400 (Galaxy 6800 nonUltra in the wings!)
Generic 300W PSU
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