9800Pro and PSUs

URWORSTENEMY · Jul 7, 2003, 04:59 PM

Im wondering if my 9800 Pro problem is directly linked with my power supply unit

When I fire up any game, in this case either MOH:AA or SPEARHEAD, I get a sort of shimmering effect on close inspection with the graphics on screen.
I dont see any shimmering while working within windows or while surfing the net.
Im just wondering then, could it be that the card is not getting enough power and is therefore not functioning correctly

Any help much appreciated.

PS: The card is running default with no 'oc'ing. My PSU is 300w.

nme

~~craig588~~ · Jul 7, 2003, 05:03 PM

2 possibilites to fix it.
1. try turning on AA
2. try the omega drivers

Jul 7, 2003, 05:28 PM

Why would turning on AA fix that problem? isnt 300w low for a 9800 pro?

~~craig588~~ · Jul 7, 2003, 05:32 PM

AA can fix shimmering of individual pixels, and he said it was only on close inspection so I would assume its just a few pixels.

Jul 7, 2003, 05:33 PM

ok, I wondered. I just thought 300w was too low for a 9800 pro to work correctly.

Necrosis · Jul 7, 2003, 05:35 PM

Heck,

300 Watt PSU is too low for a 9700 Pro in my opinion...I'd suggest you upgrade if anything for future's sake.

~~Optimummind~~ · Jul 7, 2003, 11:45 PM

by downloading Rage3D Tweak (version 3.8c) and turning the option off.

Kgentatszu] · Jul 8, 2003, 01:22 AM

Quote:

Originally posted by Midnight Blue
ok, I wondered. I just thought 300w was too low for a 9800 pro to work correctly.

Yes, she's very right 'bout that.............
Midnight Blue, just curious, may i know your specs?? cause you seemed to know a lot 'bout this kind'a stuff....

UberLord · Jul 8, 2003, 04:21 AM

Quote:

Originally posted by URWORSTENEMY
PS: The card is running default with no 'oc'ing. My PSU is 300w.

I think you need at least 350W, preferably a 400W PSU
PSU Calculator

I run a 450W PSU with my 9800 pro without any probs

sc3252 · Jul 9, 2003, 02:08 PM

I run my 9800 np on 300 watt PSU and have had no crashes completely stable.

BavonWW · Jul 10, 2003, 06:57 PM

Quote:

Originally posted by URWORSTENEMY
[b]Im wondering if my 9800 Pro problem is directly linked with my power supply unit

The card is running default with no 'oc'ing. My PSU is 300w.

nme [/B

I improved things for my RADEON 9700 Pro by using two 350W PSUs PSU 1 Supplies only the ATX and HDD whilst the other handles DVD CD and fans inc a single 12v for the RADEONs fan. This plus any Omega driver set seems to improve matters greatly.
The RADEON is very fussy about sharing power.
A 400w good make PSU should do the trick too. Some 350w PSUs are really substandard despite their specs. The real test for a PSU is under load conditions. And 300w is deffo too low even if it's a good unit.

UberLord · Jul 11, 2003, 04:40 AM

Quote:

Originally posted by URWORSTENEMY
Im wondering if my 9800 Pro problem is directly linked with my power supply unit
When I fire up any game, in this case either MOH:AA or SPEARHEAD, I get a sort of shimmering effect on close inspection with the graphics on screen.
I dont see any shimmering while working within windows or while surfing the net.
Im just wondering then, could it be that the card is not getting enough power and is therefore not functioning correctly
Any help much appreciated.

PS: The card is running default with no 'oc'ing. My PSU is 300w.

nme

Just a thought - is it only those two chanes you see shimmering?

Nuke209 · Jul 11, 2003, 03:13 PM

400 at least??? if overclocking, i was told those with 500 had to clock theirs down...

***Zardon*** · Jul 11, 2003, 04:06 PM

Quote:

Originally posted by Nuke209
400 at least??? if overclocking, i was told those with 500 had to clock theirs down...

depends on the quality of the powersupply, alot of people buy cheap ass 550watt supplies which feed a poor volt to the rails.

a 400w sparkle will power almost anything with reference feeds.

NewsFactory · Jul 11, 2003, 04:13 PM

I got to say sparkle make some bad ass power supplies well worth the money!

scan are doing the 465W Enermax EG465AX-G-FMA II PSU with Manual Fan Control/Temp Control 2Yr

for 59.92 pounds uk

Capt'n Carnage · Jul 13, 2003, 11:02 PM

I just purchased a Thermaltake 480 truepower PSU w/fan speed controller , did i make a mistake should i have gone for a 550 PSU? I know the Thermaltake 480 truepower got very high ratings and awards but will it be enough if im going to be OCing my p4 2.8 800fsb and OC ing my Radeon 9700pro?

Kgentatszu] · Jul 14, 2003, 03:31 AM

that should do fine mate...........more than enough actually..

***Zardon*** · Jul 14, 2003, 04:13 AM

Quote:

Originally posted by Capt'n Carnage
I just purchased a Thermaltake 480 truepower PSU w/fan speed controller , did i make a mistake should i have gone for a 550 PSU? I know the Thermaltake 480 truepower got very high ratings and awards but will it be enough if im going to be OCing my p4 2.8 800fsb and OC ing my Radeon 9700pro?

people seem to be getting really carried away with PSUs at the minute and going for 550watters or higher as default. Its all about quality. Those TT PSUs are high quality.

Those 550w PSUs could handle servers with multiple CPUS !

check your voltages to the rails and im sure you will see they are all fine.

my general point to anyone reading this is, dont always go by the outright figure, spend more on a top quality PSU with high quality components instead of going for a low cost unbranded 550watt.

Ive seen a sparkle 400w power a 9800 pro overclocked with a barton 3000+ @ 3600+, with 3 hard drives, 3 optical drives, 9 case fans with reference readings to the rails !