ATI 9800 Pro Sucks!

  • Thread starter Thread starter Dr Richard Cranium
  • Start date Start date
D

Dr Richard Cranium

this might be what you are looking for. Discuss your oc concerns with this gentlman.

http://www.pretestedcpus.com/

01-PSMOD-1 I add an adjustable potentiometer, so you can raise and/or lower the +5v
and +12v power as needed. 10.00
01-PSMOD-2 I modify the the rear internal fan, so that it is getting 12v (which is
what it is designed for), instead of only 5v. 5.00



sample selections -

04-2533-B Intel P4-2.53ghz Northwood Socket 478. Pretested to run at least 2.85ghz @
1.70v. 255.00
04-2666-B Intel P4-2.66ghz Northwood Socket 478. Pretested to run at least 2.95ghz @
1.70v. 430.00
04-2800-B Intel P4-2.80ghz Northwood Socket 478. Pretested to run at least 3.05ghz @
1.70v. 540.00

01-PS350 350 Watt ATX Power Supply. K7 and P4 certified. 65.00
01-PS465 465 Watt ATX Power Supply. K7 and P4 certified. 95.00
01-PS650 650 Watt ATX Power Supply. K7 and P4 certified. 170.00
01-PSMOD-1 I add an adjustable potentiometer, so you can raise and/or lower the +5v
and +12v power as needed. 10.00
01-PSMOD-2 I modify the the rear internal fan, so that it is getting 12v (which is
what it is designed for), instead of only 5v. 5.00

01-PC166 128mb PC166 5.00ns access time SDRAM Memory. Tested and verified at a bus
speed of 175mhz!! 60.00
01-PC166-1 256mb PC166 5.00ns access time SDRAM Memory. Tested and verified at a bus
speed of 175mhz!! 99.00
01-PC800 128mb PC800 Rambus RDRAM Memory. 56.00
01-PC800-1 256mb PC800 Rambus RDRAM Memory. 95.00
01-PC800-2 512mb PC800 Rambus RDRAM Memory. 235.00
01-PC2700 256mb PC2700 DDR Memory. Tested and verified at a bus speed of 195mhz.
85.00
01-PC2700-1 512mb PC2700 DDR Memory. Tested and verified at a bus speed of 190mhz.



i am not affilated with this most excellent web site - i have only purchased cpu's from
Mike that were very difficult to find retail on the street.


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: Voltage that is! My 5V line used to stay @4.95-4.97, now it is around
: 4.89 - 4.91. I'm using a Antec truepower 430 ps. What kind of ps should I
: get to keep better voltage tolerances? Seems to be limiting my
: overclocking. I have a Asus A7N8X, with a xp 2400+, running at 12.5@171
: max. I've tried 10@2000, but I think my voltages are holding me back.
:
:
 
Voltage that is! My 5V line used to stay @4.95-4.97, now it is around
4.89 - 4.91. I'm using a Antec truepower 430 ps. What kind of ps should I
get to keep better voltage tolerances? Seems to be limiting my
overclocking. I have a Asus A7N8X, with a xp 2400+, running at 12.5@171
max. I've tried 10@2000, but I think my voltages are holding me back.
 
Antec makes an adjustable model, pricey tho. Alternative is a Enermax that
has internal pots.

rms
 
knowname said:
Voltage that is! My 5V line used to stay @4.95-4.97, now it is around
4.89 - 4.91. I'm using a Antec truepower 430 ps. What kind of ps should I
get to keep better voltage tolerances? Seems to be limiting my
overclocking. I have a Asus A7N8X, with a xp 2400+, running at 12.5@171
max. I've tried 10@2000, but I think my voltages are holding me back.
Click to expand...

The Antec is a fine PSU, and that's not a major deviation. What makes you
think it's the PSU or vid card holding back your OC? CPU, memory and bios
settings are more likely culprits than the 5v rail.
 
The Antec is a fine PSU, and that's not a major deviation. What makes you
think it's the PSU or vid card holding back your OC? CPU, memory and bios
settings are more likely culprits than the 5v rail.
Click to expand...

Right. About every PSU on the market has plenty of power on the 5 V rail.
Most are weak on the 12 V rail though, Antec being no exception. Enermax are
the only ones I know with plenty on all rails.
 
knowname said:
Voltage that is! My 5V line used to stay @4.95-4.97, now it is around
4.89 - 4.91. I'm using a Antec truepower 430 ps. What kind of ps should I
get to keep better voltage tolerances? Seems to be limiting my
overclocking. I have a Asus A7N8X, with a xp 2400+, running at 12.5@171
max. I've tried 10@2000, but I think my voltages are holding me back.
Click to expand...

No advice, but kudos on the great subject header! It "sucked" me right in.
;-)
 
Antec makes an adjustable model, pricey tho. Alternative is a Enermax
that has internal pots.
Click to expand...

Might want to try a Seasonic--they're not terribly expensive and the
tests that I've seen indicate that they manage +/- 2% across their
entire rated power range. Quiet too.
 
Right. About every PSU on the market has plenty of power on the 5 V rail.
Most are weak on the 12 V rail though, Antec being no exception. Enermax are
the only ones I know with plenty on all rails.
Click to expand...

Really? Maybe things have changed but I had an Enermax 350w and it
caused me major grief. Went to an Antec to fix the issue. Now using
Zalman though because I wanted a quieter PSU.
 
Antec makes an adjustable model, pricey tho. Alternative is a Enermax that
has internal pots.

rms
Click to expand...

I have several enermax units but I've never seen any voltage pots inside.

I do not think Enermax fit them to their units, although voltages can be changed
with a small resistor change mod. (but I've never found it necessary)
In fairness, I've always found the Enermax voltages to be pretty accurate with
little fluctuation.
On the system I'm currently using here... its fitted with
4 x 51/4" (Cd reader, Dvd reader, cd burner, DVD burner)
3 x 160gb hard-drives.
31/2" floppy
3200 barton cpu.
1 gig 3700 ddr.
Powercolor 9800 Pro.
TV card.
Paradise Raid card.
Audigy 2LS
80mm cooling the 9800 pro
4 80mm case fans
1 120mm fan in case side.

All fans controlled via Vantec speed controller to reduce noise.

This system uses a Enermax 465 430watt unit and all voltages are well within
specs. ie. 5v rail is 5.03v.

Regards

John
 
Mark Wellington said:
Really? Maybe things have changed but I had an Enermax 350w and it
caused me major grief. Went to an Antec to fix the issue.
Click to expand...

Same as me. Had an Enermax 365p and it was the biggest pile of junk I have
ever owned. The 5v rail was all over the place and caused me all sorts of
cold boot problems. So I went for Antec and all the problems went away.
The 5+12 combined numbers on the Enermax were terrible and even the more
powerful Enermax's weren't as strong as the Antecs. Personally, I wouldn't
touch Enermax with a barge pole.

Incidentally, I recently went for a Globalwin SAF Saphire 520w because I
wanted something silent (19dB!) and powerful. Awesome PSU, if not a bit
pricey.

Chip.
 
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