Solved No Post after video card upgrade

March 31, 2012 at 12:49:45
Specs: Windows XP
no post after video card upgrade

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✔ Best Answer
April 1, 2012 at 03:23:30
Diamond Stealth S120 - graphics card - Radeon 9550 - 256 MB

So it's a 8x card.

The soyo board is a Intel 875 board. So they are compatible.

Try the eraser, other than that your card maybe defective.



#1
March 31, 2012 at 13:03:19
No answer without details

Goin' Fishin' (Some day)


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#2
March 31, 2012 at 13:33:05
just a guess but some video cards need a extra 12 volt power cable plugged into them also

Davidw


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#3
March 31, 2012 at 17:11:07
sorry for no details. Custom built PC replacing original 9800 pro video card with a Diamond Stealth S120 256mb AGP card. Able to put old card that did have power cable back into and start up. uninstalled drivers and tried new card again. Still no post? 550 power supply, Windows XP, Soyo P41875P motherboard.

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#4
March 31, 2012 at 19:59:55
Diamond Stealth S120
http://www.diamondmm.com/S120AGP256...

Detailed Specs

GPU : S120
ASIC Core : RV280

System Requirements

Power Supply : 250 WATT

Therefore, it doesn't need a power connector to be plugged into the card itself.
....

Comparison of AMD graphics processing units
http://en.wikipedia.org/wiki/Compar...

Search for: RV280

RV280 is the code name for the core used ONLY in the Radeon 9200 and 9250 chipsets on that page.

The Diamond S120 is a DOWNGRADE from the 9800 Pro, not an upgrade !

( If you thought it is an upgrade because there's more video ram on the card than the 9800 Pro....

All else being equal (it isn't in this case - the S120's video chipset isn't as good as the one you were using) the amount of video ram on the card is not relevant regarding the performance of the card, other than the more ram it has, the better max frame rates it produces at the highest resolutions the video chipset is capable of. The max frame rates for the resolutions lower than that are the same no matter how much video ram the card has. You don't benefit from more video ram unless you can set your display to those highest resolutions without some things on the screen being too tiny to make out easily.)
......

See this...

ATI AGP Graphics Cards - AGP Compliance Details
http://support.amd.com/la/kbarticle...

The Radeon 9200 chipset supports 2X @ 3.3 v / 4X / 8X AGP modes.

So does the Radeon 9250 chipset.

Both use the RV280 core, the same one as your S120 card does.

The Radeon 9800 chipset series supports only 4X and 8X AGP modes.

NOTE that if your mboard ONLY supports 4X, or 4X / 8X AGP modes (all mboards and video chipsets that support 8X mode also support 4X mode) , for SOME main chipsets, if you plug in an AGP card that supports 2X mode @ 3.3v, it WILL NOT display, and the mboard can be DAMAGED if you leave such a card in the slot after you have attempted to boot the computer !!

If that applies to your mboard, usually there is a WARNING in the mboard manual that you should NOT plug in an AGP card that supports 2X mode @ 3.3 v, or that supports 3.3 v !


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#5
March 31, 2012 at 20:49:04
9800 pro was failing. just need a low price card to keep old computer alive.

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#6
March 31, 2012 at 21:30:23
Take an eraser and clean the contacts on the video card

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#7
March 31, 2012 at 22:00:34
See the last part of response 4 ! , starting at...

"See this...

ATI AGP Graphics Cards - AGP Compliance Details "

If that applies to your mboard, other people (who started a topic on this web site that I've particiapted in) that had your problem couldn't get the mboard to boot either when the problem AGP card is installed.

If you have not already damaged the moard, the 9800 Pro card, or another card that has a video chipset that supports ONLY 4X, or 4X / 8X modes, will work.

E.g. for ATI video chipsets that were first released longer ago that are listed here:
http://support.amd.com/la/kbarticle...

....any chipset 2X mode is NOT listed for will work with your mboard.


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#8
April 1, 2012 at 03:23:30
✔ Best Answer
Diamond Stealth S120 - graphics card - Radeon 9550 - 256 MB

So it's a 8x card.

The soyo board is a Intel 875 board. So they are compatible.

Try the eraser, other than that your card maybe defective.


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#9
April 1, 2012 at 10:23:31
"Diamond Stealth S120 256mb AGP card"

Apparently there are two possible models.

- the one I found in response 4, which IS a Radeon 9250 card

DIAMOND Stealth S120 AGP 256MB (home support page)
http://www.diamondmm.com/S120AGP256...

NOTE the category it's listed under

Products > Video Cards > 9250 > DIAMOND Stealth S120 AGP 256MB DDR DVI & TV Out Video Graphics Card

Note there is NO obvious Radeon 9550 printed on the box it comes in.


- and another model, which has the Radeon 9550 chipset

Diamond has no info about the 256 mb version, but there are ads.....
e.g.
http://www.amazon.com/dp/B00067YYYK...
...and reviews for that version on the web that mention Radeon 9550.
I have encountered that several times previously - Diamond having no information about one of their models.

Support for the 128 mb version of it here:
http://www.diamondmm.com/S120AGP128...

NOTE the category it's listed under

Products > Video Cards > 9550 > ATI AMD Radeon™ 9550 DIAMOND Stealth S120 AGP 128MB DDR DVI & TV Out

Note the obvious Radeon 9550 printed on the box it comes in.

ATI AGP Graphics Cards - AGP Compliance Details
http://support.amd.com/la/kbarticle...

RADEON 9550 1.5V, 0.8V 4X, 8X

The Radeon 9550 chipset does NOT support 3.3 v, 2X mode
..................

Which version of the S120 do you have ?

If it has Radeon 9550 on the box it came in it should work fine .
...........

Other possibilities

Did you REMOVE the AC power to the case / power supply AT ALL TIMES when you were plugging in or unplugging the S120 card ?

If you DID do that at all times, did you WAIT until the led that is probably on the mboard goes out BEFORE you plugged in the S120 card AT ALL TIMES ?

(Most mboards have an led that is lit up when the power supply is receiving live AC power, whether the computer is running or not. It's there to remind you that you MUST remove the live AC power to the mboard whenever you are plugging in or unplugging anything that connects to the mboard or the power supply inside the case. After you have removed the live AC power, it takes a short time for capacitors inside the power supply to discharge enough for that led to go out. )

AGP cards and AGP slots have two horizontal rows of contacts on each side that are staggered vertically.

If you didn't do BOTH of those things, the circuits on the card, and sometimes the circuits of the AGP slot, are easily damaged, when you plug in or unplug the card.
If the .

It's also VERY important the the AGP card is all the way down in it's slot and it's metal bracket is fastened to the case BEFORE you attempt to boot the computer.

If it's metal bracket is NOT fastened to the case BEFORE you attempt to boot the computer, merely plugging a video cable into it can easily move the card upward in the slot and damage it's circuits. (Been there, done that, once only.)

.............

I found no manual for the Soyo P41875P, but any mboard that has the Intel 875P main chipset has the same AGP specs.

Intel® Desktop Board D875PBZ
Technical product specification
http://www.intel.com/support/mother...

http://downloadmirror.intel.com/151...

Page 29

AGP

The AGP connector supports the following:
. 4X, 8X AGP 3.0 add-in cards with 0.8 v I/O
. 1X, 4X AGP 2.0 add-in cards with 1.5 v I/O

Integrator's notes

. AGP 2X opertation is not supported

. The AGP connector is keyed for Universal AGP 3.0 cards or 1.5 v AGP 2.0 cards only.
Do not attempt to install a legacy 3.3 v AGP card
....

You CAN plug in an AGP card that has a chipset that supports 2X / 4X , or 2X / 4X/ 8X modes into an AGP slot that does NOT support 2X mode at 3.3 v

Picture showing 1.5 v divider in the P41875P's AGP slot:
http://www.motherboards.org/reviews...
http://www.motherboards.org/imagevi...

Picture of S120 9550 card - has the one slot for 1.5 v:
http://www.amazon.com/dp/B00067YYYK...

Picture showing the universal arrangement of slots and contacts on the bottom of an AGP card
http://en.wikipedia.org/wiki/File:A...

ALL cards that support 2X / 4X , or 2X / 4X/ 8X modes have the two slots. SOME cards that support only 4X or 4X / 8X modes have the two slots.

Either arrangement of the slots on the bottom of the card will plug into the P41875P's AGP slot.

Cards with the two slots MAY NOT work in the P41875P's AGP slot !
........

Video / Graphics Card Problems
http://www.pcbuyerbeware.co.uk/Vide...

Search the page for: note well

"Note well that installing a 3.3V video card into a motherboard designed for 1.5V cards will usually destroy the mboard."
.........



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#10
April 1, 2012 at 11:55:23
thanks for your information! It is the 9550 card - and was confirmed to be the 1.5 v. It has the warning light for the 3.3 as well. I did power down the right way. I am going to return the card now to Microcenter. Maybe a bad card? maybe AGP slot has issues? Maybe just a PCI card?

Thanks


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#11
April 1, 2012 at 12:07:28
It's extremely unlikely the card was dead on arrival. In most cases they're automatically checked to make sure they work immediately after they're made by the same robot that made the card.

If you DID NOT do these things at ALL TIMES:

"Did you REMOVE the AC power to the case / power supply AT ALL TIMES when you were plugging in or unplugging the S120 card ?

If you DID do that at all times, did you WAIT until the led that is probably on the mboard goes out BEFORE you plugged in the S120 card AT ALL TIMES ? "

Or if you didn't check for or do these things:

"It's also VERY important the the AGP card is all the way down in it's slot and it's metal bracket is fastened to the case BEFORE you attempt to boot the computer."

....then you probably damaged the card yourself.

"maybe AGP slot has issues "

That's possible but much less likely.

If the above applies, it's possible you damaged the AGP slot circuits when you were fiddling with the S120 card, or you or whoever may have damaged them previously and that may be why the 9800 Pro card was giving you problems.

I've only encountered two mboards of many that had damaged AGP slot circuits, and I'm pretty sure for one of them that was caused by a power failure event that produced power spikes or surges.
.
The only way to find for sure is to

- try an AGP card you KNOW works and is NOT AGP 2X /4X or 2X / 4X/ 8X compatible

- or - try the S120 card in another mboard that DOES have a working AGP slot that DOES NOT support 2X mode.

In any case, if your S120 card does not work in another suitable mboard, it's definately fried.

"Maybe just a PCI card?"

Yes, you could use one, but for the same video chipset, AGP cards always perform better than PCI cards, and you'll have a lot fewer video cards to choose from.

If you don't care about the performance of the video, you could use a cheaper card that has a video chipset that was first released earlier.

If you DO care about the performance of the video, buy one that costs more that has a video chipset that was first released later.

E.g. I have a PCI Radeon HD 2400 card that according to user reviews on the newegg web site for the model plays recent games very well.

Passmark relative performance benchmarks for video cards:
http://www.videocardbenchmark.net/



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