update agp slot 4x to 8x.

Albatron Albatron pm266a pro p4 microatx...
December 17, 2010 at 21:31:03
Specs: Windows XP, intel 2.4, 2 x ddr 256
could i updade my agp slot 4x to 8x. my m/b is albatron pm266a pro (1.09), because i have radeon 9250, 8x agp card. it won't support for my m/b

See More: update agp slot 4x to 8x.

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#1
December 17, 2010 at 22:08:29
Which exact Raedon 9250 card do you have? There are some that are backwards compatible with AGP 4x. There is no way to alter the AGP slot in your motherboard. It runs at 1.5Volts whereas AGP8x uses only 0.8V.

The backwards compatibility depends on whether the card has the appropriate ability to detect and adjust for the higher voltage. Not all 8x cards can do it and if you put a non-compliant card in the higher voltage slot you can damage it.

If you want to make use of this graphics card you need a motherboard replacement and given that it is socket 478 and about 10 years out of date there is little to recommend spending money on it. Sell the 8x card on ebay to fund the purchase of a 4x card.

Goin' Fishin' (Some day)


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#2
December 18, 2010 at 00:00:49
All AGP 8x cards work with 4x boards.

If you're not getting any display with the 9250, you may have to set the BIOS to use the AGP slot instead of the integrated video.

Socket 939 | Dual-core Opteron 185 @ 3.2GHz | 4GB | 1.0TB | Win7 x64
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#3
December 18, 2010 at 02:12:01
Yes ALL AGP 8x CARDS WORK WITH 4x BOARDS.

Set initial display to AGP in BIOS.
+1 for jackbomb.

We can not fight new wars with old weapons, let he who desires piece prepare for war - PROPHET.


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#4
December 18, 2010 at 04:03:59
OK. Live & Learn. Thanks guys.

Goin' Fishin' (Some day)


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#5
December 18, 2010 at 08:36:06
U deserve +1 Richard59.

We can not fight new wars with old weapons, let he who desires piece prepare for war - PROPHET.


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#6
December 20, 2010 at 20:30:21
thanks everyone for answered my question. especially to Richard59. i intend to replace my m/b instead of my radeon 9250 (128 MB). Thanks for all

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#7
December 20, 2010 at 20:44:00
By the way, in the real world, a video chipset running in 8X AGP mode does NOT perform twice as good as the same video chipset does in 4X mode.

"All AGP 8x cards work with 4x boards."

That's not quite right guys.

All AGP 8X capable video chipsets also support 4X mode, but NOT all video chipsets that support 4X or 8X AGP modes can be used in mboards that support 4X or 8X AGP modes.

Video chipsets capable of 4X or 8X AGP modes that were first released earlier often also support 1X and 2X AGP modes.
The 1X is often omitted because very few mboards / main chipsets were made that support only 1X AGP mode.

The Radeon 9250 video chipset supports 1X / 2X /4X / 8X AGP modes.


Some mboards that support 4X AGP mode, or 4X / 8X AGP mode, CANNOT use an AGP video chipset that supports 1X / 2X modes ( they use 3.3v ) - doing so will DAMAGE the video card AND the AGP slot's circuits.

READ the manual for your mboard model ! If that applies, there will be a WARNING message in the manual regarding that !
..........

E.g.

This shows which Radeon video chipsets support which AGP modes:
Scroll down.
http://support.amd.com/la/kbarticle...

If your mboard model cannot use AGP cards that support 2X mode (3.3 volts) , then you need a Radeon video chipset 2X is not listed for.



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#8
December 21, 2010 at 20:40:39
a great explanation Tubesandwires. i read my m/b manual, it supports upto 4x only. so, i desired to change my m/b. thanks a lot.

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#9
December 22, 2010 at 18:51:39
If you're going to change the mboard for a different one, you may have the same problem with the Radeon 9250 card and that mboard. Read the mboard manual for whatever mboard you intend on using.
NOTE that if there is no WARNING message about you cannot use a 2X AGP card - 3.3 volt cards - then the Radeon 9250 card with probably work fine.

The Radeon 9250 video chipset is rather old, and ATI / AMD no longer updates the drivers for it.


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