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Thread ID: 44904 2004-05-03 05:52:00 AGP 8X on Pentiun III motherboard fus1_n (3818) Press F1
Post ID Timestamp Content User
233882 2004-05-03 05:52:00 I was thinking of buying a new AGP 8x graphics card for my computer. but today i was told that a AGP 8x card put in a Pentium III motherboard with only a AGP 4x slot will blow up the m/b. (my m/b has only AGP 4x) even if the card is backwards compatible.

my pc
PIII 733 MHz
128mb ram
BAD 16 MB ATI Rage 128 pro

this makes me mad.. is this really true?
fus1_n (3818)
233883 2004-05-03 06:13:00 You should be mad at whoever told you such rubbish metla (154)
233884 2004-05-03 06:37:00 I've run an 8x agp card in a 4x slot for over a year now.

Apart from auto detecting the speed on your motherboard and stepping down to 4x accordingly, the newer ones also step down to the correct 4x voltage too.
PoWa (203)
233885 2004-05-03 06:44:00 >I've run an 8x agp card in a 4x slot for over a year now

is it on a Pentium III motherboard though?
fus1_n (3818)
233886 2004-05-03 06:47:00 I think the person who advised you is a little confused... try reading this (www.directron.com).

Cheers,

Lo.
Lohsing (219)
233887 2004-05-03 07:01:00 > I think the person who advised you is a little
> confused... try reading this

that made things better.
new G-force Fx here I come! (on a slow 4x slot though :()
fus1_n (3818)
233888 2004-05-03 07:25:00 I've been meaning to ask a similar question.

I've got an ATI AIWP which only has 8MB of SG-RAM, and while it's adequate to play things like Half-Life and earlier, it's getting old. My motherboard is a CUV4X from Asus, and my CPU is a Celeron II.

I investigated my options, but got stumped as to how the voltage would affect my ability to upgrade.

My understanding now is that an AGP 8x card I get should drop to the correct voltage for my motherboard (which supports AGP 1/2/4x)?
agent (30)
233889 2004-05-03 07:29:00 Well if you have a look at some review sites aroudn the place (I read one at tomshardware.com 2days ago) and 8x agp provides like 0-3frames/sec difference in every test they did. In other words, SFA difference. PoWa (203)
233890 2004-05-03 07:37:00 Oh what do you know, I found it (www20.tomshardware.com).

Read through that and you'll see theres hardly any difference between having a 4x slot and a 8x slot. Marketing and hype, smoke and mirrors.
PoWa (203)
233891 2004-05-03 07:45:00 Hrmmm wait... this is it (www20.tomshardware.com). What a maze... I see you have to use the next button, rather than the contents links otherwise you start skipping pages. PoWa (203)
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