Ozzuneoj wrote on 2023-02-17, 05:00:
Nice board! Socket A boards with ISA are pretty uncommon in general, but like you said, it's even more rare to find one that doe […]
TrashPanda wrote on 2023-02-17, 04:03:
Got this Jetway 663AS Pro, been after a Socket A board with both ISA and Universal AGP for a while but never found one at the ri […]
Got this Jetway 663AS Pro, been after a Socket A board with both ISA and Universal AGP for a while but never found one at the right price that didn't require me to recap the bastard. So when I spotted this one I threw the seller a offer for it and it was accepted, comes with a Athlon 1.1 Ghz and a chunky Spire cooler .. pretty sure its one of the Thunderbird models as it doesn't identify with the Athlon XP monkier. Board doesn't appear to be anything super special but the caps all look to be in good condition and aside from needing a clean the board itself is in good nick.
Figure with ISA and Uni AGP it would make for a really nice top end DOS/Win98se Box, appears its also using PC133 ram which will also work well for such a rig.
Jetway KT133.jpgJetway Post.jpgSpire Cooler.jpg
I believe there is a Ultra version of this board with the KT133A chipset .. not sure what the difference is between the chipsets but the two boards appear to be identical otherwise.
Nice board! Socket A boards with ISA are pretty uncommon in general, but like you said, it's even more rare to find one that doesn't have visibly bad caps.
Being that the board is a KT133, it is limited to 200Mhz FSB CPUs. The KT133A supports 266Mhz.
So, you will be somewhat limited on what chips you can use in it. If you wanted to upgrade you'd only be looking at 1.2, 1.3 and 1.4Ghz models with 200Mhz FSB, but I don't know how common they are. Personally, I'd just stick with the one that's in it unless you find something faster for cheap or already have one. The wattage of those chips creeps up really fast as the clock speed increases. I remember how toasty my old 1.33Ghz Athlon Thunderbird got.
https://en.wikipedia.org/wiki/List_of_A ... 2,_180_nm)
For a DOS/98se rig an Athlon 1.1 should be pretty dang fast, doubt either OS will need more grunt than that to run just about anything of that period, trying to decide which GPU would suit it, I have a ATI 9600XT which would work nice or I could go for a Geforce 2 or Geforce 3, I also have a Voodoo5 5500 that I could throw in it. I don't have many ATI cards from that period to pick from but I was musing over if the bratty Fury MAXX would work in this board ...Ive heard that KT133 seems to get along with it. (Just remembered I have a 128bit Radeon 9250 stashed in a box somewhere)
This is the problem I think all retro collectors have .. too many choices for GPUs.
Edit - out of curiosity I looked at how much the Athlon 1400 A1400AMS3B goes for and 25 - 35 USD seems to be what they list for, whats criminal isn't the price but the postage+import costs ...nearly twice what the CPU sells for. So unless I see one locally the 1.1 will be more than enough !
Edit2 - Do the 266 FSB models clock back to 200 FSB and can have their Multi changed ? or are they locked to their set FSB and Multipliers ? I never played around with Thunderbird CPUs back in the day.