Let's repair one of the best 486 mainboard - Octek Hippo 15

In this video I would like to repair another mainboard from a huge donataion, which I got from Ctibor recently for my channel. Octek Hippo 15 is one of the best 486 mainboards. It is based on the famous UMC8881/UMC8886 chipset, is very fast and supports all available 486 CPUs of that time. Let's see, if it's possible to help the hippo.

Mainboard documentation (Ultimate Retro Project):

Music by Model Povedeniya

Patreon:

[adriansdigitalbasement]

Great work and sweet fix! And yes, why recap something that doesn’t need it? I’m on board with you 100%

[MrFixiit]

nice repair i spotted that burned out resistor right away and was shouting at the screen lol

[SimmanGodz]

A new Necroware video on Christmas? What a gift! :D

[tuxer]

I really love your repair videos! As a kid i was experimenting with 286/386/486 and Pentium I mainboards. Before companies cared about their data getting leaked, i was able to collect huge stocks of old PC's from several enterprises. I once recieved 35 Compaq Prolinea's 486. Seeing them now on Ebay for sale for several hundreds of dolars, makes me sad that i once decided to throw them all out. I also repaired pc's for costumers and sold machines on, what was back than, the very beginning of the internet (1997 - 2005 ish). Seeing this brings up so many memories, wherefor i'd like to thank you!
Greetings from Belgium

[wskinnyodden]

That DX50 was technically the first CPU that forced active cooling to be required and it was also the reason that VLB started walking towards its demise as VLB cards would have to run at the same speed as the CPU FSB a LOT of VLB cards started dying when used with DX50 CPUs due to the 50Mhz FSB. That said, first generation PCI cards (when using similar/equivalent chipset) would be slower than the VLB counterparts when running on a 50Mhz FSB system due to the PCI BUS being clocked at 33Mhz and having additional layers between the cards and CPU. Please note that the same will not remain true when you move up in CPU generations, this will be valid for 486 systems with VLB and PCI slots. I would actually love to see you test a board that has both VLB and PCI slots with a DX50 CPU and VGA cards with the same chipset but in VLB/PCI versions. Another good test will be VLB HDD controllers with RAM for CACHE, as the PROMISE ones that used a 286 as a dedicated HDD controller, though in this case the problem is that I never found a version of those cards in a PCI version, though the VLB really kicked butt *once their drivers where installed that is*, specially in Novell Netware 3.x file servers when you have a bunch of users hitting the same databases at the same time, those things rocked hard with 8Mb of RAM dedicated to HDD cache. They also considerably sped up Windows 95 on 486 systems (or even Pentiums with VLB slots). It took years before a normal PCI controller and HDD matched that performance (When comparing IDE devices, SCSI devices are not in these considerations).

[robertbezak]

I absolutely love these types of resurrection movies. Thank you.

[MarcoGPUtuber]

Twas the night before Christmas, and all through the house, a Zombie hand was twitching to repair a motherboard.

[thedopplereffect]

I'm glad you did not burn your thumb holding that transistor down while soldering at 400°!

[RetroMechanic]

Merry christmas! I see that resistor first time, when you zoom to regulater I think that you miss that. but you find it!

[Numshark]

Merry Christmas from Cincinnati Ohio! 🎅

[FeArhsma]

I was 890 Likes. Merry Christmas And God Bless!

[ryant]

The good-old 486. My first ever computer.

[modlabs]

Thanks a lot for this repair. One more time - noce job. Waiting for nex videos.

[alexv]

The burned resistor R11 looks like a current sense resistor, the R14 above the small transistors is probably used for Vout feedback. The resistor (R11) is probably 0.5W or 1W but it is not a problem as it'll disipate 0.04W at 2A.

[PavelUrusov]

Excellent video, as usual! This is definitely a great 486 motherboard.

[FOIL_FRESH]

can't wait for the benchmarks. love your repairs!

[wittonleung]

Great XMAS gift for retro guys, greeting from my comatose Octek Hippo 15 mobo ^&^

[bASICMiner]

a 486 DX2-66 was my first PC when I was in High School... I got it in my third year... pretty awesome!

[foobar-k]

Great video, and great to see that "old lady" brought back to life :-)
Greetings from Argentina!

[ms-dosman]

Once again, nice job at repairing this system! Looking forward to those cpu benchmarks!