KZG series capacitors still preset in new hardware

[mariushm]

I convinced my sister to let me upgrade her old computer.. she had an Asus a7n8x + Athlon XP 1500+

I bought a Celeron G1620 because it has integrated video card and it's cheap and probably 3-4 times as powerful as the old processor, and it's enough for her. At least she can now watch hd videos and do some basic editing of the movies she records with a hd video camera she has.

I looked for the cheapest motherboard that had both DVI/HDMI and VGA because she got very used to having two LCD monitors (i gave her a monitor I bought for 15-20$ on eBay and fixed it) so I picked an MSI MSI H61M-P20 (G3): http://www.msi.com/product/mb/H61M-P20--G3-.html

I saw the board had some electrolytics around in places less important but I was still surprised to see the large majority of those are UCC KZG.



Apologies for blurriness... pictures were made as an afterthought after installing everything in case, with macro and flash on as it's night now.

They're all KZG 1000uF 6.3v and it seems they're only used by the atx connector, chipset and near usb connectors.

The PCI Express x16 has a Samxon GD 470uF 16v capacitor and there's also some Samxon (maybe, they're small and I only see SX on them) SX 100uF 16v capacitors near the onboard audio and two KM by the ATX (probably for 3.3v).

The CPU VRM uses Samxon UER series polymers...270uF 16v in, 820uF 2.5v out. Memory uses a couple of 470uF 6.3v.

I'm not too concerned about the KZG capacitors, it's after all a system that average 45-55w at the power outlet (with 2 hard drives installed and a dvd writer), with one of those cheap 70% efficient power supplies I had here. It's not going to be a heat problem, so hopefully they'll last 5-10 years.

It's just surprising there's still stocks of such capacitors...

[momaka]

Re: KZG series capacitors still preset in new hardware

When NOT in critical or stressed applications, KZG do last at least a few years - which is almost always enough to at least get past the warranty.

I miss the old, red MSI boards. Seems everyone is making these dark blue/brown/black PCBs as if they are trying to hide traces and burn marks or something.

[RJARRRPCGP]

Re: KZG series capacitors still preset in new hardware

Sounds like the 2012s, 2013s and 2014s are just like the 2007s, where it looks like KZGs could have still been common for non-CPU areas.
And poly caps for the Vcore and/or input only.

Sounds like the typical 2007-style corner cutting. (Common on budget 775 boards.) (Typical for 2007 OEM 775 boards.)

For pre-2008 775 boards, you're lucky to find poly caps at all! And if not KZG, then it's highly likely TK. (At least for 2007)

And a higher chance of encountering Evercon on boards made in 2006 and at least for the first half of 2007. Possibly on 2005s, too.

I dread the old Asrock 775 boards! (probably from 2006-to-2008) Looks like they often if not always used Evercon!

[shovenose]

Re: KZG series capacitors still preset in new hardware

MSI makes good boards. I wouldn't worry about it. BUT, I have not seen an MSI in a while, even the low-end H61 microATX ones, with KZG. Usually OST.