rtyall

OK, thanks. It's not a big issue, just wondered if there was a simple solution. I can live with it, I'm sure when I get upgrade to some higher impedance/lower sensitivity headphones, or get a new PSU or soundcard, it'll be gone.

It's a PCIE sound card, but yep, getting power from the PSU connected to the motherboard. Currently plugged into the jack in the case panel as that has less buzz than plugging directly into the card, perhaps from the choke on the cable.

Regarding EMI/RFI in a PSU, are there any easy ways to reduce or get rid of it? I suspect (could be wrong though) that EMI from my PSU causes a high pitched buzz in my headphones, but only when playing some games and only on certain screens of games - the operator and weapon selection screen of COD Vanguard for instance. It was fine while I had a TX650M, I only noticed it after upgrading the PSU (upgraded due to GPU upgrade and was at the upper power threshold for my system). I have an MSI MPG A850GF, I've added some ferrite chokes to the audio cables, they helped a bit. I've also found there's certain cable routes that decrease the buzz, but nothing gets rid of it fully.

Thanks for that, happy to stick with the MSI and a known quantity. The Capxon are the KF series, I can't make out what the JunFu are.

That's a pretty sneaky tactic, you'd think it would have better moderation. I've picked one up from the local shop, looking through the vent I can see a couple of green JunFu capcitors, some larger black Capxon with P2106 105.C printed on them and some smaller SMD made by Chinsan with a blue Cs logo that I can't identify. I'd open it up but it has a warranty void sticker on one of the screws, as the quality is looking suspect I'm going to return it and stick with the MSI.

Thanks for letting me know. At £60 it might be worth a gamble, the 80+ cert seems to be identical to the MSI: To be honest I doubt you'll get much information from Currys, it's likely any emails will go to their helpdesk, they won't have any way to get in touch with the product specialist that sourced and approved the PSU.

I've just ordered an MSI MPG A850GF and was having a look at the other PSUs made with the same CWT GPU platform, I've noticed the cheap Currys own brand ADX Power W is the same. Is the ADX tier C just because of lack of reviews, is it likely to be a decent budget option?

Mine was a different mounting method so they're not really comparable. I'd guess with the Rev 3 when you put the cooler on it pulls it tight, because you're using pins to connect to the backlate and then screwing into those pins it matters less how tight the backplate fitting is. With the rev 2 you screwed the coller directly onto the backplate, so any plates with longer screwholes would have poor pressure. Perhaps just mount the coller without paste and check how secure it is beore doing as proper install with paste?

Hard to tell from the pictures, it looks like your hoses run parallel from the top of the CPU block to the top of the rad, you might be getting air pockets messing up the flow like that. Ideally you'd want the rad the other way up (hoses at the bottom) and have the rad higher than the cpu block -

Sorry, don't know if you can buy them anywhere, I wouldn't have known it was an issue if Arctic support hadn't mentioned it. In hindsight, some small washers mounted between the screw heads and mounting clips would have the same effect and increase the pressure.

Glad you've sorted it. Just checking though, you haven't mounted the backplate so the side without the plastic shield is touching the board have you, as it definitely should be plastic side to board?

You'd think it does but it doesn't quite, there's a recess of about 2mm where there's no thread in the holes on the back of the MSI plate. Pretty sure the Arctic one had thread all the way to the back, IIRC the back of the screwholes looked like 6mm nuts sat flush with the rest of the backplate.

I had a similar issue with the MSI backplate. Arctic sent me out a different plate with shorter screwholes and now it feels solid when fully tightened. You can see the difference in plates in the pic, MSI on the left, Arctic on the right.

There's been a couple of reports of the braided cables over the pipes causing issues and damaging the cable from pump to fan, not heard of any other failures.