1080Ti or mistyped 2080Ti?

Akagi · 12 Jul 2020 at 20:35

Gray2233 said:
99% of PSU calcs are garbage and massively overestimate requirements.

The only half decent one I'm aware of is on the Be Quiet! website.

Just put my PC through the outervisions one, which most of the other PSU calculator are using just with a different skin, it recons my load wattage is 1025W and that I should get a 1100W PSU........

I just bought another energy meter so I can do some testing. (LCD stopped working on my old one)

Scania · 13 Jul 2020 at 06:56

Just typed my specs into the Bequiet calculator and it says it would put a 93% load on a 1000w psu, given the age of my Corsair 850, I think I was wise to change it.

Akagi · 13 Jul 2020 at 11:13

Scania said:
Just typed my specs into the Bequiet calculator and it says it would put a 93% load on a 1000w psu, given the age of my Corsair 850, I think I was wise to change it.

I just did the same, and it recommended a 1000W PSU as well. Its just another crap PSU calculator but with a prettier entry form.

Ill report back once my power monitor plug is here...

But ive been folding all night with my "1000W system" on my 750W PSU and my house is still in tact.

Scania · 13 Jul 2020 at 11:42

Acme said:
I just did the same, and it recommended a 1000W PSU as well. Its just another crap PSU calculator but with a prettier entry form.

Ill report back once my power monitor plug is here...

But ive been folding all night with my "1000W system" on my 750W PSU and my house is still in tact.

It’ll probably be fine had I left it although I bought it used in 2015 (had no idea it was that long ago) and over years of use I’m sure a PSU will lose efficiency and to let it spend its twilight days at pretty much maximum output would have hastened its end I’m sure.

It’s sold this morning on the MM for £45 so that makes my outlay for the 1000W Phantex a mere £85, which is more than a bargain to me.

Akagi · 13 Jul 2020 at 12:02

At this point I'm just curious to know exactly how much power my system draws when everything online tells me 1000W+

My PSU is 8~ years old I believe.

Scania · 13 Jul 2020 at 17:13

Acme said:
At this point I'm just curious to know exactly how much power my system draws when everything online tells me 1000W+

My PSU is 8~ years old I believe.

I want some kind of gizmo that’ll tell me how many watts I’m pulling, I’ve noticed from my smart meter that when the pc is running something like GTA V @4K the power usage meter is at the same level as when my microwave is running (900W)
But I’d like something to accurately tell me what the drain actually is.

Vince · 13 Jul 2020 at 17:15

Acme said:
At this point I'm just curious to know exactly how much power my system draws when everything online tells me 1000W+

My PSU is 8~ years old I believe.

1000w? What are you running dude? My Threadripper at full chat with radeon 7 at full chat doesn't pull even close to that at the wall?

Akagi · 13 Jul 2020 at 17:37

Vince said:
1000w? What are you running dude? My Threadripper at full chat with radeon 7 at full chat doesn't pull even close to that at the wall?

i7 2700K 4.8GHz / 1.38v
2x R9 390 Nitro-X 8GB
Essence STX
4 sticks of DDR3
3 HDD
1 SSD
6 fans
AIO watercooler
LED lights

I think it uses a smidge under 700W at full chat (I am currently folding with both GPU's, while at the same time browsing the web and watching videos etc...)

PSU calculators online tell me I need 1000W.

I'm curious how much I'm actually drawing. I remember reviews of these PSU's when they came out saying that despite the 744W rating on +12V they could actually supply 900+W on +12V before going pop... So there is a chance I'm actually pulling more than the PSU is rated to supply, but I doubt it given that I've been giving it the same abuse for years.

Vince · 13 Jul 2020 at 17:40

Acme said:
i7 2700K 4.8GHz / 1.38v
2x R9 390 Nitro-X 8GB
Essence STX
4 sticks of DDR3
3 HDD
1 SSD
6 fans
AIO watercooler
LED lights

I think it uses a smidge under 700W at full chat (I am currently folding with both GPU's, while at the same time browsing the web and watching videos etc...)

PSU calculators online tell me I need 1000W.

I'm curious how much I'm actually drawing. I remember reviews of these PSU's when they came out saying that despite the 744W rating on +12V they could actually supply 900+W on +12V before going pop... So there is a chance I'm actually pulling more than the PSU is rated to supply, but I doubt it given that I've been giving it the same abuse for years.

650 ish at the wall I recon for that lot.

You should get one of those power meter things and test it. I did with a mining rig and was amazed at how little 13 cards was pulling.

Akagi · 13 Jul 2020 at 17:44

Vince said:
650 ish at the wall I recon for that lot. You should get one of those power meter things and test it. I did with a mining rig and was amazed at how little 13 cards was pulling.

I have ordered one!

My point was, that 2x 390 Nitro's are more power hungry than 2x 1080TI's, and I have a 750W PSU, so Scania shouldn't need to upgrade his 850W unit. Doesn't matter now though, its done and he's happy so thats all that matters!

Apparently my SSD has fallen off its foam pad...

Vince · 13 Jul 2020 at 18:12

Acme said:
I have ordered one!

My point was, that 2x 390 Nitro's are more power hungry than 2x 1080TI's, and I have a 750W PSU, so Scania shouldn't need to upgrade his 850W unit. Doesn't matter now though, its done and he's happy so thats all that matters!

Apparently my SSD has fallen off its foam pad...

I think your right a pair of 390's need their own nuclear power supply.

Akagi · 13 Jul 2020 at 18:40

Vince said:
I think your right a pair of 390's need their own nuclear power supply.

My other PC has a pair of 660's and a stock 3570K on a 650W PSU, I recon it could run on a 450W PSU.

Vince · 13 Jul 2020 at 18:42

You love a couple of cards

I had 4 cards in my machine at one point, 3x rx570's and a radeon 7. All mining away and all functioning perfectly (like a furnace) on a 860 platinum... That could have been pretty close I suspect.

Scania · 13 Jul 2020 at 19:06

What's the consensus, do PSU's degrade over time? - I'm assuming they would - if so, how much would say a 7 year old lose in efficiency over the years? (which I'm guessing is my 850W's age)

Akagi · 13 Jul 2020 at 19:48

Vince said:
You love a couple of cards I had 4 cards in my machine at one point, 3x rx570's and a radeon 7. All mining away and all functioning perfectly (like a furnace) on a 860 platinum... That could have been pretty close I suspect.

Main PC is because an identical card came up cheap second hand so I grabbed it mainly to get more PPD but also to get more frames in some games of course.

The secondary PC cost me nothing. In fact it cost me £-30!

I bought it for £50 "broken" and it had a 1060 in it, which I then sold for £100... It also came with a GTX660, identical to another one which I had previously been given for free. It has a 3570K, Z77X-D3H, 8GB HyperX, that 650W XFX PSU, 1TB HDD, a tiny 60GB SSD, an H60V2 AIO which promptly went in the bin because it barely worked... The case I got for free some years ago and had been using it as a foot stool, and the CPU cooler was £20.

Scania said:
What's the consensus, do PSU's degrade over time? - I'm assuming they would - if so, how much would say a 7 year old lose in efficiency over the years? (which I'm guessing is my 850W's age)

They do. It should still be able to provide as much power as ever, but might draw a little more from the wall, and the ripple/noise might be a bit worse than when it was new, potentially out of spec, but not bad enough to damage anything. Each individual unit will differ though depending on how it has been used. Usually if something degrades enough to cause an issue, it will let you know about it... Whether that is through coil whine, instability under load, BSOD's, etc...

Or it might blow up.

... Wait thats only Hiper PSU's.

JediFragger · 13 Jul 2020 at 20:00

Acme said:
i7 2700K 4.8GHz / 1.38v
2x R9 390 Nitro-X 8GB
Essence STX
4 sticks of DDR3
3 HDD
1 SSD
6 fans
AIO watercooler
LED lights

2012 called dude, it wants its PC back...

Vince · 13 Jul 2020 at 20:02

JediFragger said:
2012 called dude, it wants its PC back...

- I even feel like mine is getting old as its basically 3 years ago I built it... getting that upgrade itch on the board and cpu already but 3rd gen TR is pricey and is my only real upgrade path.

Akagi · 13 Jul 2020 at 20:10

JediFragger said:
2012 called dude, it wants its PC back...

Built in late 2011 I think, GPU's aside of course. Still going strong with no intention to upgrade because it does everything I need it to! I just replace fans when the bearings fail and thats about it... Put a new AIO in it because my H100 was barely working after 8 or 9 years service... Put new fans on one of the GPU's too because the bearings died from running 24/7.

Its like a dependable car, I just maintain it.

Gabbatek · 13 Jul 2020 at 21:06

wth £300!!! urrgh, they go secondhand on ebay for £400

Akagi · 14 Jul 2020 at 20:35

Just to update, power meter thingy arrived. With both 390's pegged in Folding@Home I'm seeing 630W draw, if I chuck the CPU into the mix as well I'm seeing just shy of 700W draw.

So assuming that the PSU is 85% efficient as per its 80+ Silver rating, thats 595W being provided to the system out of the possible 894W my 750W unit can provide, split into 744W +12V and 150W 5V +3.3V.

Almost all of that will be 12V usage in a modern PC though but you could probably knock off another 20W being used by non 12v items.

Another 170W left in it before it even hits its rating. Could probably use a 650W PSU.

Also a little bit baffled by the PSU calculators...