1000w Gold no good for 1080ti !?

digitaldreams

digitaldreams

digitaldreams

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5 Jul 2007
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Just upgraded my sons PC from a 980ti to 1080ti.

Now first boot is always to a black screen, switch off and on it boots fine !?. I'm guessing the power supply is struggling with start up current. Specs below...

OCZ ZX series 1000w (gold)
1080ti OC
Asus P5T WS pro
Core i7 extreme 990X
Zalman flower cooler
12gb triple Channel ram
Sound blaster XF-i with front panel
DVD writer (disconnected)
Samsung 860 QVO 1Tb SSD
4Tb hard drive

Wondering if a platinum 1000W would solve the issue ? (one working fine in my PC with a 1080ti)
 
 
snips86x said:
It could be age and/or component degredation. I wouldn't personally rate the OCZ PSUs but you don't need another 1kw. You'll be fine with a decent 850w like these for example:
https://www.overclockers.co.uk/cors...lar-power-supply-cp-9020196-uk-ca-24t-cs.html
https://www.overclockers.co.uk/cors...fully-modular-atx-power-supply-ca-267-cs.html
https://www.overclockers.co.uk/phan...old-modular-power-combo-supply-ca-08a-pt.html
https://www.overclockers.co.uk/seas...-platinum-modular-power-supply-ca-05w-ss.html
Click to expand...

Thanks, the last one looks interesting. I tend to go for 1000W though as most are at their most efficient at 50% load, the 1080ti is 250W alone.
 
OCZ had very few actually good PSUs and ZX wasn't such rarity.
So would definitely consider it far past designed lifespan.

But also other parts are such old that they could be the cause.
Would be certainly time to check "BIOS" battery.


digitaldreams said:
I tend to go for 1000W though as most are at their most efficient at 50% load
Click to expand...
And unless it's 80+ Titanium have efficiency sucking hard at power draw in state most PCs are most of the time.
While efficiency drop at 100% load is ~2 max 3% with most of that happening only above 80% load.
PSU efficiency isn't any bell/Gaussian curve.
It's in practise plateau with fall to canyon below 20% load.

Also that PC won't ever reach that 50% load without manually overlocking/volting.
 
I'd like to mention that I have a 10900K and 1080 Ti setup, and I got one of those mains pass through wattage detectors.

With a normal amount of overclocking (5.1 Ghz all cores, 2000+ GPU frequency and +500 on Vram), it pulls 649w at the highest load I could put through it using OCCT or some such.

I have a 1kw EVGA T2 as the 850w was £209, and 1kw £229 at the time so I thought at that price point for a high end unit get the 1kw for peace of mind and future proofing.

I wouldn't recommend anything less than a 750w for a high end Intel CPU and 1080 Ti combo, 850w if you plan to get an RTX 3000 or future GPU.
 
BallistixOnZ490 said:
I have a 1kw EVGA T2 as the 850w was £209, and 1kw £229 at the time so I thought at that price point for a high end unit get the 1kw for peace of mind and future proofing.
Click to expand...

EVGA reckon you can run two 6900 XT GPUs on your 1kw EVGA T2, can’t run two 3090 though for that you need one of their 1200W.
 
nlel1975 said:
EVGA reckon you can run two 6900 XT GPUs on your 1kw EVGA T2, can’t run two 3090 though for that you need one of their 1200W.
Click to expand...

RTX 3000 range as well as the 10900K basically upped all the wattage requirements, hence the general advice of 'all you need right now is this much' is always bad.

Also its never a good idea to have a PSU running at or near full capacity anyway as that's going to burn it out faster. While 750w is sufficient headroom for a 1080 Ti and top end CPU, a single RTX 3080 or higher brings that up to 850w to keep it around 100w under the max capacity at full load.

While its unlikely that you are going to be fully loading a PC with gaming, who with a high end system isn't going to want to run benchmarks and stress tests now and then?

You get the best range and unit you can afford for the PSU.

My 9 year old XFX 850w black edition has started showing signs of failure after I've started using my backup pentium build to dual box in the MMO I'm currently playing, the PC is no longer switching on / powering up at all until trying to press the power button 5+ times, so I've picked up a cheapo Corsair CV series to diagnose and hopefully fix that (Pentium and Radeon 550). The XFX was already overkill, but I didn't need to get a new PSU until it started failing which it is now. I've previously battered the crap out of it with olden day SLI builds, and initially had SLI 980 Ti's on my 1kw EVGA anyway, but given that SLI no longer works and is only available on the top end GPU, I won't be doing that anymore.
 
Many many years ago I had a OCZ 600w Silver rated PSU.

Then in 2009 I moved to a Seasonic X650, other than the Seasonic being dead silent compared to the OCZ, in addition my computer would under-volt more as the ripple / voltage quality was superior over the OCZ.

I was that impressed by that Seasonic X650, the last 12 years I will only purchase Seasonic. I have Seasonic PSU's everywhere, workstations, HTPC, home servers. If I put my old Seasonic PSU box's on my desk, the stack would be half way to the ceiling!

Even more I still have my original 12 year old Seasonic X650, and I still trust it as the quality of that unit is so good.
 
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