PC Sherdog PC Build/Buy Thread, v6: My Power Supply Burned Down My House

[WhiteMousse]

Buying the highest end graphics card allows you to skip more newer GPU generation releases. However the 5090 has problems at the power connector and driver level. Where its retail cost is only justified for a select few power users. Making the risk versus reward not warrant its retail price. Where if the tower listed by others is correct. Its completely the wrong Pc case for a 5090.

With RAM, newly released AMD CPU series/motherboards have a reoccurring problem with not supporting their proper speed till 6-12 months post release. So its best to reference the motherboard manual for specific supported RAM modules.

What ive acquired through osmosis is that your build flows between practical to impractical, lol. Certain aspects of a fresh build make sense to spend more on. For those components can be brought over into newer future builds for decades, yes decades. Such as tower, case fans, power supply, storage device, headphones, mouse, keyboard and microphone. Even in the past five'sh years CPU heatsink manufacturers have begun offering upgrade kits for newly released socket types support. An with monitors, industry is currently in the process of hitting their display type limit.

Can you offer some advice then? I see you're at least somewhat skeptical of the memory/mobo combination. And the case is wrong? Is that correct?

 

[Madmick]

Can you offer some advice then? I see you're at least somewhat skeptical of the memory/mobo combination. And the case is wrong? Is that correct?

He's a bit of a sophist.

He warns you about the motherboard because "AMD CPU series/motherboards have a reoccurring problem with not supporting their proper speed till 6-12 months post release", something I don't recall being a practical issue for mainstream XMP/AMP timings since the Zen 2 series half a decade ago, an issue that arose from the consequences of BLK scaling related to infinity fabric coupling, so users were discouraged from wasting money on kits above 3800MHz, but more pertinently just ignoring that the motherboard you've selected was launched in October 2022. SMH.

Also, your motherboard user manual won't include the list he's trying to talk about it. It's not in there. That list is what I previously mentioned. It's the QVL list. While there's no guarantee as bulletproof as a confirmed frequency for a specific RAM set on the QVL list, in the real world, I generally just eyeball QVL lists to get a feel for the kind of RAM speed that is seeing pronounced support for many kits. Here is the QVL list for the Gigabyte B650 Elite AX V1:

https://www.gigabyte.com/Motherboard/B650-AORUS-ELITE-AX-rev-10-11/support#support-memsup

As you can see, 8000 MHz is confirmed for many kits on that motherboard. It's not like 6400MHz is running up against its ceiling with only the tightest RAM fabrications in the world.

For crying out loud, it's a B650 motherboard. If he had the slighestly body of accrued knowledge, that would leap out across the page, and he'd have known making the comment about 6-12 months was, at best, completely irrelevant. It's not one of the newer B850 boards. We can dive into the pros and cons of that versus newer motherboards, if he feels like it, but mostly that will just end up being a waste of my time.

FYI, this isn't a cause for serious concern, ever. Out of the box RAM will always run at the native JEDEC clocking (as for DDR5). It will be stable. If you come to learn that a predefined overclocking profile, in other words the AMP profile, is not stable when you activate it in the motherboard, then you just revert to what is stable. Then you order a new kit of RAM. Once it arrives, you plug it in, confirm it can reach the advertising clocking stably, and send the old kit back.

 

[KaNesDeath]

Can you offer some advice then? I see you're at least somewhat skeptical of the memory/mobo combination. And the case is wrong? Is that correct?

Personally i'd wait to see what AMD does with AM5. See if its supported for one or two more generations. 9800X3D is the #3(?) best gaming CPU on the market. Though #1 and #2 arent worth their price to performance increase.

Apparently its no longer supplied in the user manual. But in the support section of the manufacturers website for that motherboard like @Madmick posted.

Excluding the driver issues. 5090 has power connector heat issues. Amount of current flowing through such small wires generates a large amount of heat. Compounding it is the bend of the power connector. Further worsened by a mid-tower case designed for aesthetics with front and top glass panels restricting airflow. Where mid-towers side glass side panel will be contacting and putting additional bend pressure on the 5090 power connector.

 

[WhiteMousse]

He's a bit of a sophist.

He warns you about the motherboard because "AMD CPU series/motherboards have a reoccurring problem with not supporting their proper speed till 6-12 months post release", something I don't recall being a practical issue for mainstream XMP/AMP timings since the Zen 2 series half a decade ago, an issue that arose from the consequences of BLK scaling related to infinity fabric coupling, so users were discouraged from wasting money on kits above 3800MHz, but more pertinently just ignoring that the motherboard you've selected was launched in October 2022. SMH.

Also, your motherboard user manual won't include the list he's trying to talk about it. It's not in there. That list is what I previously mentioned. It's the QVL list. While there's no guarantee as bulletproof as a confirmed frequency for a specific RAM set on the QVL list, in the real world, I generally just eyeball QVL lists to get a feel for the kind of RAM speed that is seeing pronounced support for many kits. Here is the QVL list for the Gigabyte B650 Elite AX V1:

https://www.gigabyte.com/Motherboard/B650-AORUS-ELITE-AX-rev-10-11/support#support-memsup

As you can see, 8000 MHz is confirmed for many kits on that motherboard. It's not like 6400MHz is running up against its ceiling with only the tightest RAM fabrications in the world.

For crying out loud, it's a B650 motherboard. If he had the slighestly body of accrued knowledge, that would leap out across the page, and he'd have known making the comment about 6-12 months was, at best, completely irrelevant. It's not one of the newer B850 boards. We can dive into the pros and cons of that versus newer motherboards, if he feels like it, but mostly that will just end up being a waste of my time.

FYI, this isn't a cause for serious concern, ever. Out of the box RAM will always run at the native JEDEC clocking (as for DDR5). It will be stable. If you come to learn that a predefined overclocking profile, in other words the AMP profile, is not stable when you activate it in the motherboard, then you just revert to what is stable. Then you order a new kit of RAM. Once it arrives, you plug it in, confirm it can reach the advertising clocking stably, and send the old kit back.

A bit amateurish of me but I looked up the case and Google says it should be fine for the 5090. Are there any issues either of you might foresee?

 

[Madmick]

A bit amateurish of me but I looked up the case and Google says it should be fine for the 5090. Are there any issues either of you might foresee?

Case compatibility is where the PCPP compatibility filter is the least reliable. Because, even if a case is strictly compatible, per specifications, that doesn't mean there might not be practical issues with a particular combination of components. This usually isn't a major concern with large ATX cases, and your case is. It's ~66.2L. For perspective, the smallish Mid ATX towers will come in around 40L, or even below.

Easiest way to check all that is to throw out some Googles to see if any owners of that case have had issues installing a 5090 GPUs, specifically those of similar dimensions & slot width as the one you're buying.

 

[avenue94]

Personally i'd wait to see what AMD does with AM5. See if its supported for one or two more generations. 9800X3D is the #3(?) best gaming CPU on the market. Though #1 and #2 arent worth their price to performance increase.

Zen 6 is already a done deal for AM5, plus any ancillary refreshes after that. No point buying under the belief that Zen 6 will be AM6.

 

[Madmick]

Apparently its no longer supplied in the user manual.

LOL. When was the last time QVL lists were supplied in the user manual?

Please, entertain us.

 

[WhiteMousse]

@KaNesDeath What's the issue with the case? I remember your comments from the last build. I don't always agree with you but I'm interested in your thoughts

@Madmick Given my build do you see any bottlenecks?

 

[Madmick]

@Madmick Given my build do you see any bottlenecks?

Bottlenecks? No. You're getting the best hardware in existence: an 9800X3D and 5090. If anything ever holds anything else up it's moot. You have the best.

I assume you aren't using WiFi with the desktop computer, and are wiring in. That motherboard runs WiFi 6 instead of WiFi 7 that you see in the newer motherboards. Otherwise, the biggest drawback of the motherboard versus the newer $200 B850 AORUS Elite AX WIFI7 Ice, for example, would be the lack of a PCIe 5.0 slot. And that means...

NVIDIA RTX 5090 PCIe 5.0 vs. 4.0 vs. 3.0 x16 Scaling Benchmarks | GamersNexus

GPUs NVIDIA RTX 5090 PCIe 5.0 vs. 4.0 vs. 3.0 x16 Scaling Benchmarks February 13, 2025 Last Updated: 2025-02-13 We compare the PCIe generation differences using the RTX 5090 across PCIe 5.0 x16, PCIe 4.0 x16, and PCIe 3.0 x16 The Highlights For our setup, we used our AMD Ryzen 7 9800X3D CPU test...

gamersnexus.net

...nothing.

For that you make a substantial sacrifice in the quality of the VRM with the newer board. This matters more, and it's inferior to the older one I recommended that MySpot already owns. There is nothing else of significance in difference between the two except that the newer board costs $30 more. For that amount, you could buy a superior dedicated WiFi 7 PCIe card or USB adapter, though likely I suspect you'd spend a bit more than that for a serious upgrade if you really cared about WiFi speeds and reception.

 

[Slobodan]

Personally i'd wait to see what AMD does with AM5. See if its supported for one or two more generations. 9800X3D is the #3(?) best gaming CPU on the market. Though #1 and #2 arent worth their price to performance increase.

Wait, how is it the third best?

 

[SandisLL]

Case compatibility is where the PCPP compatibility filter is the least reliable. Because, even if a case is strictly compatible, per specifications, that doesn't mean there might not be practical issues with a particular combination of components. This usually isn't a major concern with large ATX cases, and your case is. It's ~66.2L. For perspective, the smallish Mid ATX towers will come in around 40L, or even below.

Easiest way to check all that is to throw out some Googles to see if any owners of that case have had issues installing a 5090 GPUs, specifically those of similar dimensions & slot width as the one you're buying.

There also worth is to see case material and openings for air flow ...regardless it is air cooled or water & air cooling solution.

Better IMHO is if case "bottom " is mounted on " legs " providing case "bottom " elevation something like 1 - 2 inches abowe desk / deck level with air intakes in bottom too, not only from sides of tower but also from bottom too...and exaust in sides of " tower " and back side of tower..

Tower material aluminium alloy or even better if from copper plates.
Large ATX mini towers are ~60 l - ~ 85 l.

 

[Madmick]

There also worth is to see case material and openings for air flow ...regardless it is air cooled or water & air cooling solution.

Better IMHO is if case "bottom " is mounted on " legs " providing case "bottom " elevation something like 1 - 2 inches abowe desk / deck level with air intakes in bottom too, not only from sides of tower but also from bottom too...and exaust in sides of " tower " and back side of tower..

Tower material aluminium alloy or even better if from copper plates.
Large ATX mini towers are ~60 l - ~ 85 l.

All prudent suggestions and observations.

The 5000X case is wide freaking open, and 245mm wide with the PSU under a shroud. Here's an image one user shared (albeit with a touch of GPU sag).

I can't wait to hear how this case supposedly won't support a 5090.

 

[SandisLL]

All prudent suggestions and observations.

The 5000X case is wide freaking open, and 245m wide with the PSU under a shroud. Here's an image one user shared (albeit with a touch of GPU sag).

I can't wait to hear how this case supposedly won't support a 5090.

Will bear IMHO.
If enough space for other hardware stuff.

 

[SandisLL]

All prudent suggestions and observations.

The 5000X case is wide freaking open, and 245m wide with the PSU under a shroud. Here's an image one user shared (albeit with a touch of GPU sag).

I can't wait to hear how this case supposedly won't support a 5090.

I had did some modding type stuff when I was young.
Later ofc lesser interest and time for this.

Then were " nice " hot processors and RAMs too.

So I had for examlpe aluminium alloy case, with airflow for power supply block and " house " ofc also from " bottom ", sides and behind from block + on " legs" elevated bottom of block some 5 cm from " desk " surface in order to get " bottom " of box from aluminium alloy or copper plates.... higher in order to ensure better air flow.

It wasn't for me main income source because construction materials sales offered steady income, smoothly paid tax then + other bonuses.
While modding type stuff might be some batches with individual contracts.
To make case if materials and tools are provided for me was easy stuff...

 

[KaNesDeath]

@KaNesDeath What's the issue with the case?

Airflow and width.

Wait, how is it the third best?

AMD resolved the 8+ core X3D chip game performance some months back. So they beat their 8 core X3D series chip now.

 

[Slobodan]

Airflow and width.





AMD resolved the 8+ core X3D chip game performance some months back. So they beat their 8 core X3D series chip now.

Proof? Reviews show margin of error differences. TechPowerUp has the 9800X3D on top even with the 9950X3D overclocked.

 

[WhiteMousse]

Airflow and width.





AMD resolved the 8+ core X3D chip game performance some months back. So they beat their 8 core X3D series chip now.

Any recommendations?

 

[KaNesDeath]

Any recommendations?

Are you looking for aesthetics and or functionality?

Proof? Reviews show margin of error differences. TechPowerUp has the 9800X3D on top even with the 9950X3D overclocked.

View attachment 1112079

These are reviews at release. AMD update came a month or so later that gave the 9900X3D and 9950X3D marginal game performance uplift over the 9800X3D.

 

[WhiteMousse]

Are you looking for aesthetics and or functionality?





These are reviews at release. AMD update came a month or so later that gave the 9900X3D and 9950X3D marginal game performance uplift over the 9800X3D.

Functionality primarily, but aesthetics never hurts

 

[Madmick]

Airflow and width.

Width? LOL, are you serious? You think a case that is 245mm wide and on paper is specified to support air coolers up to a height of 170mm has insufficient width?

iCUE 5000X RGB Tempered Glass Mid-Tower ATX PC Smart Case — White

The CORSAIR iCUE 5000X RGB is a mid-tower ATX case that shows off your PC, and not its cables. Four stunning tempered glass panels and three included CORSAIR SP RGB ELITE fans put your PC on display.

www.corsair.com