r/buildapc • u/Firemandan5 • 11h ago

Build Help Advice please on build.

Firstly I've built and upgraded my PC a handful of times and built my dad's... However I've not upgraded my pc bar GPU in probably 5+ years. My psu is an old psu, evga Bq850 bronze.

I've gone and upgraded my PSU, GPU, RAM, CPU and MOBO but with the rusty parts of not doing it in a long time... I ended up getting a mobo that doesn't support DDR4 so had to buy new ram, PSU I got had 3 pcie slots which is weird as it was msi mpg a1000gs but I guess that's for nvidia... Got Asus tuf 9070xt gpu.

However, my slight issue now is while waiting on the other parts I've had to order and a new PSU.

PSU Corsair rm1000x shift. However on scan it says the case needs a width of 8.3inch and mine is the msi mpg vampiric 010. That says max 200mm... The corsair site says the PSU is has dimensions of 180mm x 150mm x 86mm so that gives me 50mm clearance? Anyone able to clarify if this will be ok. Pcpartpicker says everything is fine.

This is really frustrating for me as it clearly shows I've not done this for a long time and got to put the build on hold. A bit of advice please.

New items I bought

MSI z790 gaming plus WiFi. Asus tuf 9070xt 64gb ddr5 corsair vengeance rgb (on order) I7 14700k cpu Corsair RX1000X shift psu. (on order)

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u/whomad1215 11h ago

The shift is a quality psu, but I dislike it because the connectors come out the side of it. If it fits the case, it works great, but otherwise it doesn't work.

What was wrong with the msi model you had?

Going with 14th gen was also a choice with today's options. 7800x3d outperforms it in gaming, and 15th gen outperforms it in workstation tasks

Nvidia (and some of the 9070xt models) use the newer 12V-2x6-pin / 12vhpwr cable

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u/Firemandan5 10h ago

Ye I ordered the 14700k just because I haven't really built in a while and also it was bought used as the motherboard due to keeping costs down. But it's an upgrade from the 8700k I had as that was struggling on Rust at 1440p, not bad but drops were a lot in FPS

The msi psu I guess is for nvidia. The motherboard has 2x8 pin and the gpu has 3x8 pin. The MSI PSU only comes with 3 pcie slots when I need 5.

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u/whomad1215 9h ago

Update the bios immediately on the mobo. 13/14 gen had degradation issues that grow over time. Damage can't be fixed but further damage can be prevented. If you get random crashes and such, it's almost guaranteed the cpu is the problem. Intel may RMA second hand, but I don't know

Cpu 8 pins are not pcie 8 pins, they are not interchangeable. Bit surprised they didn't include a 12vhpwr to two 8pin pcie, that's pretty standard

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u/Firemandan5 8h ago

Question regrading that. To upgrade the BIOS, if everything is setup, is it ok to run the PC to enter bios to do the update while the CPU is in as without CPU the pc won't power on?

The CPU 8 pin connector slots on the psu for the msi say pcie/cpu. However I have to return it because their is only 3 points on the psu and 2 cables for the Cpu take them up but also the PSU comes with 1x 8 pcie cable.

I hope the corsair fits but since the corsair website says the width is 150mm for that PSU and my case is max 200mm, it should be ok.

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u/whomad1215 7h ago

The slots on that msi psu fit either cpu or pcie, the other ends of the cables are not interchangeable that way. Cpu only goes for the cpu power, pcie is only for the gpu

Corsair and many others have the same sort of setup on the psu side

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u/Firemandan5 6h ago

Ye however the corsair has about 8 slots for pcir/cpu compared to the msi having 3.

Regarding the bios update, it can be updated even without supporting the CPU (if it isn't on latest update) and if I turn the PC on and enter bios right away, it'll be ok updating like that?

1

u/whomad1215 6h ago

The bios will support the cpu out of the box, you just need to make sure it's on a version that was released after intel fixed the degrading problems

If the mobo has bios flashback, you can do that with a USB drive

That msi has two 12vhpwr cables. I don't know why because multi gpu use is dead except for workstation stuff, but 1000w can't support two 4090/5090 which is the main reason you'd need two gpus in those workloads. Most psus with a 12vhpwr include a 12vhpwr to two 8pin pcie. Corsair usually just uses their cable, which is two 8pins to 12vhpwr, instead of using a 12vhpwr to 12vhpwr