System build for my son - advice needed.

Joebob

Joebob

Joebob

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It's been many years since I have posted on these forums, but it used to be my go to place for advice regarding gaming PC builds. My last build was circa 2007-2008 and then I switched exclusively to laptops for work and consoles for gaming.

Anyway, my son turned 13 on Xmas eve and this year he requested cash money as he wants to build a gaming PC. I got him a case, PSU & SSD so he had something to open and to get him started, and one of my brothers has just purchase a new GPU so gifted him his old one which is a 3090 RTX :eek: - he just got a 4090 and still lives with our dad so has plenty of expendable income, we're both blown away by this!

So, as I'm not up with the latest info I need help and advice to spec and build the rest. Should he go AMD or Intel? DDR4 or DDR5? Water or air? etc. etc.

He has £750 to spend and already has the following items: -

* PSU = MSI MAG A750GL PCIE5, 750W Fully Modular, ATX 3.0, PCIe 5.0 GPU Support
* GPU = MSI GeForce RTX 3090 24GB
* SSD = Crucial P3 Plus 1TB M.2 PCIe Gen4 NVMe Internal SSD
* Case = MSI MAG FORGE 100R Mid Tower Gaming Computer Case

He already has a decent gaming mouse, but will need a gaming keyboard, a monitor (pref' with speakers built in) and a copy of Windows (can you still get a legit install for free by getting an older version and updating?).

Any help and advice on any of the above is greatly appreciated.

Many thanks in advance.

Joe
 
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What resolution is he gaming at ?

A 750w PSU is cutting it fine with a 3090 as it has power spikes of 500w , what psu was you using with the 3090 ?

AMD 7800x3d is the fastest gaming CPU on AM5 platform and along with a b650 motherboard and 32gb DDDR5 should fit in budget.

Take a look at the Thermalright Peerless Assassin 120se it's the value to performance king of CPU coolers

My basket at OcUK:

Total: £667.97 (includes delivery: £7.99)[
/INDENT]​
 
AMD Ryzen 7 7800X3D Eight Core 5.00GHz (Socket AM5) Processor - Retail
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Asus TUF Gaming B650-Plus WIFI (Socket AM5) DDR5 ATX Motherboard
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TeamGroup Delta RGB 32GB (2X16GB) DDR5 PC5-44800C30 6000MHz Dual Channel Kit - Black (FF3D532G6000HC30DC01)
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When I bought the 750W PSU I thought it would be ample as I really wasn't expecting him to be given a 3090 RTX! Not sure was PSU my brother was using with it, I will ask next time I see him.

Problem is he has already opened up the PSU and fitted it in the case, so we can't really return it now - if we can keep the wattage down in the rest of the build that might help.

Thanks.
 
Joebob said:
When I bought the 750W PSU I thought it would be ample as I really wasn't expecting him to be given a 3090 RTX! Not sure was PSU my brother was using with it, I will ask next time I see him.

Problem is he has already opened up the PSU and fitted it in the case, so we can't really return it now - if we can keep the wattage down in the rest of the build that might help.

Thanks.
Click to expand...
At least you are aware of it as adding higher powered components to your pc will leave less headroom for the GPU spikes

Google 3090 power spikes to get more info.

I added some parts for you to look at but you may not have seen them before your reply.

Any comments?
 
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mickyflinn said:
What resolution is he gaming at ?

A 750w PSU is cutting it fine with a 3090 as it has power spikes of 500w , what psu was you using with the 3090 ?

AMD 7800x3d is the fastest gaming CPU on AM5 platform and along with a b650 motherboard and 32gb DDDR5 should fit in budget.

Take a look at the Thermalright Peerless Assassin 120se it's the value to performance king of CPU coolers

[/INDENT]
Click to expand...
Thanks for that, although it doesn't leave much left over for monitor and keyboard. I was looking at a AMD Ryzen 5 7600 as it's over £100 cheaper and only 65W compared to 120W for the 7800. I know that with gaming it used to be that a mid range CPU would suffice with the cost savings being put towards a better GPU. Is that still the case or will he really suffer with a 7600?
 
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Joebob said:
Thanks for that, although it doesn't leave much left over for monitor and keyboard. I was looking at a AMD Ryzen 5 7600 as it's over £100 cheaper and only 65W compared to 120W for the 7800. I know that with gaming it used to be that a mid range CPU would suffice with the cost savings being put towards a better GPU. Is that still the case or will he really suffer with a 7600?
Click to expand...
In terms of performance the performance uplift 7600 to a 7800x3d is about 25% on average while being roughly 80% more. The 7600 is still decent performer and great entry CPU for that platform plus you can always upgrade when newer CPUs are released.

If he's gaming at 1440p this is a good monitor for the money.

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Gigabyte 27" G27Q 2560x1440 IPS 144Hz 1ms FreeSync/G-Sync Compatible LED Backlit Widescreen Gamin

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