Looking to build a new itx rig as powerful or better the previous system but much smaller itx vs eatx.

nb25

nb25

nb25

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9 Nov 2025
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Lichfield
Too save a long story my old pc failed built in 2017 and im looking to update. New computer aim is it needs to be as powerful or faster than old build and using as modern components as possible. I plan to reuse powersuply but the rest of the build will be from scratch. Motherboard will need to have on-board graphics as I like the safety net if my gpu fails as the pc can still boot from on-board which I currently cant do so im not sure if the gpu was the issue.

My old configuration

Mb: Asus Rampage VI x299
Cpu: i7-7820x
Gpu: Evga 2080ti ftw3
Ram: gskill 16gb kit.

Some notes
Old build was built for overclocking. The new build will not be overclocked.

Im looking to build as cheaply as possible but willing to spend what is required if there is a good justification for doing so.

New build will initially be run on-board graphics unless my new system will work with old gpu. In which case I will add a new gpu in future if it doesn't work.

New build components required
Case
MB
CPU
RAM
Cpu cooling

I want to stick with intel/nividia brands. The new build will also need to be m-itx mb based as id like to save space compared to old build.

I have an existing PSU/HD I intended to use both ssd/nvme drives and is psu evga 750 g2.

I have a rough idea of modern components but main reason for posting this thread is obviously some components are more reliable than others I hope to learn from everyone's experience which is the correct way to go. Thanks in advance for anyone willing to offer advise and I look forward to reading your replys.
 
mickyflinn said:
Hi and welcome.

Did you explore problem solving your old pc ,

It would help tremendously if you told us what you use pc for as we can spec for the most demanding task , e.g gaming or rendering ?

If gaming what resolution do you game at .
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I did try abit of problem solving. I tried a cheap compatible cpu, tried using just one of the memory sticks at time and swapping them around and even tried a new motherboard. None of these changes fixed it. I took it into a computer shop who say they tested the power supply, ram etc but in the end they game it back suggesting the motherboard was the problem. But when this was swapped out with a new one it still wouldn't boot. I took the hard drive out and tested it in my laptop and it worked so I know it's not that. In the end I've come to the conclusion it's likely the gpu as I just get a black screen, no input found and never gets past initial post.

Regards to my intended use for the new computer I dont do any rendering or anything like that just some casual gaming with a 4k 120hz monitor.
 
Tetras said:
ATX PSUs can be an issue if you want to go ITX/SFF. I'd suggest going Micro-ATX (e.g. Lian Li A3 or Antec CX600M) since it is cheaper with more availability of parts.
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Thanks for the advice it makes sense I definitely prefer the LL A3 from these cases and would still be allot smaller than my current.
 
jigger said:
What is the actual fault? Crashing, non bootable, stone dead?
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Computer screen black, mb never reaches bios just keeps looping through post. Tbh Im not looking to repair the old one anymore just strip out the bits I can use.
 
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I think my next question is, for integrated mb graphics does the cpu need to be one with integrated graphics?
 
Tetras said:
Yes. The motherboard ports do not work without it. Any AMD 7000/9000 series CPU except -F models have integrated. Any Intel CPU except -F/-KF have integrated graphics.

The AMD -G CPUs have much better integrated graphics than the regular models, but you're still not going to be doing any serious gaming on these (they're way weaker than your 2080 Ti, for example).
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Yeah I want the integrated graphics as more of a backup incase my future gpu dies atleast the computer can still run on integrated graphics.
 
Tetras said:
According to PassMark, the multithreading ability of your CPU is roughly equivalent to a 12400, so if you get a Ryzen 7600/9600 then you'll be ahead.

Did you answer this? I can't see that you did. It (PC usage) would help us to know what kind of CPU you need.
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I did, I'll copy below.
Regards to my intended use for the new computer I dont do any rendering or anything like that just some casual gaming with a 4k 120hz monitor.

After looking through the cpus I think i5-14600k for the extra £30 seams worth the extra money and would be a decent bump over the i5-12600k.
 
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Okay so looking at the build so far.

Case: Lian Li A3 black/wood/tempered glass
PSU: Evga 750g2 (already have)
CPU: 245k
 
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Tetras said:
12th gen is safe to buy, but I wouldn't buy a 14th gen CPU anymore, not after the degradation issues. The 14600K should be less impacted than the i7/i9, but I still wouldn't buy one.

The 245K and 265K were heavily discounted awhile back, so if I was determined to go Intel, that's what I'd buy instead.

AM5 has hopefully got a better upgrade path than any of the current Intel sockets.
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I see im not aware of these issues so thankyou for the advice. I'd definitely prefer to go intel so ill go with the 245k then as its a similar price, is newer and I really want to try the latest components.

So I know im now looking for a 1851 MB, I know I want to go pcie5 and ddr 5 and have integrated graphics. Any suggestions?
 
Tetras said:
They're not discounted at the moment, maybe for black friday they will be.

OCUK have a bundle deal on a Z890 board and a 265K that's not bad, otherwise I'd look for an entry Z890 board. B860 is also fine (minus overclocking). I don't think Core Ultra is selling that well (early reviews weren't great), so the CPUs/boards go on offer a lot.

Main features to consider: what speed of LAN do you want, number/speed of M.2 slots and USB ports (including Type-C), WIFI6 or WIFI7, USB4/Thunderbolt (or not), number of sound jacks/presence of SPDIF and if you're going integrated: if it has HDMI, DP.

My basket at OcUK:

Total: £633.97 (includes delivery: £7.99)​
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I dont think I'd go for that bundle as its not available now and I dont see the need for the extra power. A 245k should be plenty for me.

Plus there both a atx boards, im looking at m-ATX. As for the other questions ill have to do some thinking id definitely prefer display port and im not going to overclock so B860 boards should be fine for me.

I would also like to have wifi on the board.
 
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Tetras said:
Fair enough, but considering that you come from a HEDT PC which was fairly high-end at the time, are you sure? The 265K is often the best priced/performer from their range, though I'm not saying the 245K is bad.


Hmm. There's several MATX options available, but the VRM tends to be poor on these (not sure why). That shouldn't be an issue with the 245K, but it might be if you went for a mega CPU upgrade in the future.

This one has reasonable specs for the money:
- 4 memory slots
- HDMI & DP on rear
- 3x M.2 slots (1 slot is 2 lane) & 4x SATA
- 1x TB port on rear
- 5Gb LAN (Intel)
- WIFI7 & BT
- 1x Type-C on rear (plus the TB port)
- 2x USB 2.0 (rear)
- 3x USB 3.x (rear)
- 3x sound jacks

My basket at OcUK:

Total: £157.98 (includes delivery: £7.99)​
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Yes this motherboard seams the best fit for me. It also is the only one that ticks all the boxes but also has watercooling support.

So I just need some DDR5 ram and a CPU cooling. I'll be looking for a 16gb kit as I think this is enough for me.
 
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