Unstable gaming experience after upgrading my PC

[jaime.florez.diaz]

Hi,

I recently updated some parts of my PC, making a PC build with: Intel i5-8600 processor, 2 4Gb Crucial DDR4 Ram at 2400mhz, ASUS Prime H370-Plus MoBo and a GTX 1080 ti video card. I already had PSU (THERMALTAKE SMART STANDARD SP-650P 650W 80 PLUS Bronze).
When I try to play games setting the resolution to 4k (3D Games), they tend to freeze or lag a lot... Or just close. Doom fails allocating memory, even at 1080 res.
I have three possible reasons for this to happen, being those: 8Gb of RAM aren't enough for the 1080ti; my PSU doesn't have enough power output; my processor bottlenecks the video card (About this one I'm not so sure). Or maybe the three reasons together make a mess.
As an additional info: my computer already had Win10 installed. I didn't install any new drivers (Maybe this is the sole reason).
Anyone had any experience similar? Or maybe knows what I'm doing wrong there.

Thanks!

 

[jankerson]

That's not a good quality PSU, upgrade to a high quality unit.

 

[logainofhades]

Yea, the smart series PSU's are not very good. You want to do a fresh windows install, when switching to a new motherboard, though. I would start there.

 

[jankerson]

Yea, the smart series PSU's are not very good. You want to do a fresh windows install, when switching to a new motherboard, though. I would start there.

And hooking that thing to a GTX 1080Ti... The things nightmares are made of.

 

[geofelt]

All your reasons are possible.

First of all, I would download the latest GTX1080ti driver directly from the nvidia web site.
I think this is the most likely problem.

650w is plenty for a GTX1080ti. But, the psu is not considered high quality. Over time it can deteriorate.
See if you can't test with a known good psu.

Unless you are also multitasking while gaming, 8gb is likely to be sufficient.
If you want to upgrade ram, consider that

Ram is sold in kits for a reason.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
The internal workings are designed for the capacity of the kit.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Some motherboards, can be very sensitive to this.
This is more difficult when more sticks are involved.
That is why ram vendors will NOT support ram that is not bought in one kit.

If you do buy more disparate sticks, they must be the same speed, voltage and cas numbers.
Even then your chances of working are less than 100%

What is your plan "B" if the new stick/s do not work?

Sometimes increasing the ram voltage in the bios will make things work.

If you want 16gb, my suggestion is to buy a 2 x 8gb kit that matches your current specs.
Then, try adding in your old 8gb,
If it works, good; you now have extra ram.
If not, sell the old ram or keep it as a spare.

 

[androbourne]

MERGED QUESTION
Question from jaime.florez.diaz : "Trying to figure out what's wrong with this setup"

Hi,

I recently updated some parts of my PC, making a PC build with: Intel i5-8600 processor, 2 4Gb Crucial DDR4 Ram at 2400mhz, ASUS Prime H370-Plus MoBo and a GTX 1080 ti video card. I already had PSU (THERMALTAKE SMART STANDARD SP-650P 650W 80 PLUS Bronze).
When I try to play games setting the resolution to 4k (3D Games), they tend to freeze or lag a lot... Or just close. Doom fails allocating memory, even at 1080 res.
I have three possible reasons for this to happen, being those: 8Gb of RAM aren't enough for the 1080ti; my PSU doesn't have enough power output; my processor bottlenecks the video card (About this one I'm not so sure). Or maybe the three reasons together make a mess.
As an additional info: my computer already had Win10 installed. I didn't install any new drivers (Maybe this is the sole reason).
Anyone had any experience similar? Or maybe knows what I'm doing wrong there.

Thanks!

I'd use memset and run a memory test first. See what it comes back.

 

[jaime.florez.diaz]

Well, I'd have to try almost everything. But I just realized that my MoBo has a bad PCI-E slot, so I'll take it to guarantee before trying.
The most common thing I see is that the PSU is not a Good Quality One, so, after expending money on the 1080ti, I wouldn't like to have any energy related issue.
Which PSUs would you recommend? Specially a modular one, since I actually hate the cable mess my current one has. I'll keep the PSU, though, since it was a full upgrade, so I couldn't use any of my old parts (4tg gen Proc/MoBo, DD3 Ram, GTX970).

I'll try things in this order after having back my MoBo:
- Reinstall Windows. I need a fresh install, since a lot of software is installed, along with the previous drivers and stuff.
- Get a new PSU. My current one, as stated by geofelt, should be enough, but I don't want to take the risk in this new PC
- If I keep having the issues, I'll get two more RAMs of the same vendor (Crucial). I used to have 16Gb and never had problems with the games (Even tried 4k, it was laggy, but never stopped working)
If none of the above things solves the issue, my better guess will be that I messed up picking the i5-8600 as my processor and will have to sell it or deal with it.

Thanks for all the replies I'll keep replying after trying every step and inform if my issue gets solved (Maybe it can help someone in the future).

 

[logainofhades]

Seasonic Focus Gold 750w, or Evga G2/G3 750w

 

[jaime.florez.diaz]

I got the MoBo back and built the PC once again. Got an EVGA 1000 GQ PSU (It may be a little overkill) and, since I can't format my PC right now, decided to give it a try and test Doom, but got the same result.
Before I format my PC (I haven't got the chance yet), I remembered something I saw on the card manual which I forgot afterwards (And before opening the thread) and found a little confusing.
The manual states:
"If your graphic card is equiped with a suplemental power adapter, it is required that it be connected at the time of installation. This suplemental power adapter ensures that your graphic card receives the necessary power that will allow it to function at optimal performance levels."
But, afterwards, the user guide says:
"Always use the PCIE power cables from your power supply first, only use included adapter when your Power Supply does NOT have the appropiate connectors".

I ask before I perform the Win10 clean installation, just to make sure I'm good using two a 6+2 cable (And leaving the 2 pins out for the 6pin connector). My guess (And after watching a few videos) is that I don't need the adapters, but I rather have an extra opinion.

Just to provide extra info, this is my card
https://www.amazon.com/EVGA-Optimized-Interlaced-Graphics-11G-P4-6393-KR/dp/B06Y11DFZ3/ref=sr_1_1?ie=UTF8&qid=1532491083&sr=8-1&keywords=EVGA+GeForce+GTX+1080+Ti+SC+Black+Edition
And this is my PSU:
https://www.amazon.com/EVGA-Modular-Warranty-Supply-210-GQ-1000-V1/dp/B017ICWP82/ref=sr_1_2?s=electronics&ie=UTF8&qid=1532491341&sr=1-2&keywords=EVGA+1000W+GQ+80%2B+Gold

 

[jankerson]

I got the MoBo back and built the PC once again. Got an EVGA 1000 GQ PSU (It may be a little overkill) and, since I can't format my PC right now, decided to give it a try and test Doom, but got the same result.
Before I format my PC (I haven't got the chance yet), I remembered something I saw on the card manual which I forgot afterwards (And before opening the thread) and found a little confusing.
The manual states:
"If your graphic card is equiped with a suplemental power adapter, it is required that it be connected at the time of installation. This suplemental power adapter ensures that your graphic card receives the necessary power that will allow it to function at optimal performance levels."
But, afterwards, the user guide says:
"Always use the PCIE power cables from your power supply first, only use included adapter when your Power Supply does NOT have the appropiate connectors".

I ask before I perform the Win10 clean installation, just to make sure I'm good using two a 6+2 cable (And leaving the 2 pins out for the 6pin connector). My guess (And after watching a few videos) is that I don't need the adapters, but I rather have an extra opinion.

Just to provide extra info, this is my card
https://www.amazon.com/EVGA-Optimized-Interlaced-Graphics-11G-P4-6393-KR/dp/B06Y11DFZ3/ref=sr_1_1?ie=UTF8&qid=1532491083&sr=8-1&keywords=EVGA+GeForce+GTX+1080+Ti+SC+Black+Edition
And this is my PSU:
https://www.amazon.com/EVGA-Modular-Warranty-Supply-210-GQ-1000-V1/dp/B017ICWP82/ref=sr_1_2?s=electronics&ie=UTF8&qid=1532491341&sr=1-2&keywords=EVGA+1000W+GQ+80%2B+Gold

NO, you have to use the 2X 6+2 PCIe cables that came with the PSU, don't use adaptors.

And all 8 pins have to be connected in each of the 2 power connections.

 

[jaime.florez.diaz]

Well, given the tries, I can finally say that it just needed the fresh Win10 installation I guess I was wrong when I assumed that Windows will use the appropiate drivers, since it just booted without any kind of issue (Since until Win7, any hardware change resulted in a mess).
After formatting, I gave a try with Doom and it ran flawlessly at 4K resolution.
Still, I've learned a lot, specially that my PSU was a low quality one and changing it was something required because of the big update. Thx to all of you 😀