• Guest, The rules for the P & N subforum have been updated to prohibit "ad hominem" or personal attacks against other posters. See the full details in the post "Politics and News Rules & Guidelines."

Question New system POSTed out of the case. Now it won’t inside the case. Help!

21Jumper

Senior member
Oct 11, 2000
249
0
76
Hey guys,

I just created a new system (parts list below) and I was diligent enough to test everything out of the case. It POSTed fine and recognized all the RAM and the CPU.

After I put it in the case though, now it won’t. Everything turns on including all the RGB but no signal seems to be coming out of the HDMI.

The only difference was that I used extension cable kits for the 24-pin, CPU and PCI-E power. But I’ve since taken those out in the process of elimination and plugged the original cables in, but still getting the same problem.

Here’s everything else I’ve tried:

- plugging the GPU in a different slot
- used one of the Display Ports on the GPU (in both the original and the other slot I tried)
- clear CMOS
- re-seeded all cables and RAM
- taking out one stick of RAM
- used a different GPU (my old GTX 660 from the system I’m replacing)

I think that’s it. I wouldn’t be going out of my mind if it hadn’t posted earlier but since it did, I just can’t think of what else I may have done. Only thing I haven’t done is remove and re-seed the CPU but that’s just because I don’t have any thermal paste on hand right now.

Thanks in advance!

[PCPartPicker Part List](https://pcpartpicker.com/list/zKN7Cz)

Type|Item|Price
:----|:----|:----
**CPU** | [AMD Ryzen 7 2700X 3.7 GHz 8-Core Processor](https://pcpartpicker.com/product/bddxFT/amd-ryzen-7-2700x-37ghz-8-core-processor-yd270xbgafbox) | $229.99 @ Newegg
**Motherboard** | [Asus ROG STRIX B450-F GAMING ATX AM4 Motherboard](https://pcpartpicker.com/product/XQgzK8/asus-rog-strix-b450-f-gaming-atx-am4-motherboard-strix-b450-f-gaming) | $119.99 @ Newegg
**Memory** | [OLOy WarHawk RGB 16 GB (2 x 8 GB) DDR4-3200 CL16 Memory](https://pcpartpicker.com/product/tRsnTW/oloy-warhawk-rgb-16-gb-2-x-8-gb-ddr4-3200-memory-md4u083216beda) | $57.99 @ Newegg
**Video Card** | [ASRock Radeon RX 5500 XT 8 GB Phantom Gaming D OC Video Card](https://pcpartpicker.com/product/H9tKHx/asrock-radeon-rx-5500-xt-8-gb-phantom-gaming-d-oc-video-card-rx5500xt-pgd-8go) | $368.00 @ Amazon
**Case** | [Phanteks Eclipse P300A Mesh ATX Mid Tower Case](https://pcpartpicker.com/product/crqBD3/phanteks-eclipse-p300a-mesh-atx-mid-tower-case-ph-ec300atg_bk01) | $49.99 @ Newegg
**Case Fan** | [In Win Sirius Loop ASL 50 CFM 120 mm Fans 3-Pack](https://pcpartpicker.com/product/NWWfrH/in-win-sirius-loop-asl120-50-cfm-120-mm-fans-3-pack-asl120fan-3pk) | $29.00
| *Prices include shipping, taxes, rebates, and discounts* |
| Total (before mail-in rebates) | $864.96
| Mail-in rebates | -$10.00
| **Total** | **$854.96**
| Generated by [PCPartPicker](https://pcpartpicker.com) 2020-11-29 02:59 EST-0500 |
 

In2Photos

Senior member
Mar 21, 2007
207
20
81
Check the case standoffs for the motherboard. Make sure they are only in the spots you need for your mobo and remove any others that could be contacting the mobo.
 

21Jumper

Senior member
Oct 11, 2000
249
0
76
Check the case standoffs for the motherboard. Make sure they are only in the spots you need for your mobo and remove any others that could be contacting the mobo.
Ok I can try that. What effect would those have though? For future reference.
 

In2Photos

Senior member
Mar 21, 2007
207
20
81
Ok I can try that. What effect would those have though? For future reference.
If there is a standoff contacting an exposed part of the mobo it can cause a short which could lead to no post or even a failure of the mobo or other components.
 

ASK THE COMMUNITY

TRENDING THREADS