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My old dell optiplex won't post with rx 580 8gb...?

Concabar
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Go to solution Solved by Juular,
6 minutes ago, Concabar said:

I have 500 watt raidmax rx-500xt psu, not a very good psu...

It's not "not a very good", it's straight up terrible. You've said it's brand new, return it and buy a good PSU, like Corsair CX 450W or EVGA GD 500W at least. Even if this wouldn't help you wouldn't have a time-bomb in your PC at least.

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Hi, I recently bought a used dell optiplex 790 mid tower with an i7-2600 installed. I later bought a second hand gigabyte rx 580 8gb to make a 1080p gaming system. I have 500 watt raidmax rx-500xt psu, not a very good psu... The system turned on and worked fine at first, despite only having 4gb ram. I even fired up a few less intensive titles and they ran far over 100 fps with the highest settings. The problems started when I took the card out to change thermal paste as the temps weren't the greatest, I couldn't even do that because the heatsink was firmly stuck to the pcb. I reassessed the card and put it back in the system only to find that it wouldn't post, no image what so ever to the monitor. The card's fans and the system's fans would turn on but no post... I tried booting off the intel integrated graphics and it works fine... Disabling the integrated graphics in windows didn't do anything, not that it matters as the system can't even post and show the dell logo... I tried older bios versions even though I had the newest version when the card was working... I had the amd drivers working and all before... I get the post error code 1 2 and the power button solid. I'm going to take the card to be tested in a another system. I'm just worried the problem is my motherboard or something. The psu is brand new and the card has no led on, signaling that enough power is present (I think). The card was used for mining and it might have a different bios, I didn't check that. The card looks fine, the pcb isn't damaged and the capacitors that are visible are all flat and not popped. 

 

Please help me...

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6 minutes ago, Concabar said:

I have 500 watt raidmax rx-500xt psu, not a very good psu...

It's not "not a very good", it's straight up terrible. You've said it's brand new, return it and buy a good PSU, like Corsair CX 450W or EVGA GD 500W at least. Even if this wouldn't help you wouldn't have a time-bomb in your PC at least.

Tag or quote me so i see your reply

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Bios update to latest

QUOTE ME  FOR ANSWER.

 

Main PC:

Spoiler

|Ryzen 7 3700x, OC to 4.2ghz @1.3V, 67C, or 4.4ghz @1.456V, 87C || Asus strix 5700 XT, +50 core, +50 memory, +50 power (not a great overclocker) || Asus Strix b550-A || G.skill trident Z Neo rgb 32gb 3600mhz cl16-19-19-19-39, oc to 3733mhz with the same timings || Cooler Master ml360 RGB AIO || Phanteks P500A Digital || Thermaltake ToughPower grand RGB750w 80+gold || Samsung 850 250gb and Adata SX 6000 Lite 500gb || Toshiba 5400rpm 1tb || Asus Rog Theta 7.1 || Asus Rog claymore || Asus Gladius 2 origin gaming mouse || Monitor 1 Asus 1080p 144hz || Monitor 2 AOC 1080p 75hz || 

Test Rig.

Spoiler

| Ryzen 5 3400G || Gigabyte b450 S2H || Hyper X fury 2x4gb 2666mhz cl 16 ||Stock cooler || Antec NX100 || Silverstone essential 400w || Transgend SSD 220s 480gb ||

Just Sold

Spoiler

| i3 9100F || Msi Gaming X gtx 1050 TI || MSI Z390 A-Pro || Kingston 1x16gb 2400mhz cl17 || Stock cooler || Kolink Horizon RGB || Corsair CV 550w || Pny CS900 120gb ||

 

Tier lists for building a PC.

 

Motherboard tier list. Tier A for overclocking 5950x. Tier B for overclocking 5900x, Tier C for overclocking 5800X. Tier D for overclocking 5600X. Tier F for 4/6 core Cpus at stock. Tier E avoid.

(Also case airflow matter or if you are using Downcraft air cooler)

Spoiler

 

Gpu tier list. Rtx 3000 and RX 6000 not included since not so many reviews. Tier S for Water cooling. Tier A and B for overcloking. Tier C stock and Tier D avoid.

( You can overclock Tier C just fine, but it can get very loud, that is why it is not recommended for overclocking, same with tier D)

Spoiler

 

Psu tier List. Tier A for Rtx 3000, Vega and RX 6000. Tier B For anything else. Tier C cheap/IGPU. Tier D and E avoid.

(RTX 3000/ RX 6000 Might run just fine with higher wattage tier B unit, Rtx 3070 runs fine with tier B units)

Spoiler

 

Cpu cooler tier list. Tier 1&2 for power hungry Cpus with Overclock. Tier 3&4 for overclocking Ryzen 3,5,7 or lower power Intel Cpus. Tier 5 for overclocking low end Cpus or 4/6 core Ryzen. Tier 6&7 for stock. Tier 8&9 Ryzen stock cooler performance. Do not waste your money!

Spoiler

 

Storage tier List. Tier A for Moving files/  OS. Tier B for OS/Games. Tier C for games. Tier D budget Pcs. Tier E if on sale not the worst but not good.

(With a grain of salt, I use tier C for OS myself)

Spoiler

 

Case Tier List. Work In Progress. Most Phanteks airflow series cases already done!

Ask me anything :)

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Posted

Given it worked initially, its not a BIOS issue. The PSU might not be great, but again, it did infact work.

 

It stopped working when you took it out and started messing with it. Its seriously unlikely that something else (like the PSU or a driver) has magically failed with that one action.

 

You've either damaged something trying to dismantle it, or haven't reinstalled it correctly.

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Thank you everyone for posting, I'll update the thread if I find the correct solution.??

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