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Radeon 5700XT Problems

Biblin

Biblin

Biblin

Associate
Joined
19 Mar 2004
Posts
26
Hi folks,

I bought new guts for new year (listed below), but I've been having problems with GPU.

- MSI Tomahawk Max B450
- Powercolor Red Devil 5700XT
- 16GB Ram (I forget which).

I keep getting black screens, sometimes in game, sometimes on the desktop, generally after an hour or two of use. It'll go back, then return, and just repeat doing that until I shutdown and restart.

I've had a poke around and can see that there seem to be black screen issues with the cards, but I want to check that the known issue is manifesting the same way as I'm seeing it (i.e. I haven't got a faulty card).

One thing to note, is I didn't upgrade the power supply which is currently a Corsair HX520. I don't think there are power issues - everything else appears stable - but shout if you know better.

Anyone else know of any likely cause and/or workarounds? A card that flakes out after 2h is of limited use so need to consider if I have to RMA it.
 
Hi,

Your PSU is a model from 2007. It has 3 12V rails that should supply the videocard but their maximum capacity is only 18A per rail.

You better test with a modern, this year power supply designed for the modern videocards requirements. This means a single 12V rail with as high as possible Ampere rating.
 
^ Tried that. No dice. I'll grab a new PSU since that's a good idea anyway, but I'm not convinced it's that. It has to be running for a while before it starts crapping out. Overheating perhaps?
 
Biblin said:
^ Tried that. No dice. I'll grab a new PSU since that's a good idea anyway, but I'm not convinced it's that. It has to be running for a while before it starts crapping out. Overheating perhaps?
Click to expand...

You can try to RMA the card but I am sure the retailer will return your RMA and say the card is OK.

Important to read: https://www.tomshardware.com/reviews/geforce-radeon-power,2122-6.html

This step is necessary because to determine the power supply class, only the actual power consumption of the graphics card is important. The previous value, with efficiency, is only crucial for the calculation of electricity cost.

Unfortunately, now another very important factor comes into play: the current. At these high values, many older power supplies fail when a new high-end graphics card is installed. Not all 500 watts are created equal, especially when it comes to cheap power supplies. Since many components are powered on the 12 V line, the power supply also needs sufficient current (amperage, A).

Let’s take the Radeon HD 4870 as an example. AMD states “500 watt power supply” as a requirement on the packaging. According to the actual measurements, though, the graphics card doesn’t need more than 150 watts even under full load. Now we’ll calculate in 150 watts for the CPU, motherboard and drives, 300 watts should be enough. If we assume from this a 300 watt load on the 12 V line, this means 25 A is required for this rail.

Formula for the calculation:

Current Strength (Amps) = Watt : Volt 25 A = 300 Watts : 12 Volts

Cheap power supply 500 watts with 17 A on the 12V line.

As you can see from the stated power rating, you can very quickly run into trouble with this 500-watt power supply, because despite the 500 W figure, it only provides 17 A on the 12 V line—at least 20 A to 25 A is necessary for a current standard PC with the HD 4870. So even if AMD sets 500 watts as a requirement, you can not assume all cheap power supplies will suffice based solely on this parameter.

With current brand name power supplies, things are different: pretty much every 500-watt brand name power supply will provide 25 A on the 12 V line. Even older brand name power supplies with fewer watts achieve the required targets.

Brand name power supply: 433 watts and 33 A on the 12 V line.

If you want to be on the safe side with your power supply, you should determine the maximum power consumption of all components, and then calculate the maximum current needed. Especially when running SLI or CrossFire, the current requirements can quickly become more important than the wattage class with high-end graphics chips (such as the GeForce Ultra 3SLI with 38.8 A at 465.6 watts).
Click to expand...
 
Make sure you get the new patch 20.13 ... make sure you set your computer to never go to sleep and only put it to sleep when you want. And make sure you got a good dp cable.
I had a couple black screens and computer shut downs but so far 2 days ... been ok.

I got a red devil 5700 and real happy with it; nice lighting etc and according to this:
https://forums.overclockers.co.uk/threads/5700-xt-which-are-quiet-er.18872675/
the quietest of the bunch.
 
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