Display problem with Radeon HD 4850

JonathanX · Sep 9, 2016

I had from time to time the following problem lately: when I boot my PC, it showed many blue dots all over the screen while booting, and when the "Welcome" screen appeared, the desktop didn't enter, and the monitor went completely black. It first happened when gaming, the game froze, the screen went black and it showed several green dots, and it didn't respond to any commands, I had to restart the PC. Also, I use the Sapphire Trixx program in order to raise the fan speed, and I noticed that after restart, the speed dropped from 45% - the way I set it - to 19 or 18%, something like that. I believe my graphics card got overheated, its temperature usually is around 70 degrees Celsius when not gaming, and it reaches about 80, 82 or 82 degrees Celsius while gaming. Why did this happen? Do I need to change the paste/repaste my card?

INSTG8R · Sep 9, 2016

VRAM has gone bad.

JonathanX · Sep 9, 2016

You think it's the RAM of my video card? GPU-Z shows that everything is in order:

P4-630 · Sep 9, 2016

Time to upgrade your system!!
And windows xp?? :slap:

AlienIsGOD · Sep 9, 2016

JonathanX said:
You think it's the RAM of my video card? GPU-Z shows that everything is in order:

gpu z will not show if the memory has gone bad, what it does show is what you have posted...Specs

INSTG8R · Sep 9, 2016

AlienIsGOD said:
gpu z will not show if the memory has gone bad, what it does show is what you have posted...Specs

This. GPU-Z won't tell you anything. The artifacts you describe are text book VRAM issue.

JonathanX · Sep 9, 2016

Then how do I know that it's the VRAM that has gone bad? I thought it was the paste, which needed to be replaced. If it is indeed a VRAM problem, why do games still work?

SKBARON · Sep 9, 2016

Clean it and repaste. Underclock the card. If that doesn't help, let the card rest after a long game-rendering filled life.

INSTG8R · Sep 9, 2016

JonathanX said:
Then how do I know that it's the VRAM that has gone bad? I thought it was the paste, which needed to be replaced. If it is indeed a VRAM problem, why do games still work?

As SKBARON said underclock it specifically the VRAM if the artifacts stop you have your answer.

JonathanX · Sep 9, 2016

Thank you, but how do I "underclock" it? What do you mean by that exactly? I use the program Sapphire Trixx in order to raise the speed of the fan. I never overclocked the card with any program, so sorry, but I don't understand what you mean by "underclocking"....

INSTG8R · Sep 9, 2016

JonathanX said:
Thank you, but how do I "underclock" it? What do you mean by that exactly? I use the program Sapphire Trixx in order to raise the speed of the fan. I never overclocked the card with any program, so sorry, but I don't understand what you mean by "underclocking"....

You can use TriXX do to it. Just lower the clocks a few MHz at a time and see if it solves the problem.

System Name	ASUSTek Computer Inc.
Processor	AMD Phenom II X4 945
Motherboard	ASUS M4A88T-M/USB3
Memory	2x4 GB DDR3 Kingston
Video Card(s)	Sapphire Radeon HD 7790, 1 GB GDDR5, 128-bit
Storage	Western Digital 500 GB SATA3
Display(s)	Samsung SyncMaster 793DF 17 inch CRT
Case	Delux DLC-MG760 450W Silver/black
Audio Device(s)	Creative Audigy Sound Blaster X-Fi Xtreme Audio SB0570 + Genius SW-5.1 Home Theater
Power Supply	Enermax NAXN 450W
Mouse	Genius, Black
Keyboard	Dell
Software	Windows XP Professional x64 Edition, Version 2003, Service Pack 2

System Name	Hellbox 5.1(same case new guts)
Processor	Ryzen 7 5800X3D
Motherboard	MSI X570S MAG Torpedo Max
Cooling	TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
Memory	2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s)	Powercolor Hellhound 7900XTX
Storage	970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s)	Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case	TT Kandalf L.C.S.
Audio Device(s)	Soundblaster ZX/Logitech Z906 5.1
Power Supply	Seasonic TX~’850 Platinum
Mouse	G502 Hero
Keyboard	G19s
VR HMD	Oculus Quest 2
Software	Win 10 Pro x64

System Name	ASUSTek Computer Inc.
Processor	AMD Phenom II X4 945
Motherboard	ASUS M4A88T-M/USB3
Memory	2x4 GB DDR3 Kingston
Video Card(s)	Sapphire Radeon HD 7790, 1 GB GDDR5, 128-bit
Storage	Western Digital 500 GB SATA3
Display(s)	Samsung SyncMaster 793DF 17 inch CRT
Case	Delux DLC-MG760 450W Silver/black
Audio Device(s)	Creative Audigy Sound Blaster X-Fi Xtreme Audio SB0570 + Genius SW-5.1 Home Theater
Power Supply	Enermax NAXN 450W
Mouse	Genius, Black
Keyboard	Dell
Software	Windows XP Professional x64 Edition, Version 2003, Service Pack 2

System Name	AlderLake / Laptop
Processor	Intel i7 12700K P-Cores @ 5Ghz / Intel i3 7100U
Motherboard	Gigabyte Z690 Aorus Master / HP 83A3 (U3E1)
Cooling	Noctua NH-U12A 2 fans + Thermal Grizzly Kryonaut Extreme + 5 case fans / Fan
Memory	32GB DDR5 Corsair Dominator Platinum RGB 6000MHz CL36 / 8GB DDR4 HyperX CL13
Video Card(s)	MSI RTX 2070 Super Gaming X Trio / Intel HD620
Storage	Samsung 980 Pro 1TB + 970 Evo 500GB + 850 Pro 512GB + 860 Evo 1TB x2 / Samsung 256GB M.2 SSD
Display(s)	23.8" Dell S2417DG 165Hz G-Sync 1440p / 14" 1080p IPS Glossy
Case	Be quiet! Silent Base 600 - Window / HP Pavilion
Audio Device(s)	Panasonic SA-PMX94 / Realtek onboard + B&O speaker system / Harman Kardon Go + Play / Logitech G533
Power Supply	Seasonic Focus Plus Gold 750W / Powerbrick
Mouse	Logitech MX Anywhere 2 Laser wireless / Logitech M330 wireless
Keyboard	RAPOO E9270P Black 5GHz wireless / HP backlit
Software	Windows 11 / Windows 10
Benchmark Scores	Cinebench R23 (Single Core) 1936 @ stock Cinebench R23 (Multi Core) 23006 @ stock

System Name	Aliens Ryzen Rig \| 2nd Hand Omen
Processor	Ryzen R5 5600 \| Ryzen R5 3600
Motherboard	Gigabyte B450 Aorus Elite (F61 BIOS) \| B450 matx
Cooling	DeepCool Castle EX V2 240mm AIO\| stock for now
Memory	8GB X 2 DDR4 3000mhz Team Group Vulcan \| 16GB DDR4
Video Card(s)	Sapphire Pulse RX 5700 8GB \| GTX 1650 4GB
Storage	Adata XPG 8200 PRO 512GB SSD OS / 240 SSD + 2TB M.2 SSD Games / 1000 GB Data \| SSD + HDD
Display(s)	Acer ED273 27" VA 144hz Freesync \|TCL 32" 1080P w/ HDR
Case	NZXT H500 Black \| HP Omen Obelisk
Audio Device(s)	Onboard Realtek \| Onboard Realtek
Power Supply	EVGA SuperNOVA G3 650w 80+ Gold \| 500w
Mouse	Steelseries Rival 500 15 button mouse w/ Razor Goliathus Chroma XL mousemat \| Logitech G502
Keyboard	Logitech G910 Orion Spark RGB w/ Romer G tactile keys \| Logitech G513 Carbon w/ Romer G tactile keys
Software	Windows 10 Pro \| Windows 10 Pro

Display problem with Radeon HD 4850

JonathanX

INSTG8R

Vanguard Beta Tester

JonathanX

P4-630

AlienIsGOD

Vanguard Beta Tester

INSTG8R

Vanguard Beta Tester

JonathanX

SKBARON

INSTG8R

Vanguard Beta Tester

JonathanX

INSTG8R

Vanguard Beta Tester

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Motherboard	ASUS x99 Deluxe
Cooling	Cryorig H5
Memory	2x4GB Corsair Vengeance DDR4 + 2x4GB Kingston HyperX DDR4 @ 3000Mhz
Video Card(s)	OEM GTX 970
Storage	Seagate ST4000VN000, Hitachi 2TB, Crucial CX500 1TB
Display(s)	LG 23EA63
Case	Thermaltake Versa N21
Power Supply	EVGA 650 GQ