VOGONS


First post, by respect2759

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Hi guys, I need some help. I have a Radeon X1600Pro 512Mb AGP card which I want to use in an XP gaming machine. Card makes artifacts, I got it in this condition. I cant afford now to buy another one and I want to upgrade from 128Mb. I removed the heatsink, cleaned the card, tested some traces and I found a dead capacitor. I tested all the caps - loaded them with a multimeter with resistence function and tested voltage. Only one is bad. I have recapped some motherboards, but I changed only those barrel type electrolytic capacitors. This one is a vertical chip capacitor and has different markings, I dont understand it. I know on these the marked one is + but there are some numbers and letters on the top. I read everything what I found, tried some capacitor code decoders, but I am not an electrician and I cant figure out the meaning of codes. Yeah, I know now I look stupid but those barrel types are so easy. Capacitance, voltage and temperature. I found some articles which tells the first two digits are the capacitance and the third is a multiplier. The third digit must be 0,1,2,3,4,5 or 6. Mine has this:
67Z
100
6V

It makes sense only when I read it from top like 616 which is 61uF and 70 volts. My question is a bit dumb. This is the right way to read these capacitors? From top? And not from left to right? Thanks for answers, have a nice days

Soyo 019R1 AM386DX 40MHz, 8Mb ram, 512Kb Trident 9000 Graphics
S26361-D756-X Intel i486DX 33MHz, 4Mb ram, 512Kb - 1Mb graphics on board

Reply 2 of 6, by respect2759

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derSammler wrote:

First line "67Z" has no meaning (it's a code from the manufacturer). The cap has 100uF and is rated for 6V.

6V? Cant find only 6,3V

Soyo 019R1 AM386DX 40MHz, 8Mb ram, 512Kb Trident 9000 Graphics
S26361-D756-X Intel i486DX 33MHz, 4Mb ram, 512Kb - 1Mb graphics on board

Reply 4 of 6, by respect2759

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derSammler wrote:

Yes, 6.3V. It's normally written as 6V on most caps.

Thanks, that 6V confused me a bit. Will solder a new one tomorrow and post the result

One more question 😊
W1
47 0C
UD

Another cap on that GPU. Its functional but how to tell the capacitance of this one?

Soyo 019R1 AM386DX 40MHz, 8Mb ram, 512Kb Trident 9000 Graphics
S26361-D756-X Intel i486DX 33MHz, 4Mb ram, 512Kb - 1Mb graphics on board

Reply 5 of 6, by EleDip

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respect2759 wrote:
W1 47 0C UD […]
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derSammler wrote:

Yes, 6.3V. It's normally written as 6V on most caps.

W1
47 0C
UD

Another cap on that GPU. Its functional but how to tell the capacitance of this one?

That code is for a 47uf cap rated for 16V. There's a page here which seems to confirm and explain it a bit more (down the page).

Reply 6 of 6, by respect2759

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EleDip wrote:
respect2759 wrote:
W1 47 0C UD […]
Show full quote
derSammler wrote:

Yes, 6.3V. It's normally written as 6V on most caps.

W1
47 0C
UD

Another cap on that GPU. Its functional but how to tell the capacitance of this one?

That code is for a 47uf cap rated for 16V. There's a page here which seems to confirm and explain it a bit more (down the page).

Thanks, this really helped 😊 The card makes artifacts after repair too 🙁

Soyo 019R1 AM386DX 40MHz, 8Mb ram, 512Kb Trident 9000 Graphics
S26361-D756-X Intel i486DX 33MHz, 4Mb ram, 512Kb - 1Mb graphics on board