br44
Experienced Member
Should a normal healthy 6510 in a C64 breadbin get "freshly brewed coffee" scalding hot, or should it be more like "KFC that's been under a heat lamp all day" warm?
I don't have another machine, that's why I'm asking. This is the first commodore 64 I've ever tried to restore.It sounds like it needs a temp probe attached (or other method) to get a formal temperature measurement and perhaps compare that with another IC in another machine. IC's in some designs can run "disturbingly hot" and it probably it does shorten their lives. If it is normal for that IC & design and you think it is too hot, you could cool it down somewhat by attaching a heatsink to its body, if there is room for one.
It shouldn't get hotter than a VIC-II and definitely not freshly brewed coffee hot. What happens when you bend the pin on data line 3 out? Does it still drag down the 5V?
I'm not worried about the power supply. I way over specced it when I removed the original commodore epoxy brick and built something new.Looks broken to me... I wouldn't use it any further to avoid stressing the PSU and replace it... But maybe others can confirm. I can verify it when I get back home to measure a c64
Have you looked into replacement adapters? For example https://tinkerdifferent.com/threads/mos-cpu-replacer-for-c64.996/#post-7982I'm not worried about the power supply. I way over specced it when I removed the original commodore epoxy brick and built something new.
What really sucks is now I have to go find a replacement 6510. The ones on ebay are a LOT of money.
Don't think it's common like PLAs or SIDs, but they are old and can die from materials degrading or suboptimal storage conditionsI wonder what caused it to die? Did someone plug in a bad commodore brick before I purchased the computer? Is the 6510 a common failure?
I saw those, and I saw they were out of stock. However....Have you looked into replacement adapters? For example https://tinkerdifferent.com/threads/mos-cpu-replacer-for-c64.996/#post-7982
No idea about them but looking at the prices it might be worth checking it out
Don't think it's common like PLAs or SIDs, but they are old and can die from materials degrading or suboptimal storage conditions
I saw gerber files to build own ones, but haven't checked what parts are needed or availableI saw those, and I saw they were out of stock. However....
I thought, before spending money and then it turns out it's something else if there's a way to verify that it's the MPU. You wouldn't know anyone with a C64 to try it out?Looking at that link a second time made me notice something. It says it's a replacement for the 6510 OR 8500. I just spent the last few minutes googling around, and it turns out the 8500 is a drop in (superior) replacement for the 6510. It's also a little cheaper in places. So... that's good! I like cheaper.
Nope. but then again, where I live I have to drive fifty miles to the nearest major grocery store. So I wouldn't expect anyone to have a C64 around here.I saw gerber files to build own ones, but haven't checked what parts are needed or available
I thought, before spending money and then it turns out it's something else if there's a way to verify that it's the MPU. You wouldn't know anyone with a C64 to try it out?
Oh yeah, I plan on heatsinking all the warm chips. As of now the computer is still on the workbench due to a bad SID. It'll get heatsinks before getting put back to regular use.I just saw this post and was going to suggest an 8500, they are a bit cheaper and tend to run cooler. I would still recommend add heatsinks to the chips as well to help