Search found 7 matches

by tomywong
Fri Aug 30, 2019 10:42 am
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

I just replaced all capacitors to 1uf. But it is same. Maximum speed still about 100mhz. Maybe I need to try -7 model.
by tomywong
Fri Aug 30, 2019 12:32 am
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

Hi THaase,

Thanks for the hints. I've some 1uf capacitors here. I'll try it and report here. :D
by tomywong
Thu Aug 29, 2019 10:05 am
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

Hi THaase,

Thanks for reply. I use the same board with Winbond chip (32M), it can pass 150-160mhz. But use AS4C32M16SB-6TCN with it, it can only pass arround 90-100mhz. Don't know what's the problem. If board is bad, why Winbond chip can pass 150-160mhz ? It is strange. Maybe I buy the bad chip ?
by tomywong
Thu Aug 29, 2019 9:36 am
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

Hi Sorgelig,

I use SDRAM XS v1.1 board with 64MB SDRAM chip AS4C32M16SB-6TCN. I soldered two board. Both are only pass 90mhz to 100mhz. I read your post, you use AS4C32M16SB-7TCN. It can pass 167mhz. So, AS4C32M16SB-7TCN is more compatible with MiSTer ? Thanks.
by tomywong
Sat Mar 02, 2019 6:40 am
Forum: MiSTer
Topic: Local Sellers for MiSTer Expansion Boards
Replies: 418
Views: 166260

Re: Local Sellers for MiSTer Expansion Boards

SDRAM XS v1.1 $18 USD free shipping from Hong Kong
http://www.tototek.com/store/index.php? ... cts_id=222
by tomywong
Thu Jan 24, 2019 2:27 pm
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

Thank you THaase :D
by tomywong
Thu Jan 24, 2019 11:26 am
Forum: MiSTer
Topic: SDRAM board
Replies: 265
Views: 96939

Re: SDRAM board

I want to make sdram card for myself. Can someone tell me what is the thickness of sdram card PCB ? Thank you.

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