Re: Strange lines on screen w/Supermac Thunder II GX - is the VRAM bad?

Date: Thu, 13 Nov 2003 17:07:15 -0800 From: John Niven <[EMAIL PROTECTED]> On Thursday, November 13, 2003, at 03:54 PM, Jeff Walther wrote: Identify the power pin on the memory chips. Now, unless the memory chips are 'J' lead, it should be possible (with careful soldering) to lift the power

Re: Strange lines on screen w/Supermac Thunder II GX - is the VRAM bad?

On Thursday, November 13, 2003, at 03:54 PM, Jeff Walther wrote: Identify the power pin on the memory chips. Now, unless the memory chips are 'J' lead, it should be possible (with careful soldering) to lift the power pin of the memory chips one at a time. This will completely disable that

Re: Strange lines on screen w/Supermac Thunder II GX - is the VRAM bad?

At 15:30 -0500 11/13/2003, Vintage Macs wrote: Date: Wed, 12 Nov 2003 13:46:07 -0800 From: John Niven <[EMAIL PROTECTED]> On Tuesday, November 11, 2003, at 07:46 PM, Greg Shafritz wrote: Here's what I'm thinking could be the problem: 1. A bad VRAM chip on the video card 2.

Re: Strange lines on screen w/Supermac Thunder II GX - is the VRAM bad?

On Tuesday, November 11, 2003, at 07:46 PM, Greg Shafritz wrote: Here's what I'm thinking could be the problem: 1. A bad VRAM chip on the video card 2. A defect in the special adapter cable that this card uses (13w3 to DB-15 adapter) Sounds like a bad VRAM chip. The problem is to

Strange lines on screen w/Supermac Thunder II GX - is the VRAM bad?

BUT the white lines are still there! The only setting that makes the lines disappear is "Black & White". When I set the video card to Black & White, the display looks normal. Can one of our resident experts please help me figure this out? Here's what I'm thinking cou

Re: IIci ROM slot/Parity/VRAM

> > Another way to do this on the IIsi is to create a > > 768K disk cache, which > > has the added benefit of ... disk cache. :-) > > How could it? The CPU still must access that RAM to > move data in and out, so it's still swapping control > back and forth between video and CPU. Yes, but so is t

Re: IIci ROM slot/Parity/VRAM

--- Cameron Kaiser <[EMAIL PROTECTED]> wrote: > Another way to do this on the IIsi is to create a > 768K disk cache, which > has the added benefit of ... disk cache. :-) How could it? The CPU still must access that RAM to move data in and out, so it's still swapping control back and forth between

Re: IIci ROM slot/Parity/VRAM

> Yes, that's true. I dunno how much difference it > actually makes though. The IIsi has basically the > same RAM setup as the IIci, but its Bank A is soldered > and fixed at 1meg. There is a IIsi RAM Muncher INIT > that fills up all of the 1meg not used by the video > buffer. Thus it improves perf

Re: IIci ROM slot/Parity/VRAM

--- Charles Estabrooks <[EMAIL PROTECTED]> wrote: > The ROM slot in my IIci is vacant. I have seen this > for sale, but what > would it do for me if I had one? Most likely nothing, unless the DIP ROM chips are missing. ;) > Also, How can I tell if I have a parity or > non-parity motherboard? W

Re: IIci ROM slot/Parity/VRAM

At 09:11 -0500 on 19/12/02, Charles Estabrooks wrote: >The ROM slot in my IIci is vacant. I have seen this for sale, but what >would it do for me if I had one? Nothing, because they never made one ;) >Also, How can I tell if I have a parity or non-parity motherboard? I want >to be sure I get t

Re: IIci ROM slot/Parity/VRAM

On 12/19/02 9:11 AM, "Charles Estabrooks" <[EMAIL PROTECTED]> wrote: > The ROM slot in my IIci is vacant. I have seen this for sale, but what > would it do for me if I had one? Some Mac IIci's and si's had their ROMs on a separate card instead of on the motherboard. If your IIci works without on

IIci ROM slot/Parity/VRAM

The ROM slot in my IIci is vacant. I have seen this for sale, but what would it do for me if I had one? Also, How can I tell if I have a parity or non-parity motherboard? I want to be sure I get the right type of RAM. I think I also read somewhere that the IIci uses Bank A for video RAM and you

Re: ATi extention Was: Determining the amount of VRAM I have

At 18:53 -0400 on 23/10/02, Robert Gray wrote: >>Anyone know if the ATi extention still works for the GC card with OS 9.1? > >What's "the ATi extention" and where can I get it? Check the FAQ for the details. Basically it enables the 8*24GC's acceleration on Power Macs or PPC-upgraded 68K Macs. -

ATi extention Was: Determining the amount of VRAM I have

>Anyone know if the ATi extention still works for the GC card with OS 9.1? What's "the ATi extention" and where can I get it? -- Vintage Macs is sponsored by and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Camera

Re: Determining the amount of VRAM I have

At 22:39 -0700 on 21/10/02, Gregg Eshelman wrote: >--- "J.S. Garrison" <[EMAIL PROTECTED]> wrote: > >> If the VRAM has 2 chips, its 256k. If it has 4, it's >> 512k. > >The 4*8 card needs a pair of 512K ones to become an >8*24, right? Nope. 256K

Re: Determining the amount of VRAM I have

At 11:09 -0500 on 21/10/02, Luca Rescigno wrote: >Oh, thanks. That makes it easy. > >> If the VRAM has 2 chips, its 256k. If it has 4, it's 512k. Easy, perhaps, but unfortunately, untrue. The 4*8 SIMMs, however, are all 256K. I've seen plenty of non-Apple VRAM modules tha

Re: Determining the amount of VRAM I have

I just got a version 1.1 GC on eBay for 8 bucks :) > > I wish people would quit bidding so #>%>! much for > the version 1.1 24AC cards on eBay. :P -- Vintage Macs is sponsored by and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon

Re: Determining the amount of VRAM I have

--- "J.S. Garrison" <[EMAIL PROTECTED]> wrote: > If the VRAM has 2 chips, its 256k. If it has 4, it's > 512k. The 4*8 card needs a pair of 512K ones to become an 8*24, right? 'Course if I had an 8*24GC I'd put it in the Radius and the 24bit NuBus Radius ca

Re: Determining the amount of VRAM I have

If I remember correctly Apple used the same VRAM simms used to upgrade the 4*8 to an 8*24 in the LC series. I believe that would be a 256k VRAM simm. >From: Luca Rescigno <[EMAIL PROTECTED]> >Reply-To: <[EMAIL PROTECTED]> (Vintage Macs) >To: <[EMAIL PROTECTED]&

Re: Determining the amount of VRAM I have

Oh, thanks. That makes it easy. > If the VRAM has 2 chips, its 256k. If it has 4, it's 512k. > > Jeff -- Vintage Macs is sponsored by <http://lowendmac.com/> and... Small Dog Electronicshttp://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital C

Re: Determining the amount of VRAM I have

> In my quest to upgrade my LC III+, I opened it up to look at the VRAM. > I already know about the RAM; I have a 16 MB module which I may replace > with a 32 MB one. But what about VRAM? The VRAM upgrade slot has a SIMM > in it, but I'm not sure how big it is. It's la

Determining the amount of VRAM I have

In my quest to upgrade my LC III+, I opened it up to look at the VRAM. I already know about the RAM; I have a 16 MB module which I may replace with a 32 MB one. But what about VRAM? The VRAM upgrade slot has a SIMM in it, but I'm not sure how big it is. It's labeled 4*8 (4 dot 8).

Re: IIvx VRAM on a 4*8 videocard?

At 00:39 -0700 on 28/10/01, Gregg Eshelman wrote: >What sort of VRAM does the Apple 4*8 card take >to upgrade to the 8*24? Someone on the LEM Swap Same as the Quadra line and some LCs - 80ns, 128K IIRC. Might be 256K, but I'd have to check at home. I'll be going home later a

IIvx VRAM on a 4*8 videocard?

What sort of VRAM does the Apple 4*8 card take to upgrade to the 8*24? Someone on the LEM Swap list offered me the VRAM from a IIvx in trade for my Apple MIDI interface and cables. = "The earth swarms with inhabitants. Why then should nature, which is fruitful to an excess here, be so

Re: Performa 575, system 7.1 or 8.1, Mystic VRAM

"Michael J. Flaherty" <[EMAIL PROTECTED]> wrote: > Do you have 70ns VRAM in the Mystic 040 ? If so, where did you > find it ? I haven't been able to locate any. I don't know. I have never thing of this problem. I just overclock it and it works. I had over

Re: Performa 575, system 7.1 or 8.1, Mystic VRAM

Using system picker or system switcher you can just install 2 operating system on the same hard disk and switch between them whenever you like... My personal experience with mac os 8 on the 68040 is that it was not very stable. I did like it on the ppc macs though... For the ppc's it was kind

Re: Performa 575, system 7.1 or 8.1, Mystic VRAM

>In fact, I have: >SE/30 030/50MHz/128MB >Mystic 040/FPU/43MHz/132MB Do you have 70ns VRAM in the Mystic 040 ? If so, where did you find it ? I haven't been able to locate any. I just received a 20 MHz crystal (yesterday) to run mine at 40 MHz, but my VRAM is 80ns and I'm

VRAM

I asked this question on the pci list but got no response, can somebody please help. Thanks. THE ROCK wrote: > Hello listers, > Will VRAM from a Motorola Starmax 2340 MT work in a powermac 7500/7600? > TIA. > Peter > > -- -- Vintage Macs is sponsored by <http://lowendmac

VRAM

I have a 256K VRAM that is for an LCIII. I don't know if it is good or not. If anyone is interested in it, I'll plug it in and see if it works. Pay shipping and it's yours. -- --- My email address is changed to [EMAIL PROTECTED] - please change your addr