Oh my God!

Discussion relating to Socket 7 hardware.
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Revhead
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Oh my God!

Post by Revhead »

Check this out!
I have never heard of these particular CPUs?
Anyone care to comment?
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 40573&rd=1
Thanks, Revhead
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His Royal Majesty King V
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Post by His Royal Majesty King V »

It's interesting, but I thought that when one sells a large bulk of something, that there's usually a big discount.

I don't know . . what's the going rate of K6-III+ CPUs these days? This seems a bit high for a bulk-rate deal.

Plus the overclocking claims . . I mean, yeah, these bad boys will overclock like crazy, but he's guaranteeing it for all 100 processors? Not to mention that I'm definitely the kind of person who'd balk at over-volting a CPU by around 30 percent!!

I know I'm coming off sounding like a wet blanket, but I was just under the impression that the prices for these CPUs peaked long ago, and that $35 these days could be better spent elsewhere.

Think on it, if you buy the lot, it's around $34-35 per CPU. If you sell them individually on ebay, once you get fees and shipping in, you're looking at at least a cost of $40 per CPU. A little more if you actually want to do more than break even on it.

I'm thinking for about that much money, a cheap Althon/Duron or PIII/Celeron board and CPU can be scrounged up that'll run notably faster and still use all the same old components from someone's SS7 board.


Don't get me wrong, I like the K6-III+ CPUs as much as anyone, it's just that I think they're overpriced. Keep in mind though that I've not been shopping much on eBay for computer parts recently. My only experience was that it cost me about $22 shipped to get a slocket AND a Celeron 800 for a BX-board that I had. That was several months ago, no less.
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Revhead
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Post by Revhead »

I think this guy probably bought up big a while back and has been left holding the kitty.
I mean, the market for these CPUs has long since reached its peak, so his investment is really evaporating before his eyes.
The longer he holds on to them, the less they are worth - ergo his eagerness to get rid of the lot.
I was more interested in the flavour of these these K6's. I haven't come across them before?
Thanks, Revhead
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Post by Jim »

K6-III+E 400 s? Yeah have seen them advertized individually at about $39.00 on E-Bay. They are not as good for overclocking as the 450 ACZ. There was a guy posting here who got one; who as I recall had it set at 2.4 v. trying to get 600 Mhz out of it.
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Revhead
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Post by Revhead »

What about the voltage though? 1.6 volts?
Thanks, Revhead
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Post by Jim »

Well that is what you set it at for 400 Mhz. (per AMD specs). He was kind of overvolting I'd say, and I seem to recall that King pointed that out to him too. But the last I heard, it was still alive. The thread is in here somewhere, complete with links to ads for the processor that claimed 600 Mhz.
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His Royal Majesty King V
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Post by His Royal Majesty King V »

Aside from the fellow Jim mentioned,I also seem to recall occasionally stumbling across a reference to these 1.6V CPUs.

I'm pretty sure that whenever I did, it was on an eBay ad while I was still actively searching for K6-2+ and K6-III+ CPUs.

They were never well known to the best of my knowledge, but they were out there.

If the K6-2+ and the K6-III+ were the CPUs for laptops that nobody would ever admit worked on desktops (info from AMD and from MB manufacturers was never exactly abundant), then by comparision these 1.6V jobs are the crazy uncle in the attic that nobody ever talks about.

Well, I mean, aside from crazy people like us at K6Plus! :)
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Post by sylvan2626 »

I bought one of these a couple of months ago...

I intend to try it out in one of my EPoX MVP3G2 or G5 boards. The board's SW1 settings start at 1.8V (core voltage) and scale up in the manual's chart. I think I now have the logic worked out to scale the SW1 back to go to 1.6V (and lower) and then work up in .1V increments. Have not tested the settings with my digital multimeter yet.
Anyway, this project will begin soon, once I finish the PC Chips/K6-III+ build. The 1.6V caught my eye in the ad as well as the OC and stability claims. I just gotta try (FRY?) at least part of it!

Kicking around in the back of my mind is a SS7 system using this CPU with a core voltage of 1.5 or 1.6 to maybe 1.8 and a (large?) passive cooling system. No fan noise! If I could run at 450 - 500MHz with a fanless cooling solution, I would be tickled speechless.
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Post by sylvan2626 »

I should begin my tinkering around with this CPU/motherboard combination in the next few days. Plan to set it up at spec first, stablize it, and see just what the temps actually are. Next step will be to try core voltage on the low side.
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Post by sylvan2626 »

Well, started playing around with this CPU on my EP-MVP3G2 last night. Interesting CPU...I can raise the core voltage in 0.1V increments with my board.

I started off at 1.3V and 400MHz with just a HS and went up to 1.6V and 500MHz, still using just a HS. CPU temp peaked out at 41C.


Data below taken when I was using a FHS.

At 1.7V and 500MHz temp was 42C.

At 1.8V and 550MHz temp was 47C.

Temps reported are the peak temps reported by Motherboard Monitor 5 during heavy CPU activity. Light activity, i.e. web surfing, temp runs around 37C and using a FHS.
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His Royal Majesty King V
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Post by His Royal Majesty King V »

I take it 550MHz was a no-go at less than 1.8V?

Was 500MHz completely stable at 1.6V?
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Post by sylvan2626 »

Last night was just the "get acquainted" period. Have not had much time to spend on the trial; started at 9:30 last night. Please remember that I have not yet run memtest86+ (or memtest86) or Prime 95, etc. because of the time required to run these programs. I'm unwilling to run my PC unattended. So, with that in mind, here are my opinions/first impressions so far:

1. 500MHz at 1.6V (no CPU fan!) I will call "reliably stable" at this point (until I can run memtest86+ error-free for several passes over several hours). I'm using W2KPro as the operating system and have several programs (Spybot, Ad-Aware, Symantec Antivirus, and Roxio's GoBack) that experience has taught me are fair indicators of a system's stability. At this setting all programs will run and complete their tasks. GoBack in particular will IMMEDIATELY (after first giving me a message) reboot my PC if it detects even a hint of instability.

2. 550MHz at 1.6V and 1.7V would fail in one of the four programs. However, a layer of complexity may get added here because I am using K6Speed to change the CPU multiplier after W2K loads. I am currently leaving the motherboard's multiplier jumper set at "4" and changing core voltage with the board's SW1. Before I will say that 1.6V or 1.7V will not work at 550MHz, I will first use the board's jumper only in setting the multiplier and run memtest86+ for several hours.
550MHz at 1.8V ran stably - I was able to complete all operations under Spybot, Ad-Aware, NAV, and GoBack did not reboot.

3. I have not done a burn-in for the CPU. I believe that this CPU is capable of 1.7V and 550MHz.

4. I doubt that the CPU will attain 600MHz (on a 100MHz FSB) without raising core voltage up to 2.1V or 2.2V and using an active cooling solution.

5. I am pleased with the low-end voltage/heat-sink only testing and the temperatures attained. My ultimate plan is to run as low a core voltage as I can and use a passive cooling solution while getting as many MHz as I can. My first priority here is to obtain a stable operating system with low temperatures while using passive CPU cooling. This system will be my QUIET web surfer/office apps PC.

6. I want to also try 4.0 or 4.5 multiplier on a 112MHz FSB, but I currently have PC100 memory modules in the PC. I will have to find some PC133.
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Post by sylvan2626 »

Well, ran memtest86+ for a little over 7 hours with 6 passes completed and no errors. Settings were 5.5 multiplier (jumper on the board), 1.7V on the core voltage (within CPU's specs of 1.5V to 1.7V), and a FSB of 100MHz. I am currently using the PC for this posting at those settings. Temperature is 37C and I am using active cooling.

So, to sum up at this point:
1. The CPU seems OK between 1.3V and 1.7V and speeds of 400MHz through 550MHz. I used active cooling for 550MHz.

2. In order to boot up at a "6" multiplier and 100Mhz FSB, I had to set the core voltage at 2.1V. I tried first 1.7V and had no activity at all, other than a single beep. I then increased core voltage in 0.1V increments and attempted to boot. Board activity increased with each incremental voltage increase until a successful boot-up at 2.1V.

I will play around with this for a while and then next pick up my thread at this site on either the K6-III+ 500ANZ or the K6-2+ 550ACZ.
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His Royal Majesty King V
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Post by His Royal Majesty King V »

Definitely then 550MHz is the "sweet spot" for that CPU.

I'm sort of the conservative type when it comes to overdoing things on a CPU, but if you can get 100% stability at 550MHz using only 1.7V (or preferably less!), that's the way to go.

The seller seems to be right in terms of what the CPU will do, but frankly, an extra 50MHz requiring at least 0.4V more . . that's too little benefit for too much risk for my tastes.

Pretty cool though, overall.
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Post by sylvan2626 »

I agree - a 23% over-volt on the core is a little much.

Since I last posted, I've been alternating between 1.7V and 1.8V at 550MHz. When I am working through me emails, I get error messages that tell me something like "a delayed write could not be saved". I have my email set up to save to folders on a USB drive, and recently changed ISP. My previous ISP used POP3 servers for email and this one uses IMAP for email.

So, between the three recent changes (CPU, ISP, and email folders on a USB drive), I am trying to sort out what the error message really means. I first thought that the CPU was the problem.

Strange thing - I cannot detect anything missing when I subsequently open the emails.
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