Re: AMD Athlon II x3 440 Overclocking??
OK now this is odd. Anything past 220 FSB on the Windows based EasyTune6 will not work. Does this mean my RAM isn't up to it?
I don't see any reason why my BIOS won't go further than 225 frequency. Even with an underclock it doesn't get past 225, without some sort of freeze (EasyTune6) or no POST (which weirdly enough, did work and I was getting 3.5 Ghz, no freezes, stable).
Why doesn't the same settings now work? I am quite confused by this.
Re: AMD Athlon II x3 440 Overclocking??
Right, I know what the problem is.
Why on earth has Gigabyte made an AM3 board limited? The HT speed is limited to x5. K8 CPU speed, which is Athlon 64 x2 HT link.
The limitation is not the CPU, its got to be the motherboard. The HT link cannot be increase, so im stuck with x5 or lower with my Athlon II x3.
The board is fully capable of an overclock, but Gigabyte has reduced the HT link speed so everything else is limited due to that.
Seems like the problem, but why on earth would Gigabyte limit this board?
Re: AMD Athlon II x3 440 Overclocking??
Quote:
Originally Posted by
mikeo01
Right, I know what the problem is.
Why on earth has Gigabyte made an AM3 board limited? The HT speed is limited to x5. K8 CPU speed, which is Athlon 64 x2 HT link.
The limitation is not the CPU, its got to be the motherboard. The HT link cannot be increase, so im stuck with x5 or lower with my Athlon II x3.
The board is fully capable of an overclock, but Gigabyte has reduced the HT link speed so everything else is limited due to that.
Seems like the problem, but why on earth would Gigabyte limit this board?
Your motherboard is based on an older chipset,the Nvidia 7025 which does not support the full HT speed of newer CPUs like the Athlon II X3 440. Also overclocking an unlocked Athlon II X3 on your motherboard should be done with a bit of caution too.
IIRC,I did tell you this before:
http://forums.hexus.net/2199997-post4.html
Re: AMD Athlon II x3 440 Overclocking??
I am not unlocking it.
I have locked the core so it is an Athlon II x3. What I am saying is the CPU frequency won't go past 215 and I do not know why.
I am keeping it as a Athlon triple core, not a Phenom.
Re: AMD Athlon II x3 440 Overclocking??
Quote:
Originally Posted by
mikeo01
I am not unlocking it.
I have locked the core so it is an Athlon II x3. What I am saying is the CPU frequency won't go past 215 and I do not know why.
I am keeping it as a Athlon triple core, not a Phenom.
Like I said, the motherboard does not support the full HT frequency of new CPUs, as it does not support HT3.0 which the Athlon II X3 uses! If you want full HT speed you need a motherboard with a newer chipset.
Re: AMD Athlon II x3 440 Overclocking??
But why would that effect the CPU frequency itself?
Re: AMD Athlon II x3 440 Overclocking??
I believe the limit for early versions of HT was 1GHz, if you're running it at x5 multi with 220 bus then you're at 1.1GHz. Try dropping the HT multiplier and see if you get any further. Overclocking the HT bus is known for causing instability with minor, at best, performance gains.
Re: AMD Athlon II x3 440 Overclocking??
Just to add to what Bagnaj said, HT speed isn't generally an important performance thing and you probably wouldn't notice if you dropped it to x2 tbh.
Drop HT to x4, and you should be good for a 250MHz FSB before it goes out of spec again.
Re: AMD Athlon II x3 440 Overclocking??
Overclocking the HT bus is actually known to produce decent gains in performance:
http://www.anandtech.com/show/3877/a...ance-scaling/7
That is with a Phenom II X6,so the Athlon II/Phenom II X3 and X4 CPUs will produce slightly less gains. The Athlon II/Phenom II CPUs are known to be bandwidth limited designs especially when compared to Intel designs from the last few years.
The Athlon II X3 has a native HT frequency of 2000MHZ as it is uses HT3.0 and the 7025 is only supports HT1.0(1000MHZ) which is what the older generation Athlon 64 CPUs supported.
Re: AMD Athlon II x3 440 Overclocking??
Those graphs are for CPU-NB, setting the speed of the integrated memory controller and hence L3 cache. We want as much speed there as we can get.
I was talking HT speed, which mainly bridges the PCIe interface, unless you are using integrated graphics in which case it fetches screen data from the CPU to chipset and probably matters a lot more.
Re: AMD Athlon II x3 440 Overclocking??
I meant to say CPU-NB. Must be having a senior moment!:lol:
Re: AMD Athlon II x3 440 Overclocking??
Quote:
Originally Posted by
DanceswithUnix
... unless you are using integrated graphics in which case it fetches screen data from the CPU to chipset and probably matters a lot more.
There's a good example of this in the early 780G / 790GX reviews: the 780G review is done with an Athlon X2 4850e (i.e. HT1.0), whereas the 790GX review is done with a Phenom X4 9850 (i.e. HT3.0). The 780G gets a fairly significant boost in performance, *just* from having a HT3 CPU in the socket.
Of course, since the HT1 only allowed for 4GB/s bandwidth, and a PCIe 2.0 x16 slot can handle 8GB/s on its own (don't forget that the southbridge, and therefore all storage and peripherals, also conmmunicate with the CPU over the HT link), it is possible that the HT1 link *could* bottleneck the system in general if its getting a heavy pounding...
Re: AMD Athlon II x3 440 Overclocking??
Quote:
Originally Posted by
scaryjim
There's a good example of this in the early 780G / 790GX reviews: the 780G review is done with an Athlon X2 4850e (i.e. HT1.0), whereas the 790GX review is done with a Phenom X4 9850 (i.e. HT3.0). The 780G gets a fairly significant boost in performance, *just* from having a HT3 CPU in the socket.
Of course, since the HT1 only allowed for 4GB/s bandwidth, and a PCIe 2.0 x16 slot can handle 8GB/s on its own (don't forget that the southbridge, and therefore all storage and peripherals, also conmmunicate with the CPU over the HT link), it is possible that the HT1 link *could* bottleneck the system in general if its getting a heavy pounding...
That was the sort of thing I was thinking of.
But for overclocking, you can lose a little HT to gain stability for a better CPU frequency.
I'm sure I have read overclocking advice that says to drop HT multiplier right down at the start of an overclock so you can ignore it, and put some back at the end when you are sure your core frequency is stable. In this case though, if Mike sets HT to x4 then he is back at his full 1GHz when bus frequency hits 250MHz which is pretty good so I doubt he will need to drop down to x3 by going higher.
Re: AMD Athlon II x3 440 Overclocking??
Quote:
Originally Posted by
CAT-THE-FIFTH
I meant to say CPU-NB. Must be having a senior moment!:lol:
You had me doubting myself for a while there though until I figured one of us was having a moment and I figured it was your turn :D
Re: AMD Athlon II x3 440 Overclocking??
Right DanceswithUnix was right about dropping the HT at the start.
Can anyone tell me whats happening though.
Right, reset BIOS to default.
Drop the HT to x1
CPU volt 1.475
DRAM 5.33 1066 mhz
CPU-NB freq x10
Increase CPU freq by 10 each time, finally got to 250. DRAM at 1332 mhz if I remember rightly.
Bump up the HT to x1, CPU freq reset. So I increase the CPU freq and it wouldn't allow past 210... with everything at same settings.
So I set the BIOS stuff to default, restart. Did the whole thing again but with HT x4, wouldn't get past x1. So I thought OK I will leave it at x1 with 250 cpu freq, wouldn't allow it.
So using the same settings to get an overclock of 3.7 ghz, wouldn't work after setting BIOS to default. Why on earth wouldn't that work with EXACTLY the same settings as I used?
Thanks for everyones help.
Re: AMD Athlon II x3 440 Overclocking??
Support for DDR3 1333(OC)/1066/800 MHz memory modules < they're serious about this!
I have the same board rev 3.1 which will run 1600 xmp, no other xmp clocks will run, only the 800, 1066, 1333 and 1600 supported by the board. As you can see from this handy list, I can only run fsb of 240/241, 250/251, 266/267 or 300. 300 was a no go, may work for a 4 core. My board also will only boot with default settings if the HT and NB are set to anything other than auto. Presently I'm running a 1045T @3.6 GHZ, 1066 mem, 266FSB and 2666 NB for video coding. Games ran best at 250FSB, 3.4GHZ and 1333, some graphics and office apps ran best at 240, 3.25 and 1600.
4 5.33 6.66 8
200 800 1066 1332 1600
201 804 1071.33 1338.66 1608
202 808 1076.66 1345.32 1616
203 812 1081.99 1351.98 1624
204 816 1087.32 1358.64 1632
205 820 1092.65 1365.3 1640
206 824 1097.98 1371.96 1648
207 828 1103.31 1378.62 1656
208 832 1108.64 1385.28 1664
209 836 1113.97 1391.94 1672
210 840 1119.3 1398.6 1680
211 844 1124.63 1405.26 1688
212 848 1129.96 1411.92 1696
213 852 1135.29 1418.58 1704
214 856 1140.62 1425.24 1712
215 860 1145.95 1431.9 1720
216 864 1151.28 1438.56 1728
217 868 1156.61 1445.22 1736
218 872 1161.94 1451.88 1744
219 876 1167.27 1458.54 1752
220 880 1172.6 1465.2 1760
221 884 1177.93 1471.86 1768
222 888 1183.26 1478.52 1776
223 892 1188.59 1485.18 1784
224 896 1193.92 1491.84 1792
225 900 1199.25 1498.5 1800
226 904 1204.58 1505.16 1808
227 908 1209.91 1511.82 1816
228 912 1215.24 1518.48 1824
229 916 1220.57 1525.14 1832
230 920 1225.9 1531.8 1840
231 924 1231.23 1538.46 1848
232 928 1236.56 1545.12 1856
233 932 1241.89 1551.78 1864
234 936 1247.22 1558.44 1872
235 940 1252.55 1565.1 1880
236 944 1257.88 1571.76 1888
237 948 1263.21 1578.42 1896
238 952 1268.54 1585.08 1904
239 956 1273.87 1591.74 1912
240 960 1279.2 1598.4 1920
241 964 1284.53 1605.06 1928
242 968 1289.86 1611.72 1936
243 972 1295.19 1618.38 1944
244 976 1300.52 1625.04 1952
245 980 1305.85 1631.7 1960
246 984 1311.18 1638.36 1968
247 988 1316.51 1645.02 1976
248 992 1321.84 1651.68 1984
249 996 1327.17 1658.34 1992
250 1000 1332.5 1665 2000
251 1004 1337.83 1671.66 2008
252 1008 1343.16 1678.32 2016
253 1012 1348.49 1684.98 2024
254 1016 1353.82 1691.64 2032
255 1020 1359.15 1698.3 2040
256 1024 1364.48 1704.96 2048
257 1028 1369.81 1711.62 2056
258 1032 1375.14 1718.28 2064
259 1036 1380.47 1724.94 2072
260 1040 1385.8 1731.6 2080
261 1044 1391.13 1738.26 2088
262 1048 1396.46 1744.92 2096
263 1052 1401.79 1751.58 2104
264 1056 1407.12 1758.24 2112
265 1060 1412.45 1764.9 2120
266 1064 1417.78 1771.56 2128
267 1068 1423.11 1778.22 2136
268 1072 1428.44 1784.88 2144
269 1076 1433.77 1791.54 2152
270 1080 1439.1 1798.2 2160
271 1084 1444.43 1804.86 2168
272 1088 1449.76 1811.52 2176
273 1092 1455.09 1818.18 2184
274 1096 1460.42 1824.84 2192
275 1100 1465.75 1831.5 2200
276 1104 1471.08 1838.16 2208
277 1108 1476.41 1844.82 2216
278 1112 1481.74 1851.48 2224
279 1116 1487.07 1858.14 2232
280 1120 1492.4 1864.8 2240
281 1124 1497.73 1871.46 2248
282 1128 1503.06 1878.12 2256
283 1132 1508.39 1884.78 2264
284 1136 1513.72 1891.44 2272
285 1140 1519.05 1898.1 2280
286 1144 1524.38 1904.76 2288
287 1148 1529.71 1911.42 2296
288 1152 1535.04 1918.08 2304
289 1156 1540.37 1924.74 2312
290 1160 1545.7 1931.4 2320
291 1164 1551.03 1938.06 2328
292 1168 1556.36 1944.72 2336
293 1172 1561.69 1951.38 2344
294 1176 1567.02 1958.04 2352
295 1180 1572.35 1964.7 2360
296 1184 1577.68 1971.36 2368
297 1188 1583.01 1978.02 2376
298 1192 1588.34 1984.68 2384
299 1196 1593.67 1991.34 2392
300 1200 1599 1998 2400